Assessment of Genetic Variability in F4 Populations of Upland Cotton (Gossypium hirsutum L.)
Assessment of Genetic Variability in F4 Populations of Upland Cotton (Gossypium hirsutum L.)
Tanweer Fatah Abro1, Asif Ali Kaloi1, Jay Kumar Sootaher1*, Piar Ali Shar1, Tarique Ahmed Baloch2, Tanveer Ali Soomro1, Muhammad Saleem Chang3, Kirshan Kumar Menghwar1 and Waqar Hussain Shah4
ABSTRACT
The current investigations were carried out during 2016-2017 to determine genetic variability, heritability, and genetic gain in nine F4 segregating populations for morphological, yield and fiber quality related traits in upland cotton. Significant differences were observed among genotypes, parents, F4 populations and parents x F4 populations for all the studied attributes which articulated greater genetic variation in the breeding material. Heritability estimates were moderate to high for all the traits. The F4 population CRIS-134 x FH-113 displayed the highest heritability estimates for plant height (95.24%). The maximum heritability for sympodial branches plant-1 (85.30%) and seed index (82.02%) were exhibited by the F4 population CRIS-342 x IR-3701. The F4 population CRIS-342 x Neelum-121 manifested the highest heritability values for bolls plant-1 (90.81%) and boll weight (96.85%). For seed cotton yield plant-1 and ginning outturn, the highest heritability values (90.08 and 90.20%) were confirmed by the F4 population CRIS-342 x MNH-886. For staple length, the promising heritability was discovered in the F4 population CRIS-134 x Neelum-121 (85.45%). Genetic gain values were low to high for all traits. Results suggested that above F4 populations indicated their potential for various yield and fiber traits through heritability coupled with genetic gain to be used in future breeding programs for improving seed cotton yield and fiber quality traits in upland cotton.
To share on other social networks, click on any share button. What are these?
