Similarity-difference Theory and Its Applications in Wheat Breeding
Ruifeng Cui · Mailei zuowu xuebao · 2010
Similarity-difference theory is a new uncertainty theory which was proposed in view of similarity-difference phenomenon existing in crop breeding.The theory considered that the course of crop breeding was a decision process essentially which weighing up similarity and difference among the breeding objects and the breeding targets during which breeding workers screening better breeding objects.Because the process run through the crop breeding from beginning to end.It was summarized as a similarity-difference phenomenon in crop breeding.Comparing with routine breeding,a distinct characteristic of similarity-difference theory of crop breeding was that it could realize information,quantitative and scientific aspects of crop breeding,that had an important meaning for crop breeding developing from qualitative descriptive discipline to quantitative precision.The paper introduced applications of the theory and method in wheat parent classification,variety comparison,and pointed out its development prospects and further study direction so that it could provide a tool for breeding workers.