TY  - BK
AU  - Seboksa,G.
AU  - Bogale,G.
AU  - Friesen,D.K.|Palmer,A.F.E.
AU  - Nigussie,M.
ED  - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Kenya
ED  - 7. Proceedings of the Eastern and Southern Africa Regional Maize Conference
TI  - Stability of drought tolerant maize genotypes in the drought stressed areas of Ethiopia
SN  - 970-648-120-6
U1  - 338.16 
PY  - 2002///
CY  - Nairobi (Kenya)
PB  - KARI|CIMMYT
KW  - Drought resistance
KW  - Ethiopia
KW  - Fields
KW  - Food crops
KW  - Genotype environment interaction
KW  - AGROVOC
KW  - Industrial crops
KW  - Maize
KW  - Stress
KW  - Yield factors
KW  - Zea mays
KW  - Plant breeding
KW  - CIMMYT
KW  - KARI
N2  - Drought stressed areas devoted to maize (Zea mays L.) production occupy 40% of the maize growing area but contribute only about 20% to the total maize production in Ethiopia. Unavailability of suitable maize varieties is responsible for such a yield gap. Taking this problem into account the Melkasa Maize Programme introduced and evaluated 400 experimental maize populations at Melkasa Research Center maize quarantine field. Then, 19 promising maize genotypes were selected and evaluated at six locations for three years to determine their performance and stability. The combined analysis of variance showed highly significant (p < 0.01) genotype, environment, genotype x environment, and genotype x year effects on grain yield. Genotype DTP-1 C6 with regression coefficient close to 1.0 and small deviations from regression, was fairly stable across environments and had mean yield above the grand mean. Genotypes Banswara 9331 and La Posta Seq. C5 were more productive where growing conditions were better. Hence, it is suggested that genotype DTP-1 C6 has potential for future use in the drought-prone areas of the country
ER  -