Genetic analysis of biochemical constituents in tomato (Lycopersicon esculentum Mill.)

摘要

The present investigation was carried out to estimate combining ability effects of parents and hybrids for some biochemical constituents important for tomato fruit quality and processing. The experimental material comprised three genetic male sterile(pollen abortive type) lines, 12 male parents and their 36 F_1 hybrids produced in a line X tester fashion. Observations were recorded on total soluble solids (TSS), pH, titra-table acidity, dry matter (DM), lycopene and total carotenoids. Analysis of variance for combining ability revealed that MS due to hybrids were significant at P<=0.05 for all the characters. The analysis further revealed significant differences among lines, testers and lines X testers for all the characters studied, suggesting the importance of both additive and non-additive gene effects. Based upon the information drawn, parents and crosses are identified for their utilization through pure line breeding and hybrid production.