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Performance of CIMMYT maize germplasm in the drought stressed areas of Ethiopia

By: Nigussie, M | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Bogale, G [coaut.] | Ransom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C [eds.] | Tolessa, B [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Addis Ababa (Ethiopia) CIMMYT : 1997ISBN: 92-9146-025-7.Subject(s): Drought stress AGROVOC | Ethiopia | Genetic stability | Genotype environment interaction AGROVOC | Germplasm | Production factors | CIMMYT | Zea mays AGROVOCDDC classification: 633.15 Summary: Twenty-one early maturing experimental maize populations were evaluated in the drought stressed areas of Ethiopia 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 ear effects on grain yield. Genotypes 92 SEW-1, Pool 16 C20 and Pool 18 Sequia, with regression coefficients close to 1.0 and small deviations from regression, were fairly stable across environments and had mean yields above the grand mean. Genotypes 92 SEW-2, and TEWF SYN/Pool 27 were more productive where growing conditions were relatively favorable. Hence, it is suggested that genotypes 92 SEW-1, Pool 16 C20 and Pool 18 Sequia have potential for future use. Moreover, the study has shown the usefulness of stability analysis to select suitable maize varieties either for specific or general adaptation.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.15 EAS No. 5 (Browse shelf) 1 Available 1J624172
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Twenty-one early maturing experimental maize populations were evaluated in the drought stressed areas of Ethiopia 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 ear effects on grain yield. Genotypes 92 SEW-1, Pool 16 C20 and Pool 18 Sequia, with regression coefficients close to 1.0 and small deviations from regression, were fairly stable across environments and had mean yields above the grand mean. Genotypes 92 SEW-2, and TEWF SYN/Pool 27 were more productive where growing conditions were relatively favorable. Hence, it is suggested that genotypes 92 SEW-1, Pool 16 C20 and Pool 18 Sequia have potential for future use. Moreover, the study has shown the usefulness of stability analysis to select suitable maize varieties either for specific or general adaptation.

English

9712|AGRIS 9702

Jose Juan Caballero

CIMMYT Publications Collection

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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org