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Evaluation of tomato genotypes (Solanum lycopersicum l.) for fruit shelf-life and tomato leaf curl disease

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Author: 
Sujeet Kumar and Ramanjini Gowda, P.H.
Abstract: 

Tomato fruit shelf-life is an important fruit quality trait and tomato leaf curl is most devastating plant disease in the world. In this study, fifty-five genotypes were screened for resistance/ susceptible reaction against tomato leaf curl disease under field conditions (summer) 2014 at UAS, Bangalore and estimated the shelf-life of tomato. Out of fifty-five genotypes, seventeen genotypes recorded leaf curl resistance as shown in the bracket EC816103 (0%), EC816101 (0%), EC816099 (2.77 %), EC816098(0%), EC816100 (0%), EC816104 (0%), EC802390 (2.77 %), EC802400 (0%), EC802398(0%), EC-802391(0%), EC802404(0%), EC802402(4%), EC802394(0%), EC802397(0%), EC802399(0%), ARKA ABHA (0%) and H-7998 (0%). Three genotypes Arka-Samrat (18.36%), Arka-Rakshak (18.36%) and RIL-118(18.36%) moderately resistant, three genotypes Sankranti (19.74%), RIL-160 (25%) and RIL-119 (25%) were moderately susceptible, Anaga(51.84%) was susceptible and thirty-one genotypes were highly susceptible. The fruit shelf-life observed lowest in Pusa Ruby (14 days) and maximum in RIL-108 (60 Days) at 280C. The minimum weight losses observed in EC-802392 (3 g) and highest in Arka Rakshak (18 g). In this study, we have identified EC 802400 and EC 80404 having maximum shelf-life of 50 days, highly resistant to tomato leaf curl virus with no symptoms and minimum percent of Physiological loss of weight 15 and 23.6 respectively.

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