PROGRESS FROM SELECTION OF SOME MAIZE CULTIVARS’ RESPONSE TO DROUGHT IN THE DERIVED SAVANNA OF NIGERIA
ABSTRACT: Field experiments
were conducted to investigate the variations in sixteen maize genotypes in
relation to drought tolerance. The experimental set up was subjected to drought
stress after five weeks of planting for three weeks before data on morphological
and yield characters of maize genotypes were [DBO1] obtained for three cropping
years. Plant height and grain yield of Bodija yellow maize were the highest
overall. There was a significant difference among genotypes for drought stress
resistance and Bodija yellow maize showed the most tolerance, while TZBR Comp 1
– C1 S2 510 genotype was the least. First principal component axis (Prin 1) had
the highest contribution to the variation of the morphological, yield and
drought tolerance traits. Prin 1 was highly related to the morphological and
yield characters more than to the drought resistance. [U2] Plant height was
negatively and strongly correlated (p<0.01) with stem height, number of
leaves, stem girth, leaf length, leaf width and week after planting, but
negatively correlated with the drought resistance. Therefore, Bodija yellow
maize should be considered as parent material in breeding for the development
of drought tolerant traits in maize.
Author: O. J. Olawuyi, Bello
O.B., C. V. Ntube, A. O. Akanmu
Journal Code: jppertaniangg150015
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