Genetic variability for fusarium wilt disease reactions in pigeonpea (Cajanus cajan L.) Millsp.
Hemanth Byatroy, IS Katageri and Basavaraj Bagewadi
Pigeonpea is India's most significant pulse crop. The principal biotic restrictions in pigeonpea production is fusarium wilt (FW). To overcome this, genomics-assisted breeding (GAB) is essential to develop varieties which are not only high yielding but also resistant to FW. In this study, 308 recombinant inbred lines (RILs) developed for FW resistance (GS 1 X MARUTI designated as RIL 1) were screened at Agriculture research station, Gulbarga in kharif season 2016-17 for fusarium wilt disease reactions. Among 308 RILs, 103 RILs were found to express susceptible disease reaction with FWDI of 30 to 100%, 102 RILs were found to express moderately resistance disease reaction with FWDI ranging from 10.1 to 30% and 103 RILs were found to be expressing resistant disease reaction with FWDI ranging from 0 to 10%. Overall, it was found that the genotypes showed an average of 29.5% FWDI with high broad sense heritability, GCV and PCV. This study is a stepping stone to identify resistant lines and also to develop high density genetic map and identify QTLs for FW disease reactions.
How to cite this article:
Hemanth Byatroy, IS Katageri, Basavaraj Bagewadi. Genetic variability for fusarium wilt disease reactions in pigeonpea (Cajanus cajan L.) Millsp.. Pharma Innovation 2022;11(6):129-136.