Genetic variability and expected response to selection in a pearl millet population

Sandhu, S.S. and Phul, P.S. (1984) Genetic variability and expected response to selection in a pearl millet population. Indian Journal of Genetics and Plant Breeding, 44 (1). pp. 73-79.

[img] PDF
Restricted to ICRISAT researchers only


Genetic components of variance were estimated in a pearl millet population PSB-3 by using the North Carolina Design-II in respect of grain yield and other morphological traits under normal and wide spacings. The additive component for grain yield was predominant under the two spacings whereas dominance component was significant under wide spacing only. The heritability estimates were 15 and 20 percent under wide and normal spacings respectively. The expected genetic advance, expressed as percentage of mean for grain yield, ranged from 10.78 to 13.32 per cent under full-sib and half-sib selection schemes. High heritability estimates were obtained in case of ear length, days to 50 per cent flowering and plant height in the two environments. The genetic advance in respect of these traits was also high except in case of days to 50 per cent flowering, where it was low probably due to less variability for this trait among the plants used for mating. Ear girth had varying values of heritability under the two spacings. In general, studies revealed greater response to selection under half-sib selection scheme than under the full-sib selection scheme

Item Type: Article
Author Affiliation: Department of Plant Breeding, Punjab Agricultural University, Ludhiana-141 004
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Millet
Depositing User: Ms K Syamalamba
Date Deposited: 27 Nov 2012 09:23
Last Modified: 27 Nov 2012 09:23

Actions (login required)

View Item View Item