Vol. 7, Issue 1 (2018)
Effect of elevated carbon dioxide (eCO2) on yield and yield components of different rice cultivars in Odisha
Author(s): BP Rosalin, Surendranath Pasupalak and Anupama Baliarsingh
Abstract: The present study was conducted in collaboration with Department of Agricultural Meteorology, OUAT and Central Research Farm, Bhubaneswar by undertaking a pot experiment in Open Top Chamber (OTC) to study yield and yield attributes of seven kharif rice cultivators to eCO2 (476 ppm) during Kharif season, 2012. The experiment was explained by three yield components; panicle numbers/hill, filled grain numbers/panicle and 1000-grain weight under eCO2 conditions. Yield in eCO2 OTC was found to be more than open field by 2.08 ghill-1 (14.5%) associated with increased number of filled grains/panicle (58.8%) and 3.1 ghill-1 more dry matter production compared to open field. However, decreased panicle numbers/hill (40%) and increased grain chaffyness (147%) attributed towards smaller increase in yield undereCO2thanopenfieldcondition.So,earlyandmediummaturitycultivarsproducedmoregrainyield than the late maturity cultivars and eCO2 produced less grain yield than ambient CO2 by 5.76 ghill-1.
How to cite this article:
BP Rosalin, Surendranath Pasupalak, Anupama Baliarsingh. Effect of elevated carbon dioxide (eCO2) on yield and yield components of different rice cultivars in Odisha. J Pharmacogn Phytochem 2018;7(1):1398-1400.