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Genetic analysis for fruit yield and its component characters in Brinjal (Solanum melongena L.)

The present investigation was undertaken with a view to generate genetic information on gene effects for 14 quantitative traits in brinjal through generation mean analysis. The experimental material consists of six generations, namely P1, P2, F1, F2, B1 and B2 of four crosses in brinjal viz., AB-15-07 x GJLB-4 (cross 1), JBR-14-07 x Pant Rituraj (cross 2), NSR-01 x Swarnmani Black (cross 3) and NBR-14-05 x GJB-03 (cross 4). The results indicated that the magnitude and type of gene effects differed for the same trait in different cross combinations. Therefore, for the improvement of particular trait, segregating generations of individual crosses should be handled according to the gene action involved in its inheritance. Additive [d], dominance [h], additive x additive, dominance x dominance gene actions were equally important for days to opening of first flower, fruit length (cross 1 and cross 2), fruit girth, number of fruits per plant (except cross 4), plant height, days to last picking (except cross 1), average fruit weight (except cross 4), fruit yield (except cross 4), number of picking (except cross 3), total phenol, total soluble solids (except cross 2) and fruit borer infestation. Classification of gene action showed importance of duplicate type of gene action for most of the characters in most of the crosses. Breeding procedure involving multiple crosses, biparental crosses may be restored to get transgressive segregants. This is especially important to develop inbred lines having superiority in different characters. Such lines can give better hybrids. While in case of complementary type of epistasis, material can be utilized directly in breeding programme. | Genetic analysis for fruit yield and its component characters in Brinjal (Solanum melongena L.)