Combining ability analysis for grain yield and yield components using diverse linesin pearl millet [Pennisetum glaucum (L.) R. Br]

B. K.   ATHONI; B. D.  BIRADAR; S. S.  PATIL; P. V.   PATIL; A. K.  GUGGARI

doi:10.61475/jfm.v35i01.94

B. K. ATHONI Department of Genetics and Plant Breeding, College of Agriculture, DharwadUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
B. D. BIRADAR Department of Genetics and Plant Breeding, College of Agriculture, DharwadUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
S. S. PATIL Department of Genetics and Plant Breeding, College of Agriculture, DharwadUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
P. V. PATIL Department of Genetics and Plant Breeding, College of Agriculture, DharwadUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
A. K. GUGGARI Department of Genetics and Plant Breeding, College of Agriculture, DharwadUniversity of Agricultural Sciences, Dharwad - 580 005, Karnataka, India

DOI: https://doi.org/10.61475/jfm.v35i01.94

Keywords: Combiners, Combining ability, Non additive gene action, Pearl millet

Abstract

Thirty minicores were crossed with three diverse CMS sources (ICMA 94555, ICMA 04777 and ICMA 02555)in a line × tester fashion to elucidate the information on the combining ability for seed yield and its component traits. A totalof ninety crosses were evaluated for nine different quantitative traits. Among the three lines used in the study, ICMA 94555and ICMA 02555 exhibited significant GCA effects for most of the characters studied and were found to be the goodcombiners. Likewise, among testers IP 21452, IP 9645, IP 14522 and IP 8863 were found to be good general combiners formost of the traits under observation. The estimates of variance components revealed predominance of non-additive geneaction for most of the characters studied.