tailieunhanh - Variability studies in M3 generation of soybean

The present study was conducted with the objectives to estimate genetic parameters in M3 generation of soybean. The experiment was conducted at the farm of Agricultural Botany Section, College of Agriculture, Nagpur during kharif 2017 in M3 generation. 62 mutants along with two checks (TAMS-38 and JS-335) were evaluated in M3 generation in three replications of which only 20 survived. Data were recorded on germination percentage, mortality percentage, days to flowering, days to maturity, plant height, number of branches plant-1 , number of pods plant-1 , 100 seed weight and grain yield plant-1 . Genetic parameters estimated revealed that seed yield plant-1 , number of pods plant-1 , number of branches plant-1 , 100 seed weight, plant height, days to flowering and days to maturity where the characters influenced by additive gene action as they exhibited high genotypic coefficient of variation, moderate to high heritability along with high genetic advance as percentage of mean. Hence, those characters were identified for selection of better individual mutant from the progenies. | EXCELLENT PUBLISHERS International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 8 Number 07 2019 Journal homepage http Original Research Article https Variability Studies in M3 Generation of Soybean . Kankal . Dhapke Shubhangi K. Maraskole . Kamdi . Rahangdale . Meshram and . Patil Agriculture Botany Section College of Agriculture Nagpur India Corresponding author ABSTRACT Keywords Genetic advance Genotypic coefficient of variability Heritability Phenotypic coefficient of variability Article Info Accepted 15 JUne 2019 Available Online 10 July 2019 The present study was conducted with the objectives to estimate genetic parameters in M3 generation of soybean. The experiment was conducted at the farm of Agricultural Botany Section College of Agriculture Nagpur during kharif 2017 in M3 generation. 62 mutants along with two checks TAMS-38 and JS-335 were evaluated in M3 generation in three replications of which only 20 survived. Data were recorded on germination percentage mortality percentage days to flowering days to maturity plant height number of branches plant-1 number of pods plant-1 100 seed weight and grain yield plant-1. Genetic parameters estimated revealed that seed yield plant-1 number of pods plant-1 number of branches plant-1 100 seed weight plant height days to flowering and days to maturity where the characters influenced by additive gene action as they exhibited high genotypic coefficient of variation moderate to high heritability along with high genetic advance as percentage of mean. Hence those characters were identified for selection of better individual mutant from the progenies. Introduction Soybean Glycine max L. Merrill is referred as Golden bean and Miracle crop of 21th century. It is one of the important oilseed as well as legume crop. It contributes more than 50 to the global production of edible oil. Soybean contains 20 oil and 40 protein. Soy