Year: 2015 | Month: June | Volume 8 | Issue 2
Analysis of Heterosis on Morphological and Qualitative Traits in Tomato (Solanum Lycopersicon Mill) for Salinity Tolerance.
DOI:10.5958/2230-732X.2015.00050.9
Abstract:
The present study was carried out for the assessment of heterotic performance of 44 hybrids and their parents including check under saline ecosystem at Vegetable Research Form, NDUAT Kumarganj Faizabad U.P. These F1s were produced by using Line x tester mating design. The crosses, which displayed superiority over better parent and standard variety for total yield per plants, also exhibited significant heterosis for some/most of the major component traits. The most worthy common crosses selected on the basis of per se performance, heterobeltiosis and standard heterosis for different traits in both environments were Bilahi-2 x H-86 and Himlata x H-86 for total yield; MM x H-88 and KS-60 x H-24 for number of fruits plant-1 in E2, MM x H-86 and MM x H-88 for average fruit weight in E1 and EC 168282 x H-24 in E2 for length of fruits; Himlata x H-88 in both experiment and NDT-2 x H-88 in E2 for diameter of fruits and Himlata x H-86 in E1 and NDT-2 x H-86 in E2 for early yield plant-1. However, for agronomical traits, Bilahi-2xH-86 in both environments for plant height as well as number of primary branches plant-1 was observed as voluble cross combination. Promising hybrid identified for the characters important to processing and quality point of view, were MM x H-88 in both environments for total soluble solids; EC 2291-2 x H-88 in both environments for Ascorbic acid content and EC 7343 x H-24 in E1 and Bilahi-2 x H-88 in E2 for pericarp thickness. However, none of the crosses were common for titrable acidity in both the environments in relation to above three parameters i.e. per se performance, standard heterosis and heterobeltiosis.
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