Study of genetic variability for yield and its contributing characters in tomato (Solanum lycopersicum L.) under polyhouse condition

The present investigation was conducted on thirty six genotypes including hybrids of tomato for study of genetic variability for yield and its contributing traits. The analysis of variance (ANOVA) exhibited significant genotypic variance among the genotypes/hybrids for all the 12 characters were studies. High GCV and PCV estimates were observed for number of fruit per cluster, number of flower per cluster, average fruit weight, number of fruits per plant, fruits yield per plant and fruit yield per hectare. The characters number of fruits per plant recorded highest heritability followed by average fruit weight, number of flowers per cluster, number of fruits per cluster, fruit length, fruit yield per plant, fruit yield per hectare, fruit width and days of first fruit set. The high magnitude of genetic advance as per cent of mean was recorded for average fruit weight, number of fruits per plant, fruit yield per hectare, fruit yield per plant, number of flowers per cluster, number of fruit per plant, fruit length and fruit weight. Therefore selection for these characters in segregating generation based phenotypic performance would be more effective for further improvement of yield and its contributing traits in tomato.