Estimation of combining ability and gene action for yield and its components in pigeonpea [Cajanus cajan (L.) Millspaugh]

DOI: 10.18805/IJARe.A-4785    | Article Id: A-4785 | Page : 550-555
Citation :- Estimation of combining ability and gene action for yield and its components in pigeonpea [Cajanus cajan (L.) Millspaugh].Indian Journal Of Agricultural Research.2017.(51):550-555

Rakesh Kumar Maida, M.P. Patel, Chandrabhan Ahirwar and A.M. Patel

Rakesh Kumar Maida, M.P. Patel, Chandrabhan Ahirwar and A.M. Patel maidasdau1272@gmail.com
Address : Department of Genetics and Plant Breeding, C.P. College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar-385 506, Gujarat, India.
Submitted Date : 8-05-2017
Accepted Date : 13-10-2017

Abstract

Twenty eight hybrids developed by utilizing eight parents in 8 x 8 diallel mating design excluding reciprocals were evaluated in randomized block design with three replications for twelve characters in order to understand the combining ability and gene action in pigeonpea. The analysis of variance for combining ability revealed presence of additive and non- additive gene action. The ratio of gca/sca variance was less than unity which indicated the preponderance of non- additive gene action for action in the control of pod length, harvest index, protein content and leaf area. The estimates of general combining ability suggested that parents ICPL-87119, GT-103 and AGT-2 were good general combiners for seed yield per plant and its attributing characters while, hybrids UPAS-120 x GT-103, BSMR-853 x BANAS and BSMR-853 x GT-1 showed the higher order sca effect for seed yield per plant. These cross combinations can be potentially utilized in hybrid breeding programmes.

Keywords

Combining ability Diallel analysis Gene action Hybrids Pigeonpea.

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