Variability, Heritability and Genetic Advance in F2 Population of Cross Between Cultivated and Wild Tomato

Sayeda Faiza Mehboob


F2 population of cross Wild tomato (Solanum pimplifollium) variety Coldera and cultivated tomato (Solanum lycopercicum) KHT5 was evaluated to find genetic components i.e., genotypic variance (Vg), phenotypic variance (Vp), genotypic coefficient of variance (GCV), phenotypic coefficient of variance (PCV), heritability (Hb) and genetic advance (GA) for quantitative characteristics of tomato. Data were recorded for P1, P2, F1 and F2 population for flower cluster-1, fruit cluster-1, fruit weight, fruit diameter, plant height, fruit plant-1 and yield plant-1, respectively. All traits revealed higher phenotypic and lower genotypic variances. Relatively, higher differences were recorded between phenotypic and genotypic coefficient of variance for all characteristics except fruit diameter. Maximum (181.66 & 105.15) and minimum (2.85 & 15.65) genotypic and phenotypic coefficient of variance was recorded for traits i.e., yield plant-1, plant height, flower cluster-1 and fruit diameter, respectively. Majority of the traits i.e., plant height, fruit diameter, yield plant-1 and fruit cluster-1 revealed highest values of heritability and genetic advance in means. Highest and lowest (99.83% & 42.56%) values of broad sense heritability with maximum and minimum (181.84% & 38.88%) values of genetic advance was recorded for traits i.e., plant height, fruit weight and flower cluster-1, respectively.

Keywords: Tomato, F2, genetic analysis, heritability, genetic advance

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ISSN (Paper)2224-6088 ISSN (Online)2225-0557

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