Evaluation of the Combining Ability in Mulberry (Morus spp.)

., Ramya Harika K. and Mangammal, P. and Devanand, P S and Tejasree, P. and Garai, Ishita and ., Karthick Mani Bharathi B and Kiruba, M. and Kumar, P. (2024) Evaluation of the Combining Ability in Mulberry (Morus spp.). Journal of Advances in Biology & Biotechnology, 27 (9). pp. 758-768. ISSN 2394-1081

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Abstract

The research aimed to comprehend the patterns of gene action influencing the inheritance and expression of quantitative features in mulberry by studying combing ability. Four parents viz., V1, G4, MR2 and S36 were used in mating design. Estimates of SCA depicted that crosses V1 × G4 (shoot diameter and chlorophyll - b) and it’s reciprocal cross G4 × V1 (chlorophyll – a, total chlorophyll) showed high significant SCA effects. V1 × MR2 for shoot diameter and lowest positive SCA for internodal distance. Overall, the crosses with the highest SCA values for specific traits consistently involved V1 as one of the parents. This observation highlights that V1, which possesses the best general combining ability (GCA) effect, contributes significantly to the high SCA observed in these crosses for the traits studied. V1 and MR2 were the best general combiners, with high GCA for growth traits. Crosses G4×V1 and V1×G4 demonstrated positive SCA effects for most traits followed by S36 × V1 and MR2 × V1. Notably, SCA variance was greater than GCA variance for most traits, indicating the dominance of non-additive gene effects.

Item Type: Article
Subjects: East India Archive > Biological Science
Depositing User: Unnamed user with email support@eastindiaarchive.com
Date Deposited: 10 Sep 2024 05:11
Last Modified: 10 Sep 2024 05:11
URI: http://ebooks.keeplibrary.com/id/eprint/1791

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