300, 600 and 900 ppm Increases in the Air's CO2 Concentration:
For a more detailed description of this table, click here.
Glycine max (L.) Merr. [Soybean]
| 
             300 ppm 
           | 
          
             600 ppm 
           | 
          
             900 ppm 
           | 
        |
| Number of Results | 
             290 
           | 
          
             29 
           | 
          
             7 
           | 
        
| Arithmetic Mean | 
             47.9% 
           | 
          
             70.7% 
           | 
          
             80.9% 
           | 
        
| Standard Error | 
             2.2% 
           | 
          
             7.1 
           | 
          
             8.9% 
           | 
        
| 
             Experimental Conditions 
           | 
          
             300 ppm 
           | 
          
             600 ppm 
           | 
          
             900 ppm 
           | 
        |
| 
             Ackerson et al. (1984)  | 
          
             field, open-top chambers 
           | 
          
             | 
          
             
  | 
          
             38% 
           | 
        
| 
             Allen et al. (1988)  | 
          
             soil bins, growth chambers 
           | 
          
             38% 
           | 
          
             62%  | 
          
             | 
        
| 
             Allen et al. (1991)  | 
          
             soil bins, growth chambers 
           | 
          
             58% 
           | 
          
             61%  | 
          
             | 
        
| 
             Amthor et al. (1994)  | 
          
             open-top chambers, seed 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Amthor et al. (1994)  | 
          
             open-top chambers, whole plant 
           | 
          
             36% 
           | 
          
             
  | 
          
             | 
        
| 
             Baker et al. (1989)  | 
          
             soil bins, growth chambers, day/night 26/19°C 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Baker et al. (1989)  | 
          
             soil bins, growth chambers, day/night 31/24°C 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Baker et al. (1989)  | 
          
             soil bins, growth chambers, day/night 36/29°C 
           | 
          
             14% 
           | 
          
             
  | 
          
             | 
        
| 
             Bencke-Malato et al. (2019)  | 
          
             Leaf biomass after 24 days of plants grown hydroponically in controlled environment chambers; cv Embrapa 48 
           | 
          
             37% 
           | 
          
             
  | 
          
             | 
        
| 
             Bencke-Malato et al. (2019)  | 
          
             Stem biomass after 24 days of plants grown hydroponically in controlled environment chambers; cv Embrapa 48 
           | 
          
             46% 
           | 
          
             
  | 
          
             | 
        
| 
             Bencke-Malato et al. (2019)  | 
          
             Root biomass after 24 days of plants grown hydroponically in controlled environment chambers; cv Embrapa 48 
           | 
          
             28% 
           | 
          
             
  | 
          
             | 
        
| 
             Bencke-Malato et al. (2019)  | 
          
             Total biomass after 24 days of plants grown hydroponically in controlled environment chambers; cv Embrapa 48 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Bernacchi et al. (2007)  | 
          
             Seed yield biomass of plants grown from seed to maturity under standard field conditions for four complete growing seasons at the SoyFACE facility in central Illinois (USA) at a high (385 mm/season) total evapotranspiration (ET) 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Bernacchi et al. (2007)  | 
          
             Seed yield biomass of plants grown from seed to maturity under standard field conditions for four complete growing seasons at the SoyFACE facility in central Illinois (USA) at a modest (285 mm/season) total evapotranspiration (ET) 
           | 
          
             76% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 54-62 DAP, charcoal-filtered air 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 54-62 DAP, 1.5 times ambient O3 
           | 
          
             50% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 75-83 DAP, charcoal-filtered air 
           | 
          
             36% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 75-83 DAP, 1.5 times ambient O3 
           | 
          
             66% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 97-106 DAP, charcoal-filtered air 
           | 
          
             28% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (1997)  | 
          
             open-top chambers, 97-106 DAP, 1.5 times ambient O3 
           | 
          
             94% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to low (24 nmol O3/mol air) ozone concentrations, grown from seed sown in the ground in open-top chambers in 1999 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to high (75 nmol O3/mol air) ozone concentrations, grown from seed sown in the ground in open-top chambers in 1999 
           | 
          
             45% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to low (24 nmol O3/mol air) ozone concentrations, grown from seed sown in large pots (15-L) in open-top chambers in 1999 
           | 
          
             10% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to high (75 nmol O3/mol air) ozone concentrations, grown from seed sown in large pots (15-L) in open-top chambers in 1999 
           | 
          
             51% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to low (24 nmol O3/mol air) ozone concentrations, grown from seed sown in the ground in open-top chambers in 2000 
           | 
          
             19% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to high (75 nmol O3/mol air) ozone concentrations, grown from seed sown in the ground in open-top chambers in 2000 
           | 
          
             68% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to low (24 nmol O3/mol air) ozone concentrations, grown from seed sown in large pots (21-L) in open-top chambers in 2000 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005a)  | 
          
             Seed biomass of well watered and fertilized plants, exposed to high (75 nmol O3/mol air) ozone concentrations, grown from seed sown in large pots (21-L) in open-top chambers in 2000 
           | 
          
             86% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005b)  | 
          
             Total plant residue biomass of plants grown in open-top field chambers 
           | 
          
             31% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker et al. (2005b)  | 
          
             Total plant residue biomass of plants grown in open-top field chambers with 1.5 times ambient O3 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker and Fiscus (2005)  | 
          
             Well watered and fertilized plants grown from seed to maturity out-of-doors in pots in open-top chambers at ambient ozone 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Booker and Fiscus (2005)  | 
          
             Well watered and fertilized plants grown from seed to maturity out-of-doors in pots in open-top chambers in the presence of 1.5 x ambient ozone 
           | 
          
             51% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (1995)  | 
          
             controlled environment chamber 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2005a)  | 
          
             Leaf dry mass per unit area of plants grown in the field in open top chambers 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2005b)  | 
          
             Seed yield biomass of well fertilized plants exposed to normal precipitation while being grown from seed to maturity out-of-doors in open-top chambers continually flushed with ambient-CO2 air or with enriched-CO2 air for 14 hours per day (day only enrichment) for a total of four growing seasons 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2005b)  | 
          
             Seed yield biomass of well fertilized plants exposed to normal precipitation while being grown from seed to maturity out-of-doors in open-top chambers continually flushed with ambient-CO2 air or with enriched-CO2 air for 24 hours per day (day + night enrichment) for a total of four growing seasons 
           | 
          
