Heritability Analysis for Horticultural Traits in Tomato under Low Cost Polyhouse Conditions of Jammu Subtropics

Abstract

Biometrical assessment of genetic parameters for horticultural traits in tomato under Low Cost Polyhouse Conditions of Jammu Subtropics divulged minute differences among GCV and PCV, indicating less environmental influences on the traits under consideration. High heritability & genetic gain were noticed for important yield and yield contributing traits viz., yield per plant (99.91% & 75.28%), fruit weight (99.42% & 74.91%), fruit equatorial diameter (99.15% & 50.08%), no. of fruits per plant (98.61% & 66.70%), no. of flowers per cluster (98.27% & 55.48%), plant height (93.27% & 46.86%), number of fruits per truss (96.17% & 44.66%), number of branches per plant (96.43% & 37.98%), fruit polar diameter (83.06% & 38.40%) and quality traits viz., lycopene content (98.69% & 98.97%),TSS (97.37% & 39.82%) and fruit pericarp thickness (83.20% & 35.21%). High heritability combined with high genetic gain suggests a significant role for additive gene action in regulating these traits and suggests using simple selection as a breeding method to improve these traits.