Effect of different gamma rays and EMS concentrations on growth and yield of brinjal genotypes in M3 generation

Abstract

A field experiment was conducted at Horticultural Research Farm, Department of Horticulture, Institute of Agricultural Sciences, B.H.U., Varanasi, UP to investigate the effect of different gamma rays and EMS concentrations on growth and yield of brinjal genotypes in M3 generation. The experimental material comprised of three genotypes of brinjal i.e. Banarasi Gol, Kashi Taru and Kashi Uttam and the different concentration of mutagens i.e. gamma rays (5, 10, 15 and 20kR) and EMS (0.05, 0.10, 0.15 and 0.20% EMS). These mutagens were studied for growth, yield attributes and yield of all three genotypes. The result recorded all the growth and yield traits were decreased as the concentration of both the mutagens increased. The 5kR gamma rays and 0.05% EMS was recorded superior with maximum value of all characters in these treatments. The fruit yield per plant was increased under 5kR by 39.77, 31.32 and 18.26 % and under 0.05% EMS 6.62, 4.81 and 2.56% in Banarasi Gol, Kashi Taru and Kashi Uttam, respectively over control. The overall experimental findings showed that the seed treatments with higher dose of mutagens were negatively responsive for all characters including yield of genotypes.