Studies on variability, heritability and genetic advance in tomato hybrids

Abstract

The present investigation was conducted at the Vegetable Research Farm Maharajpur, JNKVV, Jabalpur during Rabi season 2017. The experimental material consisted of twenty five tomato hybrids. The experiment was conducted in randomized block design with three replications. The plot size was kept at 3.0 X 2.5 m, each plot consisted of 5 rows with 5 plants in one row spaced at 60 X 50 cm apart. Traits in the present investigation showed considerable genetic variability with regard to heritability, genetic advance and correlation coefficient mean value for all the characters had a wide range of variability. The present investigation revealed that the phenotypic coefficient of variation was higher than the corresponding genotypic coefficient of variation for all the traits. High phenotypic and genotypic coefficient of variation was recorded for fruit yield/ plant (kg) (29.18 and 26.23 %) followed by number of fruit /plant (24.26 and 23.55 %), number of flower/cluster (20.25 and 18.44 %), number of flower clusters/plant (17.20 and 16.53 %), number of fruit/ cluster (16.81 and 15.44 %). High heritability coupled with high genetic advance as percentage of mean was recorded for number of fruit/plant (94.23 and 47.10 %), and fruit yield/ plant (80.81 and 48.58 %).