Vol. 12, Issue 8 (2023)

Author(s):
Ajjappalavara PS, Megharaj KC, M Abdul Kareem and Jayanthi BV

Abstract:
Twenty chilli genotypes were tested for ChiVMV resistance through artificial inoculation under controlled condition for four consecutive kharif seasons of 2016-17, 2017-18, 2018-19 and 2019-20 and it was observed that, the per cent disease incidence (PDI) over four years revealed that the virus incidence ranged from 0-71.98% at 30 days and 0-72.45% at 45 days after mechanical inoculation. While, three genotypes did not show any symptoms at 30 and 45 days after mechanical inoculation, it indicates the immune reaction against the Chilli veinal mottle virus whereas, Byadgi Dabbi was susceptible in nature. 30 F_1’s were developed for the analysis of heterosis using three lines and ten testers (Line x Tester passion). The performance of hybrids was overwhelmed over the parents for majority of the qualitative and quantitative traits. The maximum significant and positive heterosis over better parent (226.65%) was observed in the crosses Byadgi Dabbi x DCA-118 for dry chilli yield and Sankeshwar x DCA-107 (78.88%) for green fruit yield. The importance of non additive gene action was reported for all the growth, yield and quality traits except oleroresin content as it was shown the additive gene action in the evaluated 30 F₁ hybrids.