Genetic analysis of yield and yield attributing components in pea

Abstract

The genetic analysis of pea (Pisum sativum L.) was carried out twenty five germplasm lines under irrigated normal soil condition to determine mode of inheritance of yield and its contributing traits. The experiment was conducted to evaluate in Randomized Block Design (RBD) with three replication at Nidharia Agriculture Farm S.M.M.Town P.G. College, Ballia, U.P. The data was recorded on twelve characters viz, such as days to 50% germination, days to 50% flowering, plant height, days to maturity, pod length, branches per plant, number of pods per plant, number of seed per plant, biological yield per plant, test weight, harvest index and seed yield per plant. The variation in treatment for all characters was found significant for all the characters. All the 25 genotypes showed vast range of variation for all the 12 characters under consideration. Genotypes such as 725-D, 940-D and ARPANA produced the highest seed yield and several out-yielder genotypes are also observed. The highest amount of genotypic and phenotypic coefficient of variations were observed for plant height, number of pods per plant and seed yield per plant. The maximum value of heritability (99) was reported for plant height and minimum value of heritability (29) was reported for the pod length while remaining characters expressed the heritability in decreasing order such as pods per plant (97) , biological yield per plant (97), seed yield per plant (94), number of branches per plant (85), days to 50% germination (84), harvest index (80), days to 50% flowering (79), test weight (69), days to maturity (64) and number of seed per pod (94). The maximum value of genetic advance in percent of mean was found for the plant height (86.63) and minimum value was found for the days to maturity (3.889).The result revealed that these traits may serve as effective selection attributes during selection in breeding program for yield improvement.