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Sudan Journal of Agricultural Research
Response
of some sorghum hybrids and their parents to nitrogen fertiliztion
A.B. Mohamed1, A.M. Badreldin 2, N.D. Mohamed1
Abstract:
Four sorghum sorghum bicolor L. (Moench) hybrids and their parents were grown
with three levels of N (0, 43, 86 kgN/ha) at the University of Gezira
Research Farm, Wad Medani, Sudan. Nitrogen significantly influenced all
characters studied (% protein in seedling and grain, grain yield, days to
50% flowering and stalk dry weight), except 100 seed weight. Positive
heterosis were shown with yield and negative for days
to 50% flowering and grain protein. The magnitude of heterosis was found to
be highly manifested when nitrogen was applied, indicating the superiority
of hybrids under high agricultural inputs. Grain yield showed significant
positive correlation with seedling protein for parents and stalk dry weight
for both hybrids and parents and it was positively correlated with 100 seed
weight for hybrids only.
Keywords:
Sudan Journal of Agricultural Research Vol. 1 (1998) PP. 9-12
