Diallel analysis in cotton (Gossypium hirsutum L.) for water stress tolerance

Diallel analysis in cotton (Gossypium hirsutum L.) for water stress tolerance

Information about combining ability is important in determining breeding strategies. The objective of this study was to estimate the general (GCA) and specific (SCA) combining abilities among twenty cotton hybrid combinations submitted to water stress, based on agronomic traits. The trails were carr...

Full description

Saved in:
Bibliographic Details
Published in:Crop breeding and applied biotechnology Vol. 18; no. 1; pp. 24 - 30
Main Authors: Vasconcelos, Ubieli Alves Araújo, Cavalcanti, José Jaime Vasconcelos, Farias, Francisco José Correia, Vasconcelos, Walmir Sousa, Santos, Roseane Cavalcanti dos
Format: Journal Article
Language:English
Published: Vicosa Crop Breeding and Applied Biotechnology 01-01-2018
Subjects:
AGRONOMY
BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Combining ability
Cotton
Dry season
Genotype & phenotype
Hybrids
Lint
Parents
Plant breeding
Semiarid environments
Water stress
drought tolerance
genetic control
hybrid
combining ability
Breeding
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Information about combining ability is important in determining breeding strategies. The objective of this study was to estimate the general (GCA) and specific (SCA) combining abilities among twenty cotton hybrid combinations submitted to water stress, based on agronomic traits. The trails were carried out in semiarid environment (Barbalha, CE), during two years, in dry season under irrigation, and submitted to 23 days of water suppression. Wide variability was verified among parents and their hybrids, with additive effects to seed yield, lint percentage, blooming and boll weight. Dominance effect was found only to plant height. The combinations BRS 286 x CNPA 5M, BRS RUBI x CNPA 5M, FM 966 x CNPA 5M and BRS 286 x BRS Seridó showed the best SCAs and averages for the majority of the traits. In addition, at least one of their parents had high CGA. These combinations must be advanced in cotton breeding program.
ISSN:1518-7853
1984-7033
1984-7033
DOI:10.1590/1984-70332018v18n1a4