African Journal of Biotechnology
Subscribe to AJB
Full Name*
Email Address*

Article Number - BFC45DD7013


Vol.8(11), pp. 2518-2522 , June 2009
DOI: 10.5897/AJB09.296
ISSN: 1684-5315
 Total Views: 195
 Downloaded: 150


Full Length Research Paper

Combining ability for maize grain yield and other agronomic characters in a typical southern guinea savanna ecology of Nigeria


Bello, O. B.* and Olaoye, G.




Department of Agronomy, University of Ilorin, Ilorin, Nigeria.


Email: obbello2002@yahoo.com






 Accepted: 22 May 2009  Published: 30 June 2009

Copyright © 2009 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


Field experiments were conducted at the University of Ilorin Teaching and Research Farm in 2005 and 2006 cropping seasons with the objective to evaluate the combining ability for maize grain yield and other agronomic characters in 10 open pollinated maize varieties, which have been selected for high yield and stress tolerance. General combining ability (gca) and year (y) effects were significant for all the parameters except plant height, while specific combining ability (sca) and gca x year effects were significant only for grain yield. However, Tze Comp4 Dmr Srbc2, Tze Comp4 C2 and Acr 94 Tze Comp5 which are good general combiners for maize grain yield, also showed positive significant gca x year effects for flowering traits. Significant sca x year interaction effects were recorded for maize grain yield and days to flowering, with Hei 97 Tze Comp3 C4 combining very well with 3 parents (Acr 90 Pool 16-Dt, Tze Comp4-Dmr Srbc2 and Tze Comp4 C2). These parents and their hybrids probably have genes that can be introgressed into other promising lines in developing early maturing and high yielding varieties for cultivation in the Nigeria savannas.

Key words: Zea mays L., general combining ability, specific combining ability, grain yield, Nigeria savannas.


APA Bello, O. B., & Olaoye, G. (2009). Combining ability for maize grain yield and other agronomic characters in a typical southern guinea savanna ecology of Nigeria. African Journal of Biotechnology , 8(11), 2518-2522.
Chicago Bello, O. B. and Olaoye, G.. "Combining ability for maize grain yield and other agronomic characters in a typical southern guinea savanna ecology of Nigeria." African Journal of Biotechnology 8, no. 11 (2009): 2518-2522.
MLA Bello, et al. "Combining ability for maize grain yield and other agronomic characters in a typical southern guinea savanna ecology of Nigeria." African Journal of Biotechnology 8.11 (2009): 2518-2522.
   
DOI 10.5897/AJB09.296
URL http://www.academicjournals.org/journal/AJB/article-abstract/BFC45DD7013

Subscription Form