层次灰色准优势分析模型及应用

灰色准优势分析是重要的系统分析方法之一。为了克服已有灰色准优势分析模型没有考虑不同系统行为特征重要性差异及不能应用于由多层次相关因素构成的复杂系统分析的局限性,本引入加权平均合成法构造了复杂系统不同层次上相关因素绝对关联度的计算方法,建立了具有更广泛应用领域的层次灰色准优势分析模型,并以江苏省科技系统为例进行实证分析,验证了所建模型的有效性和实用性。本的结果拓展了灰色准优势分析的应用范围,为科学分析由多层次相关因素构成的复杂系统提供了一个新途径。

HIERARCHIC GREY QUASI-PREFERRED ANALYSIS MODEL AND ITS APPLICATION

The application of dwarfing traits has greatly increased the yields of wheat, rice and other crops, leading to the "Green Revolution" occurred around the world in the last century. So far, several genes responsible for dwarfing traits have been cloned. The dwarfing genes showed a function to interfere with the action or biosynthesis of the gilbberellin (GA) plant hormones. Wheat Rht genes encode growth repressers and their functions could be normally suppressed by GA. Rice sd1 gene encodes a defective enzyme (GA20ox)with the key role in the GA-biosynthetic pathway. Similarly, the recessive mutation of rice sdl can be restored to normal height by application of GA.