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. |
