An eight parent full diallel consisting of Indian (5) and African (3) inbre
ds of white grain pearl millet (Pennisetum glaucum), revealed adequate vari
ability for all the traits studied. Magnitudes of phenotypic coefficient of
variation (PCV) (39.50%) and genotypic coefficient of variation (GCV) (24.
83%) were highest for grain yield. Days to 50% flowering recorded highest (
77.48%)heritability estimates. The minimum differences between GCV and PCV
for days to 50% flowering, plant height, test weight, and grain number per
square centimetre indicated less environmental influence and was reflected
in high heritability estimates for these traits. All the component traits e
xhibited significant correlations with grain yield except grain number per
square centimetre. Ear girth, test weight, fodder weight, and days to 50% f
lowering exhibited high correlation coefficients and high direct effects in
the desired direction and were considered important in selecting for high
grain yield.