Abstract
Soybean JS-335 was treated with 200, 250 and 300 Gy doses of gamma rays to study the variability in M2 for the qualitative and quantitative traits. The experiment was conducted in the experimental farm of Samarth Agriculture College Deulgaon Raja, Buldana during kharif and rabi 2017-18. The treated material along with untreated control planted in M1 generation and individual plants were harvested separately. Harvested seeds of individual plants from M1 generation were planted in non-replicated field trial to rise M2 generation. Observations were recorded on different yield attributing characters like days to flowering, days to maturity, plant height, number of branches plant-1, length of primary root, number of pods plant-1, 100 seed weight and grain yield plant-1. In M2 generation days to flowering and days to maturity increased significantly in all the treatments. Plant height, number of branches plant and length of primary root reduced significantly in all the treatments. Number of pods plant-1 and grain yield plant significantly increased in all the treatments and 100 seed weight significantly decreased in all the treatments as compared to control. The economical and morphological mutants were isolated from the variety of JS-335.
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