Indian Society of Genetics & Plant Breeding

GENETIC VARIABILITY, HERITABILITY AND GENETIC ADVANCE IN TETRAPLOID SPECIES OF COTTON

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Twelve G. hirsutum genotypes and 14 G. barbadense genotypes were studied for genetic
variability, heritability and genetic advance for seed cotton yield, halo length, ginning
outturn, lint index, seed index, bolls per plant and boll weight. In G. hirsutum cotton, LRA
5166 and TKH 4-3 were superior for seed cotton yield, MCU 5, MCU 9 and MCU 11 were
superior for halo length and RKR 4145 and HLS 321729 were superior for ginning outtum.
In G. barbadense cotton, BCS 9~95 and TCB 87-6 were superior for seed cotton yield; IMS
0721, IMS 2722 and Suvin were superior for halo length and TCB 87-6, BCS 23-18-7 and RBS
85 were superior for ginning outturn. These genotypes could be exploited by inter-varietal
hybridization within the species (pedigree breeding) for evolving a superior variety or by
interspecies hybridization hetween the species (heterosis breeding) for developing a
superior interspecific hybrid combining high yield and good fibre quality.
 

Keywords: Variability, heritability, genetic advance, Gossypium hirsutum, G. barbadense

Info

Year: 1993
Volume: 53
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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