Stability of days to maturity, plant height, pods per plant, 1000 seed weight and seed yield per plant as parameters of sustainable production in black gram (Vigna mungo L.) in Western Madhya Pradesh
Abstract
Environment and genotype × environment interaction components in ten genotypes of Black gram (Vigna mungo L. Hepper) were studied over six environments (three locations and two years) for days to maturity, plant height, pods per plant, 1000 seed weight and seed yield per plant. Significant differences were observed among environments and genotypes. Text ecotypes × environment interactions for all the characters were significantly different except for pods per plant. Highly significant differences for mean squares due. to environment (linear) indicated the regression of genetic differences in characters over environmental mean. The significant G × E (linear) interaction component revealed the existence of proportionate variability present among genotypes as well as environments. The genotype JU-86 was found stable in a breeding programme for earliness. For improvement of yield, three genotypes viz, IVU-486, IVU-8810 and JU-86 were reported to be the most stable over all environments of western Madhya Pradesh and therefore may be proposed for their direct used in various breeding strategies for sustainable increase of the production in the Western regions of Madhya Pradesh.