             52% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2014)  | 
          
             Seed yield of soybean (cultivar Clark) of non-irrigated and non-fertilized plants grown from seed in a field of the Beltsville Agricultural Research Center, Beltsville, Maryland, USA, with daylight-only atmospheric CO2 
           | 
          
             55% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2014)  | 
          
             Seed yield of soybean (cultivar Clark) of non-irrigated and non-fertilized plants grown from seed in a field of the Beltsville Agricultural Research Center, Beltsville, Maryland, USA, with 24-hour atmospheric CO2 
           | 
          
             73% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2014)  | 
          
             Seed yield of soybean (cultivar Spencer) of non-irrigated and non-fertilized plants grown from seed in a field of the Beltsville Agricultural Research Center, Beltsville, Maryland, USA, with daylight-only atmospheric CO2 
           | 
          
             47% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2014)  | 
          
             Seed yield of soybean (cultivar Spencer) of non-irrigated and non-fertilized plants grown from seed in a field of the Beltsville Agricultural Research Center, Beltsville, Maryland, USA, with 24-hour atmospheric CO2 
           | 
          
             67% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in open top chambers and harvested in 2013; cv Spencer 
           | 
          
             105% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in open top chambers and harvested in 2014; cv Spencer 
           | 
          
             74% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in open top chambers and harvested in 2014; cv Holt 
           | 
          
             45% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in a FACE system and harvested in 2013; cv Spencer 
           | 
          
             56% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in a FACE system and harvested in 2014; cv Spencer 
           | 
          
             36% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce (2016)  | 
          
             Seed yield at maturity of well-fertilized plants grown in a FACE system and harvested in 2014; cv Holt 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce and Nasyrov (2012)  | 
          
             Stem biomass of seedlings grown to the two-leaf stage in 20-cm-diamerter pots - filled to a depth of 21 cm with a soil mixture containing a fertile silt loam soil, peat moss, and perlite in the ratio of 3:1:1 by volume - within controlled environment chambers under control (C) conditions 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Bunce and Nasyrov (2012)  | 
          
             Stem biomass of seedlings grown to the two-leaf stage in 20-cm-diamerter pots - filled to a depth of 21 cm with a soil mixture containing a fertile silt loam soil, peat moss, and perlite in the ratio of 3:1:1 by volume - within controlled environment chambers under water-stressed (WS) conditions 
           | 
          
             27% 
           | 
          
             
  | 
          
             | 
        
| 
             Campbell et al. (1988)  | 
          
             soil bins, growth chambers 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Castillo et al. (1989)  | 
          
             soil bins, growth chambers 
           | 
          
             36% 
           | 
          
             39%  | 
          
             | 
        
| 
             Cure et al. (1988a)  | 
          
             pots (8 liter) high nitrogen 
           | 
          
             40% 
           | 
          
             
  | 
          
             | 
        
| 
             Cure et al. (1988a)  | 
          
             pots (8 liter), low nitrogen 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Cure et al. (1988b)  | 
          
             pots (8 liter), low phosphorus 
           | 
          
             24% 
           | 
          
             
  | 
          
             | 
        
| 
             Cure et al. (1988b)  | 
          
             pots (8 liter), high phosphorus 
           | 
          
             51% 
           | 
          
             
  | 
          
             | 
        
| 
             Cure et al. (1989)  | 
          
             pots (8 liter) 
           | 
          
             60% 
           | 
          
             
  | 
          
             | 
        
| 
             Deepak and Agrawal (2001)  | 
          
             open-top chamber, cv. PK 472 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Deepak and Agrawal (2001)  | 
          
             open-top chamber, cv. PK 472, SO2 stressed 
           | 
          
             115% 
           | 
          
             
  | 
          
             | 
        
| 
             Deepak and Agrawal (2001)  | 
          
             open-top chamber, cv. Bragg 
           | 
          
             49% 
           | 
          
             
  | 
          
             | 
        
| 
             Deepak and Agrawal (2001)  | 
          
             open-top chamber, cv. Bragg, SO2 stressed 
           | 
          
             92% 
           | 
          
             
  | 
          
             | 
        
| 
             Delucia et al. (1985)  | 
          
             pots (1 liter) 
           | 
          
             66% 
           | 
          
             106%  | 
          
             | 
        
| 
             Dermody et al. (2008)  | 
          
             Three seasons of soybean yields produced at the SoyFACE facility in Illinois, USA 
           | 
          
             25% 
           | 
          
             
  | 
          
             | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             102%  | 
          
             | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             90%  | 
          
             | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             
  | 
          
             110% 
           | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             
  | 
          
             78% 
           | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             
  | 
          
             105% 
           | 
        
| 
             Drag et al. (2020)  | 
          
             Total plant biomass after five weeks CO2 exposure in controlled environment greenhouse chambers; cv Pioneer 93B15 
           | 
          
             | 
          
             
  | 
          
             90% 
           | 
        
| 
             Ferris et al. (1999)  | 
          
             glasshouse 
           | 
          
             36% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1993, ambient ozone, seed yield 
           | 
          
             4% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1993, ambient ozone, total biomass 
           | 
          
             43% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1993, 1.5 x ambient ozone, seed yield 
           | 
          
             68% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1993, 1.5 x ambient ozone, total biomass 
           | 
          
             67% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1994, ambient ozone, seed yield 
           | 
          
             2% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1994, ambient ozone, total biomass 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1994, 1.5 x ambient ozone, seed yield 
           | 
          
             52% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1994, 1.5 x ambient ozone, total biomass 
           | 
          
             74% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1995, ambient ozone, seed yield 
           | 
          
             -6% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (1997)  | 
          
             open-top chambers, 1995, 1.5 x ambient ozone, seed yield 
           | 
          
             82% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (2007)  | 
          
             Seed biomass of well watered and fertilized plants grown from seed for one full growing season out-of-doors rooted in the ground and enclosed by open-top chambers 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (2007)  | 
          
             Seed biomass of well watered and fertilized plants grown from seed for one full growing season out-of-doors rooted in pots at equal plant densities per unit ground area and enclosed by open-top chambers 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (2007)  | 
          
