玉米自交系杂种优势群划分方法的比较

玉米种质资源是人类宝贵的物质财富,大量的种质资源是开展玉米育种的基础,合理、准确地划分玉米杂种优势群,建立相应的杂种优势模式,才能有效地改良自交系和选配杂交组合,提高育种效率。通过对几种不同划分玉米杂种优势群的方法进行比较分析,表明分子标记技术在划分杂种优势群较其它方法具有优越性。

Comparison of Classification Methods of Maize Inbred Lines into Heterotic Advantage Group

Maize germplasm resources are human valuable material wealth,a large number of germplasm resources are the basis of maize breeding.Dividing reasonably and accurately maize heterotic groups and establishing heterotic corresponding model,that inbred lines,hybrid combination of matching and breeding efficiency could be effectively improved.In this paper,it showed that the molecular marker technology in heterosis group had advantages over other methods,by comparing the several different classification methods o...