Greener Journal of Plant Breeding and Crop Science Vol. 3 (1), pp. 008-014, May 2015.
ISSN: 2354-2292 © 2015 Greener Journals
Manuscript Number: 040915049
Genotypic Variability for Agronomic Traits in Pearl Millet (Pennisetum glaucum L. R. Br.)
Omar Abdalla Bakhit1*, El Hag Hassan Abu Elgasim2
¹Pearl Millet Improvement Program, Agricultural Research Corporation, El Obeid Research Station, P.O. Box 429 , Sudan.
²Former Director of El Obeid Research Station, Associate Professor , Agricultural Research Corporation, P.O. Box 429 , Sudan. (E-mail: elhaghasan@ yahoo. com)
*Corresponding Author’s E-mail: omarbakhit @yahoo. com
The study was conducted to assess the variation, genotypic and phenotypic coefficients of variation and estimate broad sense heritability and genetic advancement as percentage of the mean for seventeen traits in 18 genotypes of pearl millet (Pennisetum glaucum L. R. Br.). The experiment was carried out in a randomized complete block design with four replications at four sites in 2006 cropping season. Analyses of variance revealed significant differences among genotypes for all traits studied except plant population/ha. The highest genetic coefficients of variation were detected for grain yield (31.44%), harvest index (30.96%), dry panicle weight (28.56%) and grain yield per plant (25.83%). The highest phenotypic coefficients of variation were shown by grain yield (38.07%), harvest index (37.89%) and grain yield /plant (35.03%). The values of phenotypic coefficient of variation were higher than their corresponding genotypic coefficient of variation for all studied. High heritability estimates were observed for threshing percentage (0.75), days to 50% flowering (0.74), days to 95% maturity (0.73) and dry panicles weight (0.73). The predicted genetic advancement as percentage of mean was found to be very high for grain yield) (53.47%), harvest index (52.2%) and dry panicle weight (50.13%).
Keywords: Pearl millet, genotypic coefficient of variation, phenotypic coefficient of variation, heritability, genetic advancement, variations.
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