             Stem biomass of well watered and fertilized plants grown from seed for one full growing season out-of-doors rooted in the ground and enclosed by open-top chambers 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Fiscus et al. (2007)  | 
          
             Stem biomass of well watered and fertilized plants grown from seed for one full growing season out-of-doors rooted in pots at equal plant densities per unit ground area and enclosed by open-top chambers 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Griffin et al. (1999)  | 
          
             controlled growth chambers 
           | 
          
             | 
          
             94%  | 
          
             | 
        
| 
             Hao et al. (2014)  | 
          
             Seed yield biomass of plants grown out-of-doors at the China Mini-FACE facility near Changping, Beijing under normal field conditions in 2009, as part of a wheat/soybean rotation 
           | 
          
             58% 
           | 
          
             
  | 
          
             | 
        
| 
             Hao et al. (2014)  | 
          
             Seed yield biomass of plants grown out-of-doors at the China Mini-FACE facility near Changping, Beijing under normal field conditions in 2011, as part of a wheat/soybean rotation 
           | 
          
             69% 
           | 
          
             
  | 
          
             | 
        
| 
             Havelka et al. (1984a)  | 
          
             field, open-top chambers 
           | 
          
             | 
          
             
  | 
          
             59% 
           | 
        
| 
             Havelka et al.. (1984b)  | 
          
             field, open-top chambers 
           | 
          
             | 
          
             
  | 
          
             86% 
           | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Essex cultivar, high ozone 
           | 
          
             70% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Holladay cultivar, low ozone 
           | 
          
             33% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Holladay cultivar, medium ozone 
           | 
          
             71% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Holladay cultivar, high ozone 
           | 
          
             80% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994,NK-6955 cultivar, low ozone 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994,NK-6955 cultivar, medium ozone 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994,NK-6955 cultivar, high ozone 
           | 
          
             33% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1993, Essex cultivar, low ozone 
           | 
          
             4% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1993, Essex cultivar, medium ozone 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1993, Essex cultivar, high ozone 
           | 
          
             68% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Essex cultivar, low ozone 
           | 
          
             25% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1998)  | 
          
             open-top chambers, seed weight, 1994, Essex cultivar, medium ozone 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1999)  | 
          
             open-top chambers, plants in the ground 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Heagle et al. (1999)  | 
          
             open-top chambers, plants in pots 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Heinemann et al. (2006)  | 
          
             Seed biomass of well-watered and fertilized plants grown from seed to maturity in pots in controlled environment chambers at a day/night temperature of 20/15°C 
           | 
          
             9% 
           | 
          
             
  | 
          
             | 
        
| 
             Heinemann et al. (2006)  | 
          
             Seed biomass of well-watered and fertilized plants grown from seed to maturity in pots in controlled environment chambers at a day/night temperature of 30/25°C 
           | 
          
             8% 
           | 
          
             
  | 
          
             | 
        
| 
             Hrubec et al. (1985)  | 
          
             pots (15-cm), growth chambers 
           | 
          
             | 
          
             33%  | 
          
             | 
        
| 
             Huber et al. (1984)  | 
          
             field 
           | 
          
             84% 
           | 
          
             
  | 
          
             | 
        
| 
             Huber et al. (1984)  | 
          
             field 
           | 
          
             67% 
           | 
          
             
  | 
          
             | 
        
| 
             Idso et al. (1987)  | 
          
             field, moderate temperature 
           | 
          
             100% 
           | 
          
             
  | 
          
             | 
        
| 
             Idso et al. (1987)  | 
          
             field, high temperature 
           | 
          
             160% 
           | 
          
             
  | 
          
             | 
        
| 
             Imai and Murata (1979)  | 
          
             Adequately watered plants grown from seed in pots containing 0.5 kg of soil and 2.5 g of chemical fertilizer for 10 to 15 days after emergence and then transferred to growth chambers for five additional days of growth at low light (27 lux) and at low day/night temperatures (23/20°C) 
           | 
          
             | 
          
             42%  | 
          
             | 
        
| 
             Imai and Murata (1979)  | 
          
             Adequately watered plants grown from seed in pots containing 0.5 kg of soil and 2.5 g of chemical fertilizer for 10 to 15 days after emergence and then transferred to growth chambers for five additional days of growth at low light (27 lux) and at high day/night temperatures (28/23°C) 
           | 
          
             | 
          
             62%  | 
          
             | 
        
| 
             Imai and Murata (1979)  | 
          
             Adequately watered plants grown from seed in pots containing 0.5 kg of soil and 2.5 g of chemical fertilizer for 10 to 15 days after emergence and then transferred to growth chambers for five additional days of growth at high light (48 lux) and at low day/night temperatures (23/20°C) 
           | 
          
             50% 
           | 
          
             
  | 
          
             | 
        
| 
             Imai and Murata (1979)  | 
          
             Adequately watered plants grown from seed in pots containing 0.5 kg of soil and 2.5 g of chemical fertilizer for 10 to 15 days after emergence and then transferred to growth chambers for five additional days of growth at high light (48 lux) and at high day/night temperatures (28/23°C) 
           | 
          
             | 
          
             74%  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Shoot biomass of well-watered and fertilized plants grown in pots in open-top chambers in soil with low (10.4 mg per g) organic carbon content; cv Suinong 14 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Shoot biomass of well-watered and fertilized plants grown in pots in open-top chambers in soil with low (10.4 mg per g) organic carbon content; cv Dongsheng 7 
           | 
          
             55% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Shoot biomass of well-watered and fertilized plants grown in pots in open-top chambers in soil with high (45.5 mg per g) organic carbon content; cv Suinong 14 
           | 
          
             40% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Shoot biomass of well-watered and fertilized plants grown in pots in open-top chambers in soil with high (45.5 mg per g) organic carbon content; cv Dongsheng 7 
           | 
          
             53% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Grain yield (g per plant) of well-watered and fertilized plants grown in pots in open-top chambers in soil with low (10.4 mg per g) organic carbon content; cv Suinong 14 
           | 
          
             19% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Grain yield (g per plant) of well-watered and fertilized plants grown in pots in open-top chambers in soil with low (10.4 mg per g) organic carbon content; cv Dongsheng 7 
           | 
          
