The Regional Distribution And Influence Factor Analysis Of Hybrid Breeding Corn In Inner Mongolia

This dissertation takes the recent years' crops seed market, the quality, the variety management and the hybrid corn seed production in Inner Mongolia as a background. Based on the hybrid corn seed production registration forms in Inner Mongolia from 2003 to 2007, the distribution of breeding area, variety quantity, the quantity of breeding enterprise and the main production variety of different years and different regions have been formed through screening, sorting, classification and complying. Firstly, we determine the main breeding cities, the areas, the villages and towns. Secondly,Using 7 targets by room examining, namely, production purity, the moisture content, the germination percentage, the weight of a thousand seeds, the thick protein content, the crude fat content, the starch content, of zhedan 7, sidan 19 and zhedan 39 of different year and different production, the distribution of seed quality is taken shape in some regions. In this foundation, we analysis the factors of affecting the distribution and the functions from the region natural ecological conditions, the region economy development conditions, seed multiple perspectives, market conditions, industrial policy and so on. Finally, the superiority breeding cities and the areas in Inner Mongolia have been cleared, and the potential of development and the main limiting factors have carried on the analysis.The research indicated that, the accumulated temperature of breeding regions is the main natural factor deciding the varieties regional distribution and the irrigation and transportation conditions are main factors deciding the bases regional distribution. Regional production order and breeding cost directly decide the choice of enterprises for breeding regions. The regional main enterprise is the local leadership which promotes the form and development of breeding industry. Under the current breeding income level, the farmer won't choose the corn breeding generally in the regions where economy level of development is high and the crop production structure is multi-dimensional. Supply-demand relation and price changes directly influence breeding area and variety distribution. The state investment has the lasting influence on the breeding regional distribution through improvement on infrastructure. In the situation of carrying on the cultivation management according to the breeding technology regulations, the region ecological environment difference cannot obviously affect the hybrid corn seed quality distribution.