Back to Search Start Over

Screening maize for drought tolerance in the Guinea savanna of West and Central Africa

Authors :
Alpha Y. Kamara
M. A. B. Fakorede
Baffour Badu-Apraku
S. Dapaah
Abebe Menkir
Source :
Cereal Research Communications. 33:533-540
Publication Year :
2005
Publisher :
Springer Science and Business Media LLC, 2005.

Abstract

Full-sib families derived from Pool 16 DT, a tropical maize ( Zea mays L.) population, were evaluated in the 1995/96 and 1997/98 dry seasons, using two sites each season in Cote d’Ivoire. In all sites, the crop was irrigated from planting to about 2 weeks before anthesis, irrigation was discontinued thereafter for the rest of the season in one site in 1995 and both sites in 1997. Irrigation was continued till maturity in the second site in 1995. The means and ranges showed that the induced stress environments produced significantly lower grain yield, fewer ears per plant (EPP) and lower grain moisture percentage than the non-stressed site. The coefficients of variation (CVs) associated with the stressed environment were consistently larger than those associated with the non-stressed environment. Similarly, the coefficients of determination (R 2 ) values were generally higher for the non-stressed than the stressed site. Only 7 families were common to the highest-yielding 20 % of the 90 families in each eva...

Details

ISSN :
17889170 and 01333720
Volume :
33
Database :
OpenAIRE
Journal :
Cereal Research Communications
Accession number :
edsair.doi...........586e2822182d241972d0b42bc15f5d7c
Full Text :
https://doi.org/10.1556/crc.33.2005.2-3.116