GENETIC VARIABILITY STUDIES IN F2 SEGREGATING POPULATION OF BRINJAL (Solanum melongena L.) FOR YIELD AND QUALITY TRAITS
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Date
2019-10-19
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K.R.C COLLEGE OF HORTICULTURE, ARABHAVI (UNIVERSITY OF HORTICULTURAL SCIENCES, BAGALKOT)
Abstract
The investigation on “Genetic variability studies in F2 segregating population of brinjal (Solanum melongena L.) for yield and quality traits” was conducted in the field of Vegetable Science Kittur Rani Channamma College of Horticulture, Arabhavi. Two F2 population of brinjal i.e., Swetha x Arka Kusumakar and Pusa Shymala x Utkal Anushree were evaluated in un-replicated trails during kharif 2018.
Analysis of variance revealed that highly significant (p=0.01and 0.05) difference among two population was observed for all characters studied indicating the higher magnitude of variability in two populations
High GCV and PCV were observed for number of fruits per plant, fruit yield per plant in both the population. High estimates of heritability (>60%) coupled with high values of GAM (>20%) were observed for the characters viz., number of fruits per plant, average fruit weight, fruit yield per plant, number of primary branches, plant spread East to West direction, plant spreads North to South direction in both the populations. Fruit diameter, stalk length, stem girth recorded high heritability coupled with high GAM in population of Swetha x Arka Kusumakar where as number of flowers per cluster, leaf area in the population of Pusa Shymala x Utkal Anushree. Therefore additive component is predominant here, thus there is ample scope for improving these characters through direct selection.
The results on correlation and path analysis revealed positive and significant association of yield per plant with number of fruits per plant, average fruit weight, stem girth, fruit diameter in both the crosses and number flowers per cluster in population of Pusa Shymala x Utkal Anushree had high direct effects along with positive significant correlation indicating the possibility of increasing fruit yield by selecting these characters in both the segregating populations.
The more number of fruits and high yield per plant was recorded for the plant number 15, 32, 162, 1 and 232 in Swetha x Kusumakar and in Shymala x Utkal anushree plant number 50, 169, 154, 212 and 201 these plants forwarded for further generation to assess for their stability.
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