Heterobeltiosis and standard heterosis for fruit yield and its attributing traits in brinjal (Solanum melongena L.)

Abstract

A study was conducted to estimate the magnitude of heterosis for fruit yield and yield contributing components in brinjal using 45 F1 hybrids generated by half-diallel mating design. Ten pure and diverse parents along with its F1s were evaluated in a Randomized Block Design with three replications at Vegetable Research Station, Junagadh Agricultural University, Junagadh during Rabi 2016-17 (E1), Late kharif 2017-18 (E2) and Rabi 2017-18 (E3). Appreciable magnitude of heterosis was found over better and standard parent for all the traits studied in desirable direction. In order of merit, F1 hybrid PLR 1 x S.M.B. (73.81%) in E1, Pant Rituraj x GJB-3 (66.13%) in E2, GJB-3 x JBGR-06-08 (52.58%) in E3 were observed significant and positive heterosis over better parent. Likewise, significant and positive heterosis over standard check (GBH-1) for fruit yield per plant was observed in hybrid PLR 1 x S.M.B. (125.07%) in E1, GJB-2 x JBL-08-08 (101.20%) in E2 and GJB-3 x JB-12-06 (93.89%) in E3. The present study reveals good scope for isolation of pure lines from the progenies of segregating materials as well as commercial exploitation of heterosis in brinjal.