COMBINING ABILITY OF EXOTIC ADVANCED BREEDING LINES (ABLs) IDENTIFIED AS PERFECT RESTORERS FOR FRUIT YIELD AND ITS ATTRIBUTING TRAITS IN CHILLI (Capsicum annuum L.)
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Date
2022-12-06
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University of Agricultural Sciences, Bangalore
Abstract
Combining ability is one of the widely used criteria for selection of parents forhybrid cultivar development. Continuous use of new and diverse parents help broaden thegenetic base of hybrid cultivars which would eventually contribute to sustainable chilli
U m , mb b l y x BL’ wusing line × tester mating design. Seventy-five chilli hybrids, their 20 parents and fivechecks were evaluated during early Rabi, 2021-22 for seven quantitative traits. Analysisof variance revealed significant differences among parents and crosses for all the sevenproductivity traits, justifying the material used in the study. Further, ANOVA ofcombining ability emphasized equal role of GCA and SCA variance in the inheritance offour of seven productivity traits; fruits plant-1, green fruit yield plant-1, average red fruitweight and red dry fruit yield plant-1 BL’ m ly, V , V V wfound good general combiners for most of the productivity traits. Top ranking hybridsexcelling the standard check, Arka Meghana for most productivity traits involved at leastone parent with good overall GCA status, establishing the reliability of selection of parentsbased on overall GCA status to realize heterotic hybrids. Two test hybrids namely, CMSUAA × AV 44 and CMS UAA × AV 43 registered high magnitude of heterosis overchecks for most of the productivity traits. These hybrids are suggested for extensiveevaluation in multilocation trials for confirming their yield uperiority and subsequentcommercialization.