Generation mean analysis and gene action for yield attributes in green gram genotypes (Vigna radiata)

Abstract

Green gram (Vigna radiata L.) is an important pulse crop whose yield is influenced by complex quantitative traits. This study conducted generation mean analysis to evaluate gene action controlling yield and yield-contributing traits among seven green gram genotypes: BM-4, BPMR-145, BM2003-2, BM2002-1, PKV, AKV-4, and PKV Green Gold. F₁ and F₂ generations were developed from crosses among selected genotypes. Observations were recorded for plant height, number of pods per plant, seed yield per plant, and 100-seed weight. Analysis revealed that additive gene effects predominated for seed yield per plant and 100-seed weight, while some traits exhibited partial dominance and epistatic interactions. These results provide insights for designing effective breeding strategies for yield improvement in green gram.