Effect of Elevated CO2 on the Photosynthesis, Growth and Water Relation of Brassica Species Under Moisture Stress |
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| Authors: | D C Uprety R S Mishra Y P Abrol |
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| Institution: | Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India |
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| Abstract: | An attempt has been made to study the interactive effect of elevated CO2 and moisture stress on photosynthesis, growth and water relations of Brassica species using open top chambers. It was observed that plants responded to elevated CO2 significantly under moisture stress condition mitigating the adverse effects on photosynthesis and growth of Brassica species. Relatively drought susceptible species, viz. B. campestris and B. nigra , responded to elevated CC2 markedly as compared to less sensitive B. carinata and B. juncea plants. The water status of plants significantly improved under elevated CO2 concentration possibly by increasing stomatal resistance and/or by increased root growth. |
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| Keywords: | Brassica juncea Brassica campestris Brassica nigra Brassica cannata CO2 enrichment photosynthesis moisture stress |
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