Gene effects for yield contributing characters in pigeonpea (Cajanus cajan L. Millsp) by generation mean analysis

Kumar, C.V.S. and Sreelakshmi, C. and Shivani, D. and Suresh, M. (2009) Gene effects for yield contributing characters in pigeonpea (Cajanus cajan L. Millsp) by generation mean analysis. Journal of Research ANGRAU , 37 (3-4). pp. 71-76.

[img] PDF
Restricted to ICRISAT researchers only

Abstract

Estimates of gene effects based on analysis of generation mean obtained for eight characters in four crosses of pigeonpea indicated the presence of additive, dominance and epistatic gene effects. Among non-allelic interactions dominance × dominance (I) was of greater magnitude than main gene effects for most of the characters indicating the importance of heterosis breeding to utilize non-additive gene effects. The additive gene effects (d) also contributed significantly for different traits like plant height, number of pods per plant and seed yield in the cross LRG 30 × ICP 8863. Dominant gene effects (h) contributed significantly for most of the characters in the crosses PRG 100 × ICPL 87119 and LRG 30 × ICP 8863. Selection in segregating generations of these crosses will be effective for the development of these traits. However, to exploit additive as well as non-additive gene effects reciprocal recurrent selection procedure may be adopted.

Item Type: Article
Author Affiliation: Agricultural Research Station, Acharya N. G. Ranga Agricultural University, Tandur, Rajendranagar - 501 141, India
Subjects: Plant Production > Production Practices
Crop Improvement
Crop Improvement > Genetics
Divisions: Pigeonpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 28 Nov 2010 20:57
Last Modified: 28 Nov 2010 20:57
Official URL: http://www.cabi.org/cabdirect/FullTextPDF/2010/201...
URI: http://eprints.icrisat.ac.in/id/eprint/734

Actions (login required)

View Item View Item