Genotypic variation for starch, protein, seed yield and its attributes in pearl millet
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Date
2005
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Publisher
CCSHAU
Abstract
Characterization of 66 genotypes of pearl millet was carried out for grain
starch per cent, grain protein per cent, grain yield per cent and other quantitative
characters. High significant differences were observed among the 66 inbreds for
all the 19 characters studied. High broad sense heritability (> 80 %) was recorded
for grain starch, grain yield per plant, days to 50% flowering, dry fodder weight,
days to maturity, starch recovery, ear length and main ear grain weight whereas
moderate high heritability (> 70%) for main ear grain number, grain filling rate,
ear girth, growth rate and plant height. Expected genetic advance expressed as
percentage of mean was high for starch recovery, dry fodder weight, grain yield
per plant, main ear grain weight, growth rate and main ear grain number.
Grain yield per plant was significantly positively correlated
with eight characters i.e. main ear grain weight, total ear
weight, growth rate, dry fodder weight, plant height, effective
tillers and ear length. Grain starch showed no significant
correlation with any character. The grain protein and starch
recovery were negatively correlated with grain yield per plant
and positive association among them. Path coefficient analysis
identified main ear grain weight per plant to be direct
contributor to grain yield per plant having highest direct and
indirect effects in influencing grain yield per plant via total ear
weight, plant height, main ear grain number, growth rate, dry
fodder weight, 500-grain weight, ear length, grain filling rate
and days to 50% flowering. High alcohol yield was expected per
unit of grain.