Stability analysis for yield and its component characters in blackgram [Vigna mungo (L.) hepper] Shobanadevi C.1,*, Elangaimannan R.1, Vadivel K.2 1Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India 2National Pulses Research Center, Tamil Nadu Agricultural University, Vamban Colony-622 303, Tamil Nadu, India *Corresponding Author: C. Shobanadevi, Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University, Annamalainagar-608 002, Tamil Nadu, India, Email: crshobanadevi@gmail.com
Online Published on 5 January, 2024. Abstract Background Blackgram [Vigna mungo (L.) Hepper] is an important pulse crop occupying a unique position in Indian agriculture. Blackgram provides a major share of the protein requirement of the vegetarian population of the country. The crop is resistant to adverse climatic conditions and improves the soil fertility by fixing atmospheric nitrogen in the soil. Phenotypically stable genotypes are of great importance because the environmental conditions vary from season to season and year to year. Stable performance of blackgram genotypes across contrasting environments is essential for the successful selection of stable and high yielding varieties. Methods A total of seven genotypes of blackgram were evaluated one season (Rabi - 2019) in three environments to study the G × E interaction for three traits. Result Based on the stability analysis of Eberhart and Russell model, two genotypes viz., MDU 1 and NRIB 002 were found to be stable across the environments for seed yield. These genotypes had high seed yield with a unity regression coefficient and deviation from regression equal to zero. Top Keywords Blackgram, G × E interaction, Genotypes, Seed yield, Stability. Top |