Development and evaluation of hybrids resistant to late blight and leaf curl virus diseases in tomato

The current study in tomato (Solanum lycopersicum L.) was conducted at PAU, Ludhiana with the objective of developing hybrids possessing combined resistance to late blight and leaf curl virus diseases along desirable horticultural characteristics. experimental material which included 32 F1 (developed by line ? tester method), 12 parental lines (8 4 testers; including susceptible check Punjab Chhuhara) standard NS-524 were all planted randomized complete block design three replications. values ?2SCA/?2GCA more than unity for traits except average fruit weight ascorbic acid content, indicating predominance non-additive gene effects. Cross combinations CLN-154 LBR-12 LBR-21 recorded significant heterosis over better parent yield other quality Artificial natural screening performed against respectively. Out hybrids, crosses namely CLN-154? LBR-12, LBR-21, PVB-1 LBR-10, PVB-4 CLN-104 LBR-10 identified disease virus, relation characteristics particularly yield, weight, pericarp thickness, dry matter, titrable acidity content fair amount heterosis. Hence, displayed good potential acceptable performance qualitative traits, could be utilized commercial exploitation.