Menkir A., Gedil M., Tanumihardjo S., Adepoju A., Bossey B.
International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320 Ibadan, Nigeria; University of Wisconsin, 273 Nutritional Science, 1415 Linden DY, Madison, WI 53706, United States
Menkir, A., International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320 Ibadan, Nigeria; Gedil, M., International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320 Ibadan, Nigeria; Tanumihardjo, S., University of Wisconsin, 273 Nutritional Science, 1415 Linden DY, Madison, WI 53706, United States; Adepoju, A., International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320 Ibadan, Nigeria; Bossey, B., International Institute of Tropical Agriculture (IITA), Oyo Road, PMB 5320 Ibadan, Nigeria
The present study examined the effect of crossing parental lines from two AFLP-based groups on carotenoid accumulation and agronomic performance in hybrids, which were tested in four environments in Nigeria. Environments, hybrids and hybrid × environment interactions had significant effects on carotenoid content. Hybrids had consistent carotenoid levels across test environments. The correlations between carotenoids produced in a specific branch of the biosynthetic pathway were significant and positive. Environments, hybrids and hybrid × environment interactions had significant effects on grain yield and other traits in this study. Several hybrids with high provitamin A content that were competitive to a commercial hybrid in grain yield and other traits were identified in this study. Selection of parental lines with high provitamin A content and desirable agronomic traits from different molecular-based groups may serve as the basis for developing hybrids with greater expression of heterosis in productivity and concentrations of provitamin A carotenoids. © 2013 Elsevier Ltd. All rights reserved.
Agronomic traits; Amplified fragment length polymorphisms; Carotenoids; Hybrids; Marker-based groups; Agronomy; Pigments; alpha carotene; carotenoid; agronomic trait; article; bioaccumulation; controlled study; cross breeding; grain yield; hybrid; maize; Nigeria; nonhuman; plant environment interaction; Zea mays; AFLP (amplified fragment length polymorphism); Agronomic traits; Carotenoids; Hybrids; Marker-based groups; Amplified Fragment Length Polymorphism Analysis; Biological Markers; Carotenoids; Hybridization, Genetic; Nigeria; Plant Extracts; Zea mays