STABLE GENOTYPES OF GRASSPEA FOR MID HILL CONDITIONS OF HIMACHAL PRADESH

Abstract

Twenty four diverse and determinate land races were collected from different places of Kangra valley and designated as L.S.P-1, L.S.P-2, - L.S.P-24. All these germplasm lines were raised in randomized complete block design in three different environments (E1, E2 and E3) with three replications during rabi 1995-96. Each genotype was grown in 1.5 x 1.4 m plot with inter row and inter plant spatings of 30 and 15 cm, respectively. The recommended cultural practices were followed to raise the crop. Ten plants were selected randomly for recording data on various morphological characters and yield components such as plant height, number of branches, days to flower, days to podding, days to maturity, pods per plant, seeds per pod, 100- seed weight and seed yield per plot. The biochemical analysis for seed neurotoxin content was carried out following the standard procedure [2]. The data were analysed statistically for stability parameters following Ebeshart and Russell [3]. The significance of stability parameter (bi) and its deviation from unity. were tested by t- test.