Stability analysis for seed yield and its component characters in fenugreek (Trigonella foenum-graecum L.).

Abstract

Fourteen genotypes of fenugreek (T. foenum-graecum) were grown at Sriniketan (West Bengal, India) in four different environments during winter 1998-99, 1999-2000 and 2000-01. Genotype × environment (G × E) interaction was studied for seed yield and its component characters, i.e. pods per plant, seeds per pod and test weight. G × E interactions were highly significant for all the characters. Both linear and non-linear components of G × E interactions were highly significant, non-linear component being predominant for seeds per pod and seed yield per plant, while linear component was predominant for test weight. However, both linear and non-linear components were equally important for pods per plant. The genotypes UM-129, UM-301 and UM-302 were stable.