Evaluation of Common Bean (Phaseolus vulgaris L.) Genotypes of Diverse Growth Habit under Sole and Intercropping with Maize (Zea mays L.) in Southern Ethiopia
Abstract:
Seven released, one local and two potential, totally
10, common bean (Phaseolus vulgaris L.) genotypes representing
three growth habit groups were tested under sole cropping and in association
with hybrid maize (Zea mays L.). The experiments were conducted
during the 2005 and 2006 cropping seasons in southern Ethiopia to compare
genotypes and growth habit groups of common bean and to identify genotypes
that give maximum intercropping advantage. A split-plot design with three
replications was used with cropping system and genotype as main and sub
plot factors, respectively. The bean genotypes varied significantly in
productivity under both cropping systems. Determinate and bush types performed
better than indeterminate and semi-climbing types, respectively. The mean
yield from all bean genotypes was used for standardizing and specific
genotype combinations showed a mean land equivalent ratio as high as 1.34.
Grain yields and ranks of the bean genotypes were positively correlated
between the two cropping systems. Furthermore, there was no significant
genotype by cropping systems interactions indicating that genotypes selected
for performance under sole cropping could perform well in association
with hybrid maize. Using improved bush bean cultivars such as DOR-554
and AFR-772 in association with hybrid maize could enhance intercropping
advantage.
W. Worku , 2008. Evaluation of Common Bean (Phaseolus vulgaris L.) Genotypes of Diverse Growth Habit under Sole and Intercropping with Maize (Zea mays L.) in Southern Ethiopia. Journal of Agronomy, 7: 306-313.
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