engleski

Inheritance of mineral concentrations in kernels of elite maize inbred lines

Mineral deficiency has been recognized as the most important nutritional problem especially in many developing countries. One sustainable agricultural approach of solving the problem is to enrich major staple food crops with minerals through plant breeding. Although maize lacks in some minerals, humans and animals can obtain at least part of their nutritional requirements from maize grain. There is existence of sufficient genetic variation and workable heritabilities to improve mineral values in maize kernels. It was demonstrated that genetic background of inbred lines played a central role in the concentration level of some minerals (Fe, Zn, B, Cu and Mn) in maize varieties. Diallel analysis of the F1 generation suggested a simple inheritance of concentrations of the six minerals due to consistently non-significant effects of specific combining ability. However, results of generation mean analysis across several populations of the same genetic material showed inconsistent genetic effects estimates. Therefore, further quantitative genetic as well as marker-based studies are needed to elucidate the inheritance of mineral concentrations in maize kernels.

inheritance; maize; mineral concentration; kernel

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