【摘要】 用大穗高秆品种Akenohoshi与半矮生粳型系统Sc-TN₁的杂交后代F₅代6个品系及其亲本为材料,比较分析了晶系与亲本遗传性状的表现及其联系,说明通过改善sd-1基因的遗传背景,使半矮生性及其优良株型的特性与大库容量相结合是可能的,从而培育出有更高产量的一些新品系。更多还原

【Abstract】 Using six F5 strains from the progeny of the cross between the large ear, long-stalked variety Akenohoshi and the semidwarf variety Sc-TN1 and their parents, the genetic character appearance of the strains and the parents and the relationship between them are compared and analysed in this paper. The result shows that it is possible to combine semi-dwarf and its better planttype character with large sink character by improving the genetic background of sd-1 gene and some new higher yielding strains will be bred.更多还原