Acock, B., Reddy, V.R., Hodges, H.F., Baker, D.N. and McKinion, J.M. 1985. Photosynthetic response of soybean canopies to full-season carbon dioxide enrichment. Agronomy Journal 77: 942-947.

Ainsworth, E.A., Rogers, A., Leakey, A.D.B., Heady, L.E., Gibon, Y., Stitt, M. and Schurr, U. 2007. Does elevated atmospheric [CO2] alter diurnal C uptake and the balance of C and N metabolites in growing and fully expanded soybean leaves? Journal of Experimental Botany 58: 579-591.

Ainsworth, E.A., Rogers, A., Nelson, R. and Long, S.P. 2004. Testing the "source-sink" hypothesis of down-regulation of photosynthesis in elevated [CO2] in the field with single gene substitutions in Glycine max. Agricultural and Forest Meteorology 122: 85-94.

Ayub, G., Zaragoza-Castells, J., Griffin, K.L. and Atkin, O.K. 2014. Leaf respiration in darkness and in the light under pre-industrial, current and elevated atmospheric CO2 concentrations. Plant Science 226: 120-130.

Bencke-Malato, M., De Souza, A.P., Ribeiro-Alves, M., Schmitz, J.F., Buckeridge, M.S. and Alves-Ferreira, M. 2019. Short-term responses of soybean roots to individual and combinatorial effects of elevated [CO2] and water deficit. Plant Science 280: 283-296.

Bernacchi, C.J., Kimball, B.A., Quarles, D.R., Long, S.P. and Ort, D.R. 2007. Decreases in stomatal conductance of soybean under open-air elevation of [CO2] are closely coupled with decreases in ecosystem evapotranspiration. Plant Physiology 143: 134-144.

Bernacchi, C.J., Leakey, A.D.B., Heady, L.E., Morgan, P.B., Dohleman, F.G., McGrath, J.M., Gillespie, K.M., Wittig, V.E., Rogers, A., Long, S.P. and Ort, D.R. 2006. Hourly and seasonal variation in photosynthesis and stomatal conductance of soybean grown at future CO2 and ozone concentrations for 3 years under fully open-air field conditions. Plant, Cell and Environment 10.1111/j.1365-3040.2006.01581.x

Bernacchi, C.J., Morgan, P.B., Ort, D.R. and Long, S.P. 2005. The growth of soybean under free air [CO2] enrichment (FACE) stimulates photosynthesis while decreasing in vivo Rubisco capacity. Planta 220: 434-446.

Booker, F.L. and Fiscus, E.L. 2005. The role of ozone flux and antioxidants in the suppression of ozone injury by elevated CO2 in soybean. Journal of Experimental Botany 56: 2139-2151.

Booker, F.L., Miller, J.E., Fiscus, E.L., Pursley, W.A. and Stefanski, L.A. 2005. Comparative responses of container- versus ground-grown soybean to elevated carbon dioxide and ozone. Crop Science 45: 883-895.

Braga, M.R., Aidar, M.P.M., Marabesi, M.A. and de Godoy, J.R.L. 2006. Effects of elevated CO2 on the phytoalexin production of two soybean cultivars differing in the resistance to stem canker disease. Environmental and Experimental Botany 58: 85-92.

Breen, P.J., Hesketh, J.D. and Peters, D.B. 1986. Field measurements of leaf photosynthesis of C3 and C4 species under high irradiance and enriched CO2. Photosynthetica 20: 281-285.

Bunce, J.A. 1995. Effects of elevated carbon dioxide concentration in the dark on the growth of soybean seedlings. Annals of Botany 75: 365-368.

Bunce, J.A. 2005a. Response of respiration of soybean leaves grown at ambient and elevated carbon dioxide concentrations to day-to-day variation in light and temperature under field conditions. Annals of Botany 95: 1059-1066.

Bunce, J.A. 2005b. Seed yield of soybeans with daytime or continuous elevation of carbon dioxide under field conditions. Photosynthetica 43: 435-438.

Bunce, J.A. 2014. Limitations to soybean photosynthesis at elevated carbon dioxide in free-air enrichment and open top systems. Plant Science 226: 131-135.

Bunce, J.A. and Nasyrov, M. 2012. A new method of applying a controlled soil water stress, and its effect on the growth of cotton and soybean seedlings at ambient and elevated carbon dioxide. Environmental and Experimental Botany 77: 165-169.