             53% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Grain yield (g per plant) of well-watered and fertilized plants grown in pots in open-top chambers in soil with high (45.5 mg per g) organic carbon content; cv Suinong 14 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Jin et al. (2017)  | 
          
             Grain yield (g per plant) of well-watered and fertilized plants grown in pots in open-top chambers in soil with high (45.5 mg per g) organic carbon content; cv Dongsheng 7 
           | 
          
             61% 
           | 
          
             
  | 
          
             | 
        
| 
             Jones et al. (1984)  | 
          
             soil bins, growth chambers 
           | 
          
             40% 
           | 
          
             61%  | 
          
             | 
        
| 
             Juknys et al. (2011)  | 
          
             Aboveground biomass of plants grown from seed for 21 days after germination within controlled-environment chambers at a density of 25 plants per each of three 5-L pots per treatment filled with neutral (pH 6.0-6.5) peat substrate 
           | 
          
             21% 
           | 
          
             
  | 
          
             | 
        
| 
             Kanemoto et al. (2009)  | 
          
             Well watered and fertilized plants grown to the grain-filling stage in pots within a glasshouse and then transferred for six additional days to growth cabinets maintained at different air CO2 
           | 
          
             | 
          
             110%  | 
          
             | 
        
| 
             Kim et al. (2005)  | 
          
             Total biomass of plants grown from seed to maturity in pots of sandy loam soil placed within controlled environment chambers maintained at ambient temperature with no added nitrogen 
           | 
          
             99% 
           | 
          
             
  | 
          
             | 
        
| 
             Kim et al. (2005)  | 
          
             Total biomass of plants grown from seed to maturity in pots of sandy loam soil placed within controlled environment chambers maintained at ambient temperature and with an extra 40 kg N/ha 
           | 
          
             109% 
           | 
          
             
  | 
          
             | 
        
| 
             Kim et al. (2005)  | 
          
             Total biomass of plants grown from seed to maturity in pots of sandy loam soil placed within controlled environment chambers maintained at elevated temperature (Ambient + 5°C) with no added nitrogen 
           | 
          
             61% 
           | 
          
             
  | 
          
             | 
        
| 
             Kim et al. (2005)  | 
          
             Total biomass of plants grown from seed to maturity in pots of sandy loam soil placed within controlled environment chambers maintained at elevated temperature (Ambient + 5°C) and with an extra 40 kg N/ha 
           | 
          
             70% 
           | 
          
             
  | 
          
             | 
        
| 
             Kohler et al. (2019)  | 
          
             Seed yield at harvest in 2014 of plants grown in a FACE environment in Illinois, USA; cv Thorne 
           | 
          
             18% 
           | 
          
             
  | 
          
             | 
        
| 
             Kohler et al. (2019)  | 
          
             Seed yield at harvest in 2015 of plants grown in a FACE environment in Illinois, USA; cv Thorne 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Kohler et al. (2019)  | 
          
             Seed yield at harvest in 2014 of plants grown in a FACE environment in Illinois, USA, under a day/night temperature regime that was 2.7/3.4°C warmer (using infrared heaters) than ambient temperatures; cv Thorne 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Kohler et al. (2019)  | 
          
             Seed yield at harvest in 2015 of plants grown in a FACE environment in Illinois, USA, under a day/night temperature regime that was 2.7/3.4°C warmer (using infrared heaters) than ambient temperatures; cv Thorne 
           | 
          
             49% 
           | 
          
             
  | 
          
             | 
        
| 
             Koti et al. (2007)  | 
          
             Average biomass of six different genotypes grown from seed to maturity in 2.5-L pots in Soil-Plant-Atmosphere-Research (SPAR) units under well watered and fertilized conditions 
           | 
          
             18% 
           | 
          
             
  | 
          
             | 
        
| 
             Koti et al. (2007)  | 
          
             Greatest genotype responder of six different genotypes grown from seed to maturity in 2.5-L pots in Soil-Plant-Atmosphere-Research (SPAR) units under well watered and fertilized conditions 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Lam et al. (2012)  | 
          
             Above-ground biomass of adequately fertilized and irrigated plants of a high-protein cultivar (Zhonghuang 13) grown from seed to maturity at a FACE facility in Changping, Beijing, China 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Lam et al. (2012)  | 
          
             Below-ground biomass of adequately fertilized and irrigated plants of a high-protein cultivar (Zhonghuang 13) grown from seed to maturity at a FACE facility in Changping, Beijing, China 
           | 
          
             25% 
           | 
          
             
  | 
          
             | 
        
| 
             Lam et al. (2012)  | 
          
             Above-ground biomass of adequately fertilized and irrigated plants of a high-protein cultivar (Zhonghuang 35) grown from seed to maturity at a FACE facility in Changping, Beijing, China 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Lam et al. (2012)  | 
          
             Below-ground biomass of adequately fertilized and irrigated plants of a high-protein cultivar (Zhonghuang 35) grown from seed to maturity at a FACE facility in Changping, Beijing, China 
           | 
          
             44% 
           | 
          
             
  | 
          
             | 
        
| 
             Lee et al. (1997)  | 
          
             open-top chambers 
           | 
          
             27% 
           | 
          
             
  | 
          
             | 
        
| 
             Lee et al. (1997)  | 
          
             open-top chambers, low SO2 
           | 
          
             65% 
           | 
          
             
  | 
          
             | 
        
| 
             Lee et al. (1997)  | 
          
             open-top chambers, high SO2 
           | 
          
             2% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2017)  | 
          
             Grain yield at harvest of well-fertilized and rain-fed plants grown outdoors in open-top chambers under ambient air temperatures; cv JS-20-29 
           | 
          
             102% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2017)  | 
          
             Grain yield at harvest of well-fertilized and rain-fed plants grown outdoors in open-top chambers under elevated air temperatures (ambient plus 2°C); cv JS-20-29 
           | 
          
             53% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2019)  | 
          
             Seed yield of plants grown in the field in open-top chambers without soil nitrogen application; cv JS-20-29 
           | 
          
             84% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2019)  | 
          
             Seed yield of plants grown in the field in open-top chambers with a soil nitrogen application that was 50% of the recommended dose; cv JS-20-29 
           | 
          
             126% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2019)  | 
          
             Seed yield of plants grown in the field in open-top chambers with a soil nitrogen application that was 100% of the recommended dose; cv JS-20-29 
           | 
          
