Hybrid vigour for yield and quality traits in tomato (Lycopersicon esculentum L.)
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Abstract
An experiment on heterosis for yield and other component characters of 50 F1 hybrids of tomato derived from the crosses between 10 lines and 5 testers through line x tester technique was conducted at Research Farm of the Department of Vegetable Science, CCS Haryana Agricultural University, Hisar during 2012-13 and 2013-14. The analysis of variance indicated significantly higher amount of differences among treatments for all the characters studied, suggesting the presence of genetic variation among the studied genotypes. In this study, among crosses, the cross Punjab Varkha Bahar-2 x Hisar Lalit (0.400), EC 620383 x Palam Pink (0.383) and BBWR-10-3-18 x Hisar Lalit (0.382) showed higher early fruit yield per plant (kg) as compared to standard checks. The cross EC 620380 x Punjab Chhuhara (0.133 kg) produced the minimum early yield and the cross EC 620391 x Punjab Chhuhara (0.886 kg) the maximum total yield per plant, manifesting higher heterosis for yield per plant. The cross EC 620533 x Arka Meghali exhibited positive desirable heterosis over best parent for ascorbic acid content (30.58%) and the cross EC 620391 x Arka Vikas (54.25%) for total soluble solids . The cross EC 620380 x Arka Vikas showed the highest negative heterosis over best parent for acidity (-17.12%) and the cross Punjab Varkha Bahar-2 x Hisar Lalit (33.78%) exhibited the significantly highest positive heterosis over best parent for acidity.
Article Details
Article Details
Heterosis, Lycopersicon esculentum L., quality traits, yield
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