Evaluation of Genetic variability and viability association of eight Mungbean (Vigna radiata L.) varieties under different level of salinity stress

Abstract

An investigation was carried to study the mean performance, variability and the associations between characters in mungbean. For this study eight mungbean genotypes viz., ADT 2, BM-2002-1, ML 5, AKM 4, Vishal, Vamban, TARM 1 and Utkarsh were used. The experiment was conducted in the Seed Science and Technology (sst) Laboratory and at Pot culture yard, Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University, Annamalai nagar, Tamil nadu from September 2016 to December 2017 with four salt treatments (0, 2, 4 and 6 DSM-1) in ramdomized block design with three replications. Observation were on seven seedling characters such as germination percentage, seedling shoot length, seedling root length, seedling shoot fresh weight, seedling root fresh weight, seedling shoot dry weight, seedling root dry weight and seven quantitative characters such as days to first flowering, plant height, number of branches/plant, number of pods/plant, number of seeds/pod, 100 seed weight and seed yield/plant. Four elite genotypes were found to be superior based on the mean performance namely Utkarsh, TARM 1, Vamban and Vishal among the various levels of salinity.