             109% 
           | 
          
             
  | 
          
             | 
        
| 
             Lenka et al. (2019)  | 
          
             Seed yield of plants grown in the field in open-top chambers with a soil nitrogen application that was 150% of the recommended dose; cv JS-20-29 
           | 
          
             56% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Xiaohuangjin 
           | 
          
             163% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 14 
           | 
          
             121% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 8 
           | 
          
             93% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Heinong 45 
           | 
          
             41% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 22 
           | 
          
             61% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Hejiao 6 
           | 
          
             76% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 9 
           | 
          
             74% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Shoot dry weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 1 
           | 
          
             59% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Xiaohuangjin 
           | 
          
             171% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 14 
           | 
          
             116% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 8 
           | 
          
             64% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Heinong 45 
           | 
          
             34% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 22 
           | 
          
             62% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Hejiao 6 
           | 
          
             65% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 9 
           | 
          
             65% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2017)  | 
          
             Seed yield weight at harvest (120 days after sowing) of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 1 
           | 
          
             23% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 8 
           | 
          
             150% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Mufeng 5 
           | 
          
             128% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Fengshou 17 
           | 
          
             87% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Dongsheng 1 
           | 
          
             61% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Fengshou 10 
           | 
          
             42% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Dongsheng 7 
           | 
          
             46% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Beifeng 3 
           | 
          
             78% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 22 
           | 
          
             40% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Xiaohuangjin 
           | 
          
             71% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 4 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Heinong 27 
           | 
          
             77% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Heinong 45 
           | 
          
             54% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Heinong 16 
           | 
          
             37% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 3 
           | 
          
             45% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Zihua 4 
           | 
          
             46% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 4 
           | 
          
             43% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Dongnong 4 
           | 
          
             50% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 14 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Dongsheng 8 
           | 
          
             43% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Nenfeng 1 
           | 
          
             17% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 10 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Suinong 15 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Yuanbaojin 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Li et al. (2019)  | 
          
             Seed yield at harvest of well-watered and fertilized plants grown in pots in open-top chambers; cv Silijia 
           | 
          
             12% 
           | 
          
             
  | 
          
             | 
        
| 
             Lincoln et al. (1984)  | 
          
             greenhouse, growth chambers 
           | 
          
             19% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 35 days after sowing (DAS); cv. Enrei 
           | 
          
             44% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 69 days after sowing (DAS); cv. Enrei 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 35 days after sowing (DAS); cv. Kanto 100 
           | 
          
             26% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 69 days after sowing (DAS); cv. Kanto 100 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 35 days after sowing (DAS); cv. En1282 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Matsunami et al. (2009)  | 
          
             Well watered and fertilized plants grown from seed in pots within temperature-gradient chambers at elevated (ambient +4.5°C) air temperature (T), measured at 69 days after sowing (DAS); cv. En1282 
           | 
          
             -6% 
           | 
          
             
  | 
          
             | 
        
| 
             Miglietta et al. (1993)  | 
          
             Plants grown from seed to maturity in pots with 10 dm3 soil near a CO2-emitting spring 
           | 
          
             85% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, low ozone, 15 days after planting 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, medium ozone, 15 days after planting 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, high ozone, 15 days after planting 
           | 
          
             27% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, low ozone, 43 days after planting 
           | 
          
             47% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, medium ozone, 43 days after planting 
           | 
          
             63% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, high ozone, 43 days after planting 
           | 
          
             65% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, low ozone, 57 days after planting 
           | 
          
             55% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, medium ozone, 57 days after planting 
           | 
          
             80% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, high ozone, 57 days after planting 
           | 
          
             89% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, low ozone, 113 days after planting 
           | 
          
             42% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, medium ozone, 113 days after planting 
           | 
          
             48% 
           | 
          
             
  | 
          
             | 
        
| 
             Miller et al. (1998)  | 
          
             open top chamber, high ozone, 113 days after planting 
           | 
          
             66% 
           | 
          
             
  | 
          
             | 
        
| 
             Miyagi et al. (2007)  | 
          
             N-fixing root nodule biomass of well watered and fertilized plants (legumes) grown from seed to maturity in 4-liter pots filled with sand out-of-doors in open-top chambers 
           | 
          
             124% 
           | 
          
             
  | 
          
             | 
        
| 
             Miyagi et al. (2007)  | 
          
             Seed or grain yield biomass of well watered and fertilized plants grown from seed to maturity in 4-liter pots filled with sand out-of-doors in open-top chambers 
           | 
          
             70% 
           | 
          
             
  | 
          
             | 
        
| 
             Miyagi et al. (2007)  | 
          
             Whole plant biomass (at flowering) of well watered and fertilized plants grown from seed in 4-liter pots filled with sand out-of-doors in open-top chambers to the time of their natural death 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Miyagi et al. (2007)  | 
          
             Whole plant biomass (at time of death) of well watered and fertilized plants grown from seed in 4-liter pots filled with sand out-of-doors in open-top chambers to the time of their natural death 
           | 
          
             52% 
           | 
          
             
  | 
          
             | 
        
| 
             Morgan et al. (2005)  | 
          
             Seed yield of plants grown for three different years under normal field conditions and agricultural practices at Urbana-Champaign, Illinois, USA, in a FACE study where CO2 was supplied from sunrise to sunset 
           | 
          
             25% 
           | 
          
             
  | 
          
             | 
        
| 
             Morison and Gifford (1984)  | 
          
             pots (3.2 kg soil) 
           | 
          
             4% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamoto et al. (2004)  | 
          
             First year seed biomass of well-watered and fertilized plants grown from seed in pots in growth chambers 
           | 
          
             11% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamoto et al. (2004)  | 
          
             Second year seed biomass of well-watered and fertilized plants grown from seed in pots in growth chambers 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamura et al. (1999)  | 
          
             growth cabinets, nodulated plants, no nitrogen 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamura et al. (1999)  | 
          
             growth cabinets, nodulated plants, elevated nitrogen 
           | 
          
             77% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamura et al. (1999)  | 
          
             growth cabinets, non-nodulated plants, no nitrogen 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Nakamura et al. (1999)  | 
          
             growth cabinets, non-nodulated plants, elevated nitrogen 
           | 
          
             50% 
           | 
          
             
  | 
          
             | 
        
| 
             Oikawa et al. (2010)  | 
          
             Stem biomass of well watered and fertilized plants grown from seed to maturity -- one to each 4-L pot filled with soil collected from a rice paddy -- within temperature-controlled greenhouse chambers 
           | 
          
