Vol. 5, Issue 5 (2017)
Estimation of gene action, heterosis, genetic advance and other components in brinjal (Solanum melongena L.)
Author(s): Savaliya PG, Patel NB, Mungala RA and Movaliya HM
Twelve generations, namely P1, P2, F1, F2, B1, B2, B11, B12, B21, B22, B1s and B2s of three crosses of brinjal viz., JBG-10-208 x GOB-1 (cross 1), NSR-1 x GBL-1 (cross 2) and JB-12-06 x Pant Rituraj (cross 3) were transplanted at Instructional Farm, Junagadh Agricultural University, Junagadh during late kharif 2016-17 to study the gene effect, heterosis, inbreeding depression, heritability in narrow sense and genetic advance using Compact Family Block Design (CFBD) with three replications. The observations were recorded on yield and yield related components. Generation mean analysis using ten parameters (m, [d], [h], [i], [j], [k], [l], [w], [x], [y] and [z]) was carried out to assess the presence of inter-allelic interaction and to estimate the importance of various gene effects. The crosses and the traits which were found significant digenic interaction (weighted least square technique) subjected to trigenic ten-parameter model. The trigenic ten-parameter model was found significant χ2 values with two degrees of freedom for all the traits in all the three crosses showing the presence of higher order epistasis and /or linkage. Besides this, all ten-parameters were significant for fruit weight, plant spread and fruit borer infestation in all the crosses. The heterosis over better parent was significant for days to opening of first flower, number of fruits per plant, plant height, total fruit yield per plant, plant spread and fruit borer infestation in all the crosses. A high degree of inbreeding depression was found in JB-12-06 x Pant Rituraj (10.65%) indicated the exploitation of heterosis in this cross. Narrow sense heritability was observed high for fruit weight and plant height in all the crosses. The high heritability estimates followed the trend of high genetic advance in all the three crosses for most of the characters.
Pages: 1858-1865 | 686 Views 16 Downloads
How to cite this article:
Savaliya PG, Patel NB, Mungala RA, Movaliya HM. Estimation of gene action, heterosis, genetic advance and other components in brinjal (Solanum melongena L.). Int J Chem Stud 2017;5(5):1858-1865.