Genetic Variability, Heritability and Genetic Advance in Pearl Millet (Penisetum glaucum [L.] R. Br.) Genotypes.
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Date
2013-01
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Abstract
Fifteen genotypes of pearl millet (Pennisetum glaucum L. R. Br.) were evaluated at Sudan
University of Science and Technology, The Demonstration Farm, College of Agricultural
Studies, Shambat, during the summer season 2009 and 2010. The present study was
conducted to assess the magnitude of genetic variability, heritability in broad sense and
genetic advance among fifteen pearl millet genotypes for some growth and grain yield
characters. A randomized complete block design with three replications was used at each
season. Highly significant differences (P≤ 0.01) were observed for days to 50% flowering
and days to maturity in the both seasons, for plant height, leaf area, number of grains
/plant, 1000 grain weight and grain yield (t/ha) in the summer season of 2009, for panicle
length in the summer season of 2010. Also highly significant differences were observed
for genotypes and genotypes × seasons interaction for days to 50% flowering and days to
maturity. In general phenotypic coefficients of variation (PCV) estimates were higher than
genotypic coefficients of variation (GCV) estimates for all the studied characters in all
genotypes displaying the influence of environment effect on the studied characters. The
combined results for heritability showed that the high estimates of heritability and genetic
advance were scored for days to 50% flowering and days to maturity indicating that these
characters were under the control of additive genetic effects. The genotypes ICMV155 and SADC (long) scored the most minimum days to maturity (68) days whereas, the
genotypes ICMW221 and Ugandi scored the highest yield values of 2.20 and 2.05(t/ha),
respectively. Such genotypes can be manipulated for further improvement in millet
breeding programs at the Sudan.
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Keywords
Pearl millet, genotypes, growth, yield, variability, heritability, genetic advance
Citation
Subi Musa Ishag Mohamed, Idris Atif Elsadig. Genetic Variability, Heritability and Genetic Advance in Pearl Millet (Penisetum glaucum [L.] R. Br.) Genotypes. British Biotechnology Journal. 2013 Jan; 3(1): 54-65.