             37% 
           | 
          
             
  | 
          
             | 
        
| 
             Oikawa et al. (2010)  | 
          
             Root biomass of well watered and fertilized plants grown from seed to maturity -- one to each 4-L pot filled with soil collected from a rice paddy -- within temperature-controlled greenhouse chambers 
           | 
          
             40% 
           | 
          
             
  | 
          
             | 
        
| 
             Oikawa et al. (2010)  | 
          
             Pod biomass of well watered and fertilized plants grown from seed to maturity -- one to each 4-L pot filled with soil collected from a rice paddy -- within temperature-controlled greenhouse chambers 
           | 
          
             47% 
           | 
          
             
  | 
          
             | 
        
| 
             Oikawa et al. (2010)  | 
          
             Seed biomass of well watered and fertilized plants grown from seed to maturity -- one to each 4-L pot filled with soil collected from a rice paddy -- within temperature-controlled greenhouse chambers 
           | 
          
             52% 
           | 
          
             
  | 
          
             | 
        
| 
             Oikawa et al. (2010)  | 
          
             Nodule biomass of well watered and fertilized plants grown from seed to maturity -- one to each 4-L pot filled with soil collected from a rice paddy -- within temperature-controlled greenhouse chambers 
           | 
          
             55% 
           | 
          
             
  | 
          
             | 
        
| 
             Palacios et al. (2019)  | 
          
             Grain biomass at harvest of well-watered and fertilized plants grown in open-top chambers under ambient temperature conditions; cv MG/BR Conquista 
           | 
          
             | 
          
             40%  | 
          
             | 
        
| 
             Palacios et al. (2019)  | 
          
             Grain biomass at harvest of well-watered and fertilized plants grown in open-top chambers under elevated temperature conditions (ambient +4°C); cv MG/BR Conquista 
           | 
          
             | 
          
             39%  | 
          
             | 
        
| 
             Patterson et al. (1984)  | 
          
             pots (0.75 liter), growth chambers 
           | 
          
             39% 
           | 
          
             
  | 
          
             | 
        
| 
             Peet (1984)  | 
          
             pots 
           | 
          
             | 
          
             23%  | 
          
             | 
        
| 
             Prevost et al. (2010)  | 
          
             Shoot biomass of plants (cultivar Lotus) grown from seed for six weeks in pots filled with a sandy loam soil, watered and fertilized as per standard procedures, and inoculated with a reference strain of the nitrogen-fixing bacteria Bradyrhizobium japonicum widely used in commercial operations in Canada (532c) 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Prevost et al. (2010)  | 
          
             Root nodule biomass of plants (cultivar Lotus) grown from seed for six weeks in pots filled with a sandy loam soil, watered and fertilized as per standard procedures, and inoculated with a reference strain of the nitrogen-fixing bacteria Bradyrhizobium japonicum widely used in commercial operations in Canada (532c) 
           | 
          
             36% 
           | 
          
             
  | 
          
             | 
        
| 
             Prevost et al. (2010)  | 
          
             Shoot biomass of plants (cultivar Lotus) grown from seed for six weeks in pots filled with a sandy loam soil, watered and fertilized as per standard procedures, and inoculated with a strain of the nitrogen-fixing bacteria Bradyrhizobium japonicum indigenous to soils of Quebec, Canada (12NS14) 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Prevost et al. (2010)  | 
          
             Root nodule biomass of plants (cultivar Lotus) grown from seed for six weeks in pots filled with a sandy loam soil, watered and fertilized as per standard procedures, and inoculated with a strain of the nitrogen-fixing bacteria Bradyrhizobium japonicum indigenous to soils of Quebec, Canada (12NS14) 
           | 
          
             75% 
           | 
          
             
  | 
          
             | 
        
| 
             Prior et al. (2005)  | 
          
             Plants grown from seed to maturity for two cropping cycles within open-top chambers constructed upon 7-m x 76-m x 2-m-deep soil bins filled with a reconstructed Decatur silt loam; first cropping cycle 
           | 
          
             39% 
           | 
          
             
  | 
          
             | 
        
| 
             Prior et al. (2005)  | 
          
             Grain yield of plants grown from seed to maturity for two cropping cycles within open-top chambers constructed upon 7-m x 76-m x 2-m-deep soil bins filled with a reconstructed Decatur silt loam; second cropping cycle 
           | 
          
             51% 
           | 
          
             
  | 
          
             | 
        
| 
             Prior et al. (2005)  | 
          
             Residue biomass of plants grown from seed to maturity for two cropping cycles within open-top chambers constructed upon 7-m x 76-m x 2-m-deep soil bins filled with a reconstructed Decatur silt loam; two cropping cycle 
           | 
          
             48% 
           | 
          
             
  | 
          
             | 
        
| 
             Reddy et al. (1989)  | 
          
             bins, growth chambers, total seasonal CO2 fixation 
           | 
          
             21% 
           | 
          
             69%  | 
          
             | 
        
| 
             Rogers et al. (1983)  | 
          
             pots (15.5 liter), field, open-top chambers 
           | 
          
             42% 
           | 
          
             96%  | 
          
             | 
        
| 
             Rogers et al. (1983)  | 
          
             pots (16.5 liter), field, open-top chambers 
           | 
          
             79% 
           | 
          
             86%  | 
          
             | 
        
| 
             Rogers et al. (1984)  | 
          
             pots (16.5 liter) 
           | 
          
             31% 
           | 
          
             40%  | 
          
             | 
        
| 
             Rogers et al. (1986)  | 
          
             field, water-stressed 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Rogers et al. (1986)  | 
          
             field, well-watered 
           | 
          
             0% 
           | 
          
             
  | 
          
             | 
        
| 
             Rogers et al. (2006)  | 
          
             Plants grown for two entire seasons without nitrogen (N) fertilization from germination to final senescence under normal climatic conditions at the SoyFACE facility in Champaign, Illinois, USA 
           | 
          
             26% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2012 growing season; cv HS93-4118 
           | 
          
