Discussion of Key Germplasm Construction Suitable for Mechanical Harvesting Based on the Main Varieties in Different Maize Ecoregions
Breeding new varieties of maize suitable for mechanical grain harvesting is a crucial approach to de-crease the cost and enhance economic performance.Considering the actual requirements for mechanical-harvested maize in production to analysis of the main characteristics that affect mechanical harvesting and then establishing the mechanical-harvested breeding goals.Under the climatic conditions,mainly spreading varieties,germplasm and pattens of heterosis in different ecoregions,discussing the construction of the key germplasm suitable for mechanical harvesting and,meanwhile,setting the strategies that the utilization of the heterosis pattens and new varieties breed-ing.Moreover,the practices of improving the mechanically-harvested germplasms and breeding new varieties would provide very useful information in the prosses of realizing maize grain mechanical harvesting.
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