Vol. 11, Issue 7 (2022)

Author(s):
Manoj Kumar, Singh TH, Reddy KM, Lakshmana Reddy DC, Sadashiva AT and Samuel DK

Abstract:
Generation mean analysis using basic populations like P1, P2, F₁, F₂, BC1 and BC2 is an efficient method to understand the nature of gene effects involved in the expression of a character in interacting and non-interacting crosses. The parents P1 (IIHR-711) and P2 (IIHR-127) were inter-mated to produce F₁ and these F₁s were forwarded to obtain segregating populations namely F₂, BC1 and BC2 to study the inheritance pattern of the characters. The crosses showed significant results for the only one scale (C) for fruit length and for average fruit weight scale A and C were significant indicating the inadequacy of simple additive-dominance model to estimate the gene effects and presence of epistasis. Whereas, non-significant results in scaling tests (A, B, C and D) for the traits plant height and average fruit weight, indicate that particular gene effect is present in the mode of inheritance of the traits i.e. additive and dominance effect of genes are sufficient to explain the mode of inheritance of character studied. The non-significant results in scaling tests (A, B, C and D) for the traits plant height and average fruit weight, indicate that particular gene effect is present in the mode of inheritance of the traits i.e. additive and dominance effect of genes are sufficient to explain the mode of inheritance of character studied. Therefore, single seed descent method and subsequent pedigree selection would be appropriate breeding method.