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20171
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Subject: Vegetable Science × Author: ARALIKATTI, OMKAR × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    STUDIES ON GENETIC VARIABILITY IN TOMATO (Solanum lycopersicum L.)
    (UHF,NAUNI, 2017) ARALIKATTI, OMKAR; KANWAR, H.S.
    ABSTRACT The present investigation entitled “Studies on genetic variability in tomato (Solanum lycopersicum L.)” was carried out at Vegetable Research Farm, Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during kharif season, 2016. The experiment was laid out in RCBD with three replications comprising of twenty five diverse genotypes of tomato including Solan Lalima as check variety. The observations were recorded on various characters viz., number of primary branches, plant height (cm), number of fruits per cluster, number of fruits per plant, number of fruit clusters per plant, average fruit weight (g), fruit yield per plant (kg), fruit yield per hectare (q), fruit shape index, pericarp thickness (mm), number of locules per fruit, total soluble solids (°B), harvest duration (days) and buckeye rot incidence (%).A wide and significant range of variability was observed for all the characters under study in all the genotypes. In the present investigation, it is concluded that the genotypes namely, UHSB-34, UHSB-28, UHSB-22, UHSB- 8 gave higher yield compared to rest of the genotypes, but the check variety Solan Lalima performed better over all the genotypes with respect to yield. High coefficients of variation were found in number of fruits per plant, number of locules, number of seeds per fruit, fruit yield per plant and fruit yield per hectare. High heritability along with high estimates of genetic gain was recorded for number of fruits per cluster, number of seeds per fruit, average fruit weight, fruit yield per plant and fruit yield per hectare. The path coefficient analysis depicted that number of fruits per cluster had the maximum positive direct effect on fruit yield per plant. The genetic divergence study depicted that the maximum inter cluster difference is in between the Cluster II and V.