Bunce, J.A. and Zizka, L.H. 1999. Impact of measurement irradiance on acclimation of photosynthesis to elevated CO2 concentration in several plant species. Photosynthetica 37: 509-517.

Campbell, W.J., Allen, L.H., Jr. and Bowes, G. 1988. Effects of CO2 concentration on Rubisco activity, amount, and photosynthesis in soybean leaves. Plant Pyhsiology 88: 1310-1316.

Campbell, W.J., Allen, L.H., Jr., and Bowes, G. 1990. Response of soybean canopy photosynthesis to CO2 concentration, light, and temperature. Journal of Experimental Botany 41: 427-433.

Chen, X.M., Begonia, G.B., Alm, D.M. and Hesketh, J.D. 1993. Responses of soybean leaf photosynthesis to CO2 and drought. Photosynthetica 29: 447-454.

Chen, X.M., Begonia, G.B. and Hesketh, J.D. 1995. Soybean stomatal acclimation to long-term exposure to CO2-enriched atmospheres. Photosynthetica 31: 51-57.

Cure, J.D., Rufty Jr., T.W. and Israel, D.W. 1989. Alterations in soybean leaf development and photosynthesis in a CO2-enriched atmosphere. Botanical Gazette 150: 337-345.

Dermody, O., Long, S.P. and DeLucia, E.H. 2006. How does elevated CO2 or ozone affect the leaf-area index of soybean when applied independently? New Phytologist 169: 145-155.

Ferris, R., Wheeler, T.R., Hadley, P. and Ellis, R.H. Recovery of photosynthesis after environmental stress in soybean grown under elevated CO2. Crop Science 38: 948-955.

Gillespie, K.M., Xu, F., Richter, K.T., McGrath, J.M., Markelz, R.J.C., Ort, D.R., Leakey, A.D.B. and Ainsworth,l E.A. 2012. Greater antioxidant and respiratory metabolism in field-grown soybean exposed to elevated O3 under both ambient and elevated CO2. Plant, Cell and Environment 35: 169-184.

Griffin, K.L., Sims, D.A. and Seemann, J.R. 1999. Altered night-time CO2 concentration affects the growth, physiology and biochemistry of soybean. Plant, Cell and Environment 22: 91-99.

Griffin, K.L. and Luo, Y. 1999. Sensitivity and acclimation of Glycine max (L.) Merr. leaf gas exchange to CO2 partial pressure. Environmental and Experimental Botany 42: 141-153.

Hesketh, J.D., Woolley, J.T. and Peters, D.B. 1984. Leaf photosynthetic CO2 exchange rates in light and CO2 enriched environments. Photosynthetica 18: 536-540.

Huber, S.C., Rogers, H. and Israel, D.W. 1984. Effects of CO2 enrichment on photosynthesis and photosynthate partitioning in soybean (Glycine max) leaves. Physiologia Plantarum 62: 95-101.

Jones, P., Allen, L.H., Jr., and Jones, J.W. 1985. Responses of soybean canopy photosynthesis and transpiration to whole-day temperature changes in different CO2 environments. Agronomy Journal 77: 242-249.

Kanemoto, K., Yamashita, Y., Ozawa, T., Imanishi, N., Nguyen, N.T., Suwa, R., Mohapatra, P.K., Kanai, S., Moghaieb, R.E., Ito, J., El-Shemy, H. and Fujita, K. 2009. Photosynthetic acclimation to elevated CO2 is dependent on N partitioning and transpiration in soybean. Plant Science 177: 398-403.

Koti, S., Reddy, K.R., Kakani, V.G., Zhao, D. and Gao, W. 2007. Effects of carbon dioxide, temperature and ultraviolet-B radiation and their interactions on soybean (Glycine max L.) growth and development. Environmental and Experimental Botany 60: 1-10.

Kretzschmar, F. d S., Aidar, M.P.M., Salgado, I. and Braga, M.R. 2009. Elevated CO2 atmosphere enhances production of defense-related flavonoids in soybean elicited by NO and a fungal elicitor. Environmental and Experimental Botany 65: 319-329.

Lee, E.H., Pausch, R.C., Rowland, R.A., Mulchi, C.L. and Rudorff, B.F.T. 1997. Responses of field-grown soybean (cv. Essex) to elevated SO2 under two atmospheric CO2 concentrations. Environmental and Experimental Botany 37: 85-93.

