Environmental stability of iron and zinc concentrations in grain of elite early-maturing tropical maize genotypes grown under field conditions

Assessment of the stability of micronutrients is important in breeding for the enhanced nutritional quality of staple food crops as a means to alleviate malnutrition. Twenty early-maturing elite tropical maize (Zea mays L.) genotypes were evaluated over 2 years at three locations representing three...

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Bibliographic Details
Published in:The Journal of agricultural science 2004-10, Vol.142 (5), p.543-551
Main Authors: OIKEH, S. O., MENKIR, A., MAZIYA-DIXON, B., WELCH, R. M., GLAHN, R. P., GAUCH, G.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Corn
Crops and Soils
Field study
Fundamental and applied biological sciences. Psychology
Genotype & phenotype
Genotypes
Grain
Iron
Malnutrition
Micronutrients
Nutritive value
Statistical models
Zinc
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Summary:Assessment of the stability of micronutrients is important in breeding for the enhanced nutritional quality of staple food crops as a means to alleviate malnutrition. Twenty early-maturing elite tropical maize (Zea mays L.) genotypes were evaluated over 2 years at three locations representing three distinct agroecologies in West and Central Africa (WCA). The objectives were to analyse the pattern of genotype×environment interactions (GEI) and environmental stability of iron and zinc concentrations in grain using the Additive Main Effects and Multiplicative Interaction (AMMI) statistical model. Results indicated that the effects of genotypes, environments and GEI were significant (P
ISSN:0021-8596
1469-5146
DOI:10.1017/S0021859604004733