Physiological analysis for growth and yield variation in chickpea under moisture stress condition
DOI:
https://doi.org/10.53550/jfl.v21i1.1995Keywords:
Dry matter accumulation, Drought tolerance, DI, DTE, DSI, Harvest indexAbstract
Thirteen genotypes of chickpea were evaluated under irrigated and moisture stress conditions for characterization of adaptive traits conferring tolerance to drought. The genotype Phule 9409-1 and Vijay showed minimum reduction in grain yield under moisture stress, maximum grain yields, minimum drought index (DI), high drought tolerance efficiency (DTE) and least drought susceptibility index (DSI). Phule G 9409-1 maintained higher biomass under irrigated as well as moisture stress condition whereas Vijay recorded high harvest index under moisture stress condition. The changes in dry matter production and their distribution in root, leaves, stem and pods showed independent behaviour over crop growth period. The dry matter accumulation in leaves was higher at initial stages of growth and declined towards maturity. The rate of dry matter accumulation in roots was rather slow while in stem and pod, it was faster with the advancing age of the crop. There was no difference for initiation of first flower bud and initiation of flower while physiological maturity was hastened by 4-5 days due to moisture stress.
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