Multivariate analysis and drought stress tolerance indices in chickpea (Cicer arietinum L.) under different irrigation regimes
Journal Title: Journal of Experimental Biology and Agricultural Sciences - Year 2017, Vol 5, Issue 0
Abstract
In order to evaluate the association between genetic parameters and quantitative drought resistance criteria in chickpea, ten genotypes were evaluated under irrigated and rain-fed field environments. Significant difference was reported among all the measured traits under both environmental conditions. Phenotypic coefficient variation (PCV) ranged from 8.74% (for Proline) to 19.70% (for number of seeds per plant) in irrigated environment while it ranged from 9.90% (for proline) to 19.70% (for 100-seed weight) for rainfed condition. The GCV values were the lowest (8.40%) for chlorophyll content and highest (30.71%) for number of seeds per plant and the lowest (14.73%) for plant height and highest (50.39%) for 100-seed weight in irrigated and rain-fed environmental conditions respectively. High heritability values observed in 100-seed weight, number of seeds per plant and seed yield in both environments and also high heritability for physiological traits in rain-fed environment indicating that these traits are controlled mainly by additive genes and that selection of such traits may be effective for improving seed yield in both environments. There was a positive significant correlation between YSI and YI with seed yield, MP and GMP in both environments, suggesting that these parameters are able to discriminate superior group of genotypes under both environments. Results of factor analysis showed that two and three factors explained 80.34% and 89.66% of the total variance caused in the characters in irrigated and Rain-fed environment, respectively. High heritability for most of the morphological and physiological traits in both environments indicated that additive gene effects are important in determining these traits and selection based on these traits could be very useful in chickpea breeding program to introduce drought resistance chickpea genotypes for rain-fed climates.
Authors and Affiliations
KinanMadet Kadir, Reza Talebi , Hana Hamidi
Keywords
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- EP ID EP428090
- DOI 10.18006/2017.5(1).054.060
- Views 32
- Downloads 0
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