             20% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2012 growing season; cv Loda 
           | 
          
             38% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2013 growing season; cv HS93-4118 
           | 
          
             33% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2013 growing season; cv Loda 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2014 growing season; cv HS93-4118 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Sanz-Sáez et al. (2017)  | 
          
             Seed yield of FACE-grown from the 2014 growing season; cv Loda 
           | 
          
             39% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj et al. (1999)  | 
          
             Grown from seed in 10-cm diameter x 30-cm deep pots in glasshouses for two weeks; Well-watered 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj et al. (1999)  | 
          
             Grown from seed in 10-cm diameter x 30-cm deep pots in glasshouses for two weeks; Well-watered 
           | 
          
             9% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj et al. (1999)  | 
          
             Grown from seed in 10-cm diameter x 30-cm deep pots in glasshouses for two weeks; Water-stressed 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj et al. (1999)  | 
          
             Grown from seed in 10-cm diameter x 30-cm deep pots in glasshouses for two weeks; Water-stressed 
           | 
          
             26% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, shoot, 0 mM ureide 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, shoot, 5 mM ureide 
           | 
          
             1% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, shoot, 10 mM ureide 
           | 
          
             31% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, root, 0 mM ureide 
           | 
          
             -7% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, root, 5 mM ureide 
           | 
          
             12% 
           | 
          
             
  | 
          
             | 
        
| 
             Serraj and Sinclair (2003)  | 
          
             glasshouse, hydroponics, root, 10 mM ureide 
           | 
          
             15% 
           | 
          
             
  | 
          
             | 
        
| 
             Shimono et al. (2012)  | 
          
             Above-ground biomass of two-week-old plants grown from seed for two additional weeks at Tsukuba (Japan), one to each 4-L pot, in soil inoculated with Rhizobium within sunlit temperature-gradient chambers under normal moisture (NM) conditions 
           | 
          
             26% 
           | 
          
             
  | 
          
             | 
        
| 
             Shimono et al. (2012)  | 
          
             Above-ground biomass of two-week-old plants grown from seed for two additional weeks at Tsukuba (Japan), one to each 4-L pot, in soil inoculated with Rhizobium within sunlit temperature-gradient chambers under water-logged (WL) conditions 
           | 
          
             24% 
           | 
          
             
  | 
          
             | 
        
| 
             Shimono et al. (2012)  | 
          
             Root biomass of two-week-old plants grown from seed for two additional weeks at Tsukuba (Japan), one to each 4-L pot, in soil inoculated with Rhizobium within sunlit temperature-gradient chambers under normal moisture (NM) conditions 
           | 
          
             23% 
           | 
          
             
  | 
          
             | 
        
| 
             Shimono et al. (2012)  | 
          
             Root biomass of two-week-old plants grown from seed for two additional weeks at Tsukuba (Japan), one to each 4-L pot, in soil inoculated with Rhizobium within sunlit temperature-gradient chambers under water-logged (WL) conditions 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Sicher et al. (2010)  | 
          
             Well watered and fertilized plants of a dwarf (MiniMax) variety grown from seed to maturity within controlled-environment chambers in pots filled with vermiculite 
           | 
          
             | 
          
             46%  | 
          
             | 
        
| 
             Sicher et al. (2010)  | 
          
             Well watered and fertilized plants of a normal-sized (Fiskeby) variety grown from seed to maturity within controlled-environment chambers in pots filled with vermiculite 
           | 
          
             | 
          
             193%  | 
          
             | 
        
| 
             Singh and Reddy (2017)  | 
          
             Total dry matter at maturity (112 days after planting) of plants grown in controlled environment chambers under normal (control) levels of potassium (5.00 mM K); cv Spencer 
           | 
          
             18% 
           | 
          
             
  | 
          
             | 
        
| 
             Singh and Reddy (2017)  | 
          
             Total dry matter at maturity (112 days after planting) of plants grown in controlled environment chambers under deficient levels of potassium (0.50 mM K); cv Spencer 
           | 
          
             48% 
           | 
          
             
  | 
          
             | 
        
| 
             Singh and Reddy (2017)  | 
          
             Total dry matter at maturity (112 days after planting) of plants grown in controlled environment chambers under super deficient levels of potassium (0.02 mM K); cv Spencer 
           | 
          
             22% 
           | 
          
             
  | 
          
             | 
        
| 
             Sionit (1983)  | 
          
             pots (5 liter), low nutrient 
           | 
          
             93% 
           | 
          
             
  | 
          
             | 
        
| 
             Sionit (1983)  | 
          
             pots (5 liter), high nutrient 
           | 
          
             114% 
           | 
          
             
  | 
          
             | 
        
| 
             Sionit et al. (1987a)  | 
          
             pots (3.5 liter), air temperature 15°C 
           | 
          
             65% 
           | 
          
             130%  | 
          
             | 
        
| 
             Sionit et al. (1987a)  | 
          
             pots (3.5 liter), air temperature 19°C 
           | 
          
             35% 
           | 
          
             55%  | 
          
             | 
        
| 
             Sionit et al. (1987a)  | 
          
             pots (3.5 liter), air temperature 23°C 
           | 
          
             53% 
           | 
          
             123%  | 
          
             | 
        
| 
             Sionit et al. (1987b)  | 
          
             pots (3.5 liter), air temperature 15°C 
           | 
          
             0% 
           | 
          
             0%  | 
          
             | 
        
| 
             Sionit et al. (1987b)  | 
          
             pots (3.5 liter), air temperature 19°C 
           | 
          
             5% 
           | 
          
             55%  | 
          
             | 
        
| 
             Sionit et al. (1987b)  | 
          
             pots (3.5 liter), air temperature 23°C 
           | 
          
             42% 
           | 
          
             45%  | 
          
             | 
        
| 
             Teramura et al. (1990)  | 
          
             pots (0.5 liter to 20 liter) 
           | 
          
             29% 
           | 
          
             
  | 
          
             | 
        
| 
             Torbert et al. (2004)  | 
          
             Plants grown from seed to physiological maturity in 1992, 1993 and 1994 within open-top chambers resting upon huge soil bins in which the plants were rooted; mean whole plant biomass of all three years 
           | 
          
