Heterosis studies in Tomato (Solanum lycopersicum L.)

Abstract

Heterosis was estimated over better parent, respectively among 45 F1 hybrids for yield and related traits. The most desirable cross combination viz., KS-227 x Roma for fruit yield plant-1 also showed desirable better parent heterosis for days to first picking and fruit size. The cross combinations Local x Marglobe (number of primary branches plant-1), DVRT-1 x S-II (average fruit weight), Arka Vikas x KS-227 (plant height), Marglobe x Roma (flesh thickness), KS-227 x Roma (number of fruits plant-1), VLT-32 x Roma (total soluble solids) and VLT-32 x Shalimar-I (Vitamin C) showed highest better parent heterosis. These cross combinations also revealed high per se performance.