Studies of Heterosis for Yield related Traits in Tomato (Solanum lycopersicum L.)

Author: Shashank Shekhar Singh

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Abstract

The phenomenon of heterosis breeding express in first generation which is result of crossing of inbred line. Generally heterosis is not fixable in homozygous population. Therefore the present investigation was carried out during 2017-18 and 2018-19 in the department of Horticulture, SHUATS, (formerly Allahabad Agriculture Institute), Prayagraj, Uttar Pradesh, by using eight parents for yield and its related traits in half diallel manner. The analysis of variance showed that significant difference among tomato genotype for all characters. The promising F1 hybrid over mid parent for yield contributing traits was PBT-23×PBT-22 for days to 50 percent flowering, days to first fruit set, average fruit weight and fruit length and PBT-15×PBT-23 was a promising F1 hybrid for days to first fruit ripening, number of fruit per cluster, yield per plant, yield per hectare, pH of fruit juice and ascorbic acid. The promising F1 hybrid over better parent was PBT-15×PBT-23 for number of fruit per clu

Keywords

Heterosis, breeding, for yield related traits, analysis of variance,