Grain yield and grain moisture content of maize hybrids containing different proportion of exotic germplasm
2005
Ivanovic, M. | Vasic, N. | Nastasic, A.(Naucni institut za ratarstvo i povrtarstvo, Novi Sad (Serbia and Montenegro))
The objectives of this study were to compare effects of the different proportions of tropical maize germplasm (via inbred NC298) in hybrids male parent, on grain yield and grain moisture content. Using direct crosses and back-crosses (between NC298, Mo17 and NS796 male lines) five male groups were formed containing 0, 25, 50, 75 and 100 percent of tropical germplasm, respectively (or one half in their corresponding hybrids). Each male parent group was tested with three female inbred-testers that belong to the Reid Yellow Dent heterotic group. The level of significance between mean values of hibrids containing the different proportion of NC298 line in male parent was estimated by F value using Repeated-Measure Design (RMD). The NC298 tropical germplasm inbred line of maize, could be incorporated into temperate breeding material comprising 25% of the foundation population proportion, for both grain yield and grain moisture content.
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