Inheritance of and Interrelationships among Maize Kernel Traits and Elemental Contents1

Combining ability for concentrations and g/200 kernels of P, K, Mg, Fe, Zn, oil, and protein, and for kernel weight, volume, and density in a six‐parent diallel of maize (Zea mays L.) inbreds was examined. Correlations among certain variables were computed. Significant variation was detected among GCA effects for concentrations and g/200 kernels of all kernel constituents except K concentration but among SCA effects only for oil concentration. GCA and SCA effects were significant for kernel weight, volume, and density. Highly significant correlations were found between P and K, P and Mg, and K and Mg concentrations.