Agricultural Science Digest
SCOPUS
  • Year: 2010
  • Volume: 30
  • Issue: 3

Combining Ability and Heterosis for Yield and Its Components in Interspecific Crosses of Desi Cotton

  • Author:
  • B.A. Sanjay, S.T. Kajjidoni, A.M. Talawar
  • Total Page Count: 6
  • Page Number: 157 to 162

Department of Genetics and Plant Breeding, University of Agricultural Sciences, Dharwad-580 005, India.

*Corresponding author E-mail; stkajjidoni@yahoo.co.in.

Abstract

The line x tester analysis involving eight promising lines collected from different leading centers working on desi cotton in India revealed that DD-8NLF exhibited positive significant gca effects for more number of characters like plant height, number of bolls per plant, boll weight, seed cotton yield per plant, lint index and seed index traits. Amongst males, MDL-2582 showed positive significant effects and proved to be better general combiner for number of bolls per plant, seed cotton yield per plant, ginning out turn and lint index.The cross DD-8NLFxMDL-2582 exhibited significant sca estimates for seed cotton yield per plant and halo length traits. As regards the heterosis DD- 8NLFxMDL-2582 exhibited better heterotic response for number of bolls per plant and seed cotton yield per plant, while other characters showed moderately to low response for heterosis.

Keywords

Desi cotton, Combining ability, Heterosis, Seed cotton yield