Soybean (Glycine max (L.) Merr.) growth and development response to CO2 enrichment under different temperature regimes |
| |
| Institution: | 1. Embrapa Arroz e Feijão, Rodovia Goiânia - Nova Veneza, km 12, Sto Antônio de Goiás, GO 75375-000, Brazil;2. Embrapa Meio Ambiente, Rod. SP 340, Km 127.5, 13820-000 Jaguariúna, SP, Brazil;3. Department of Crop Science, University of São Paulo (ESALQ), Piracicaba, SP, Brazil;4. Department of Crop and Soil Sciences, The University of Georgia, Griffin, GA 30223-1797, USA;5. Department of Biological and Agricultural Engineering, The University of Georgia, Griffin, GA 30223-1797, USA;1. Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, PO Box 721302, Kharagpur, India;2. Institute for Sustainability and Peace, United Nations University, 5-53-70 Jingumae, Shibuya-ku, Tokyo 150-8925, Japan;1. Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, 4 Water St, Creswick, VIC 3363, Australia;2. Agriculture Victoria, Grains Innovation Park, 110 Natimuk Rd, Horsham, VIC, 3401, Australia;3. School of Ecosystem and Forest Sciences, The University of Melbourne, 4 Water St, Creswick, VIC, 3363, Australia;1. Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, USA;2. Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;3. Global Change and Photosynthesis Research Unit, USDA Agricultural Research Service, Urbana, IL 61801, USA;4. Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;1. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China;3. USDA-ARS, Crop Systems and Global Change Lab, Beltsville, MD 20705, USA;4. Centre for Systems Biology, University of Southern Queensland, Toowoomba QLD 4350 Australia;1. Cátedra de Cultivos Industriales, Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE Buenos Aires, Argentina;2. Cátedra de Cerealicultura, Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, C1417DSE Buenos Aires, Argentina;3. CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Av. Rivadavia 1917, C1033AAJ Buenos Aires, Argentina;4. IFEVA (Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura), Av. San Martín 4453, C1417DSE Buenos Aires, Argentina;1. State Key Laboratory of Grassland Agro-Ecosystems, Institute of Arid Agroecology, School of Life Sciences, Lanzhou University, Lanzhou, 730000, Gansu Province, China;2. College of Agricultural and Biological Sciences, Dali University, Dali, 671003, Yunnan Province, China;3. UWA Institute of Agriculture and UWA School of Agriculture and Environment, The University of Western Australia, M082, Locked Bag 5005, Perth, WA, 6001, Australia;4. Centre for Crop Systems Analysis, Wageningen University, P.O. Box 430, AK 6700, Wageningen, the Netherlands |
| |
| Abstract: | The carbon dioxide (CO2) concentration of the global atmosphere has increased during the last decades. This increase is expected to impact the diurnal variation in temperature as well as the occurrence of extreme temperatures. This potentially could affect crop production through changes in growth and development that will ultimately impact yield. The objective of this study was to evaluate the effect of CO2 and its interaction with temperature on growth and development of soybean (Glycine max (L.) Merr., cv. Stonewall). The experiment was conducted in controlled environment chambers at the Georgia Envirotron under three different temperatures and two CO2 regimes. The day/night air temperatures were maintained at 20/15, 25/20 and 30/25 °C, while the CO2 levels were maintained at 400 and 700 ppm, resulting in six different treatments. Plants were grown under a constant irradiance of 850 μmoles m−2 s−1 and a day length of 12 h; a non-limiting supply of water and mineral nutrients were provided. Five growth analyses were conducted at the critical development stages V4, R3, R5, R6 and R8. No differences in start of flowering were observed as a function of the CO2 level, except for the temperature regime 25/20 °C, where flowering for the elevated CO2 level occurred 2 days earlier than for the ambient CO2 level. For aboveground biomass, an increase in the CO2 level caused a more vigorous growth at lower temperatures. An increase in temperature also decreased seed weight, mainly due to a reduction in seed size. For all temperature combinations, final seed weight was higher for the elevated CO2 level. This study showed that controlled environment chambers can be excellent facilities for conducting a detailed growth analysis to study the impact on the interactive effect of changes in temperature and CO2 on soybean growth and final yield. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