             34% 
           | 
          
             
  | 
          
             | 
        
| 
             Vu et al. (1988)  | 
          
             pots (10-cm), growth chambers 
           | 
          
             46% 
           | 
          
             75%  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Aboveground biomass at harvest of well-watered (soil water content of 60-80% of relative water content) and fertilized plants grown in open-top chambers in 2013; cv Zhonghuang 35 
           | 
          
             16% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Aboveground biomass at harvest of water-stressed (soil water content of 35-45% of relative water content) and fertilized plants grown in open-top chambers in 2013; cv Zhonghuang 35 
           | 
          
             6% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Aboveground biomass at harvest of well-watered (soil water content of 60-80% of relative water content) and fertilized plants grown in open-top chambers in 2014; cv Zhonghuang 35 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Aboveground biomass at harvest of water-stressed (soil water content of 35-45% of relative water content) and fertilized plants grown in open-top chambers in 2014; cv Zhonghuang 35 
           | 
          
             144% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Seed yield at harvest of well-watered (soil water content of 60-80% of relative water content) and fertilized plants grown in open-top chambers in 2013; cv Zhonghuang 35 
           | 
          
             5% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Seed yield at harvest of water-stressed (soil water content of 35-45% of relative water content) and fertilized plants grown in open-top chambers in 2013; cv Zhonghuang 35 
           | 
          
             2% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Seed yield at harvest of well-watered (soil water content of 60-80% of relative water content) and fertilized plants grown in open-top chambers in 2014; cv Zhonghuang 35 
           | 
          
             31% 
           | 
          
             
  | 
          
             | 
        
| 
             Wang et al. (2018)  | 
          
             Seed yield at harvest of water-stressed (soil water content of 35-45% of relative water content) and fertilized plants grown in open-top chambers in 2014; cv Zhonghuang 35 
           | 
          
             145% 
           | 
          
             
  | 
          
             | 
        
| 
             Wong (1990)  | 
          
             pots (5 liters), 24 mM NO3- 
           | 
          
             111% 
           | 
          
             
  | 
          
             | 
        
| 
             Wong (1990)  | 
          
             pots (5 liters), 12 mM NO3- 
           | 
          
             229% 
           | 
          
             
  | 
          
             | 
        
| 
             Wong (1990)  | 
          
             pots (5 liters), 4 mM NO3- 
           | 
          
             144% 
           | 
          
             
  | 
          
             | 
        
| 
             Wong (1990)  | 
          
             pots (5 liters), 0.06 mM NO3- 
           | 
          
             89% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2013; cv Lamar 
           | 
          
             13% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2013; cv JLNMH 
           | 
          
             3% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2014; cv Lamar 
           | 
          
             21% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2014; cv JLNMH 
           | 
          
             17% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2015; cv Lamar 
           | 
          
             13% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Seed weight at harvest of well-watered and fertilized plants grown in open-top chambers in 2015; cv JLNMH 
           | 
          
             9% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Total biomass at the R6 stage (i.e., full seeds) of well-watered and fertilized plants grown in open-top chambers, averaged for 3 growing seasons (2013-2015); cv Lamar 
           | 
          
             13% 
           | 
          
             
  | 
          
             | 
        
| 
             Zhang et al. (2018)  | 
          
             Total biomass at the R6 stage (i.e., full seeds) of well-watered and fertilized plants grown in open-top chambers, averaged for 3 growing seasons (2013-2015); cv JLNMH 
           | 
          
             15% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska (1998)  | 
          
             controlled environment, temperature 25°C 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska (1998)  | 
          
             controlled environment, temperature 30°C 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska (2010)  | 
          
             Total biomass of plants grown from seed to maturity over three sequential years in partially (one-third) open-top chambers in the field near Beltsville, Maryland, USA, with no tillage and 100% weed control 
           | 
          
             32% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska (2010)  | 
          
             Seed yield of plants grown from seed to maturity over three sequential years in partially (one-third) open-top chambers in the field near Beltsville, Maryland, USA, with no tillage and 100% weed control (range of yield was 18 to 42% increase) 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Bunce (2000)  | 
          
             modified open-top chambers, Spencer cultivar 
           | 
          
             132% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Bunce (2000)  | 
          
             modified open-top chambers, Spencer cultivar, yield 
           | 
          
             60% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Bunce (2000)  | 
          
             modified open-top chambers, Ripley cultivar 
           | 
          
             65% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Bunce (2000)  | 
          
             modified open-top chambers, Ripley cultivar, yield 
           | 
          
             35% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Goins (2006)  | 
          
             Seed biomass of genetically modified (Round-up Ready) soybean plants grown in the field within aluminum chambers for two full growing seasons under conditions - both environmental and managerial, including herbicide (glyphosate) application - that led to a variety of different weed densities (gm-2) developing among the soybean plants, including 0 gm-2 
           | 
          
             30% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Goins (2006)  | 
          
             Seed biomass of genetically modified (Round-up Ready) soybean plants grown in the field within aluminum chambers for two full growing seasons under conditions - both environmental and managerial, including herbicide (glyphosate) application - that led to a variety of different weed densities (gm-2) developing among the soybean plants, including 200 gm-2 
           | 
          
             40% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Goins (2006)  | 
          
             Seed biomass of genetically modified (Round-up Ready) soybean plants grown in the field within aluminum chambers for two full growing seasons under conditions - both environmental and managerial, including herbicide (glyphosate) application - that led to a variety of different weed densities (gm-2) developing among the soybean plants, including 400 gm-2 
           | 
          
             60% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Goins (2006)  | 
          
             Seed biomass of genetically modified (Round-up Ready) soybean plants grown in the field within aluminum chambers for two full growing seasons under conditions - both environmental and managerial, including herbicide (glyphosate) application - that led to a variety of different weed densities (gm-2) developing among the soybean plants, including 600 gm-2 
           | 
          
             100% 
           | 
          
             
  | 
          
             | 
        
| 
             Ziska and Goins (2006)  | 
          
             Seed biomass of genetically modified (Round-up Ready) soybean plants grown in the field within aluminum chambers for two full growing seasons under conditions - both environmental and managerial, including herbicide (glyphosate) application - that led to a variety of different weed densities (gm-2) developing among the soybean plants, including 800 gm-2 
           | 
          
             300% 
           | 
          
             
  | 
          
             |