Li, D., Liu, H., Qiao, Y., Wang, Y., Cai, Z., Dong, B., Shi, C., Liu, Y., Li, X. and Liu, M. 2013b. Effects of elevated CO2 on the growth, seed yield, and water use efficiency of soybean (Glycine max (L.) Merr.) under drought stress. Agricultural Water Management 129: 105-112.

Li, D., Liu, H., Qiao, Y., Wang, Y., Dong, B., Cai, Z., Shi, C., Liu, Y., Li, X. and Liu, M. 2013a. Physiological regulation of soybean (Glycine max L. Merr.) growth in response to drought under elevated CO2. Journal of Food, Agriculture & Environment 11: 649-654.

Matsunami, T., Otera, M., Amemiya, S., Kokubun, M. and Okada, M. 2009. Effect of CO2 concentration, temperature and N fertilization on biomass production of soybean genotypes differing in N fixation capacity. Plant Production Science 12: 156-167.

Patterson, D.T., Flint, E.P. and Beyers, J.L. 1984. Effects of CO2 enrichment on competition between a C4 weed and a C3 crop. Weed Science 32: 101-105.

Prior, S.A., Runion, G.B., Rogers, H.H. and Arriaga, F.J. 2010. Elevated atmospheric carbon dioxide effects on soybean and sorghum gas exchange in conventional and no-tillage systems. Journal of Environmental Quality 39: 596-608.

Qiu, Q.-S., Huber, J.L., Booker, F.L., Jain, V., Leakey, A.D.B., Fiscus, E.L., Yau, P.M., Ort, D.R. and Huber, S.C. 2008. Increased protein carbonylation in leaves of Arabido-psis and soybean in response to elevated [CO2]. Photosynthesis Research 97: 155-166.

Rogers, A., Allen, D.J., Davey, P.A., Morgan, P.B., Ainsworth, E.A., Bernacchi, C.J., Cornic, G., Dermody, O., Dohleman, F.G., Heaton, E.A., Mahoney, J., Zhu, X.-G., DeLucia, E.H., Ort, D.R. and Long, S.P. 2004. Leaf photosynthesis and carbohydrate dynamics of soybeans grown throughout their life-cycle under Free-Air Carbon dioxide Envirhment. Plant, Cell and Environment 27: 449-458.

Sicher, R. 2013. Combined effects of CO2 enrichment and elevated growth temperatures on metabolites in soybean leaflets: evidence for dynamic changes of TCA cycle intermediates. Planta 238: 369-380.

Singh, S.K. and Reddy, V.R. 2017. Potassium starvation limits soybean growth more than the photosynthetic processes across CO2 levels. Frontiers in Plant Science 8: 991, doi: 10.3389/fpls.2017.00991.

Sionit, N., Rogers, H.H., Bingham, G.E. and Strain, B.R. 1984. Photosynthesis and stomatal conductance with CO2-enrichment of container- and field-grown soybeans. Agronomy Journal 76: 447-451.

Valle, R., Mishoe, J.W., Campbell, W.J., Jones, J.W. and Allen, L.H., Jr. 1985a. Photosynthetic responses of 'Bragg' soybean leaves adapted to different CO2 environments. Crop Science 25: 333-339.

Valle, R., Mishoe, J.W., Jones, J.W. and Allen, L.H., Jr. 1985b. Transpiration rate and water use efficiency of soybean leaves adapted to different CO2 environments. Crop Science 25: 477-482.

Vu, J.C.V., Allen, L.H., Jr. and Bowes, G. 1987. Drought stress and elevated CO2 effects on soybean ribulose bisphosphate carboxylase activity and canopy photosynthetic rates. Plant Pysiology 83: 573-578.

Wang, A., Lam, S.K., Hao, X., Li, F.Y., Zong, Y., Wang, H. and Li, P. 2018. Elevated CO2 reduces the adverse effects of drought stress on a high-yielding soybean (Glycine max (L.) Merr.) cultivar by increasing water use efficiency. Plant Physiology and Biochemistry 132: 660-665.

Wang, D., Heckathorn, S.A., Barua, D., Joshi, P., Hamilton, E.W. and LaCroix, J.J. 2008. Effects of elevated CO2 on the tolerance of photosynthesis to acute heat stress in C3, C4, and CAM species. American Journal of Botany 95: 165-176.

Ziska, L.H., Bunce, J.A. and Caulfield, F.A. 2001. Rising atmospheric carbon dioxide and seed yields of soybean genotypes. Crop Science 41: 385-391.