Induced variability in chickpea through EMS, SA and gamma radiation
DOI:
https://doi.org/10.53550/jfl.v20i1.2087Keywords:
Chickpea, EMS, Gamma radiation, Heritability, Sodium azide, VariabilityAbstract
In the present investigation, an attempt was made to induce genetic variability in yield contributing traits of two popular chickpea cultivars, Vijay and Vishwas, employing three well known mutagens, sodium azide (SA), ethyl methane sulphonate (EMS) and gamma radiation (GR). Result indicated that all mutagenic treatments were effective in inducing genetic variability in yield contributing traits in both the varieties. The 2 mM concentration of SA promoted plant spread in both the varieties, seed yield/plant in Vijay and 100-seed weight in Vishwas. Higher concentrations of SA and EMS as well as gamma radiation caused reduction in these traits. The extent of effect was dose dependent. Lower concentration of gamma radiation showed higher value for plant height and 100-seed weight in both varieties. Statistical analysis revealed higher phenotypic coefficients of variation (PCV) than genotypic coefficients of variation (GCV) for all the six quantitative traits studied. High heritability coupled with high genetic advance observed for traits such as plant height, number of pods per plant and number of seeds per plant offer wide scope for selection in breeding programmes of chickpea.
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