Vol. 10, Issue 12 (2021)

Author(s):
Anisa M Nimbal and V Rudra Naik

Abstract:
In the present study, the pure, healthy and dry seeds of four horsegram varieties of viz., VLG 50, White seeded horsegram, SHG-07 and Tegur local were irradiated with four different doses of gamma rays ie., 100, 200, 300 and 400 Gy for study of the effect on seed germination and seedling vigour such as germination per cent, shoot length (cm), root length (cm) and dry weight (g). For LD50 recorded near to the 400 Gy gamma rays as per survival per cent in the all four horsegram varieties. The M₁ generation was raised in the laboratory condition. The observations were recorded on germination per cent, shoot length, root length, and seed vigour index (length) and analyzed. The results showed that in M₁ generation (laboratory). Among four genotypes, VLG 50 was observed more sensitive, whereas, the cultivar Tegur local exhibited more resistance for most of all traits. The results of the study clearly indicated that different doses of gamma rays could be effectively utilized to create genetic variability for different quantitative traits in all the four genotypes.