Journal
REVISTA CIENCIA AGRONOMICA
Volume 42, Issue 1, Pages 100-107Publisher
UNIV FEDERAL CEARA, DEPT GEOL
DOI: 10.1590/S1806-66902011000100013
Keywords
Vigna unguiculata; Leaf area index; Chlorophyll content
Categories
Ask authors/readers for more resources
The genotypes selection for drought tolerance is very important for world food production, principally in arid regions or sites with irregular rain distribution. The objective of this work was to identify cowpea genotypes with drought tolerance and water stress sensitivity characteristics. Two experiments were carried out with 20 treatments and four replications, one under water deficit during reproductive phase and another one under full irrigation. The water deficit was obtained applying half the water depth required by cowpea. The leaf area index, chlorophyll content, grain components and grain yield were evaluated. The water deficit reduced 20% the leaf area index, 16% the chlorophyll content, 175% the pod number per plant and 60% the grain yield. The genotypes Santo Inacio and Tracuateua-192 present sensitivity to water deficit in soil and BRS-Paraguacu, Pingo-de-ouro-1-2 and Pingo-de-ouro-2 show behavior for drought tolerance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available