Author(s):

SK Pandey, S Pandey, AS Gontia, S Ramakrishnan and A Rani

Abstract: A field study was conducted to examine the effect of increasing temperature on chickpea phenology, crop growth rate (CGR), sink activity (Assimilate remobilization) and grain yield under normal and late sown condition with thirty one (31) prominent chickpea genotypes. The observations were recorded on phenological and growth analysis traits affecting grain yield of chickpea. The duration of phenological traits viz.Firstflower Initiation (FFI), First Pod Initiation (FPI), Flower End (FE) and Physiological Maturity were found shorter under late sown conditions as compared to normal. Maximum assimilate remobilization rate and was found in Vaibhav under normal sown and RSG 888, Vijay and Vaibhav under late sown condition.Maximum crop growth rate (CGR) was found in L 550, JG 11, GNG469 under normal and PG 96006, ICC4958, JG 218 and L 550 under late planting situation. Under late sown conditions grain yield was reduced and low heat susceptibility index (HSI) < 0.50 was found in Vijay, JGK2 and JG74. The minimum grain yield reduction (%) was observed in JG 14 and Annegiri genotype under elevated temperature conditions, therefore these genotypes can be utilized as a donor parent in crop improvement programme..

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