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从开始广泛研究粒用高粱并将其应用于生产时候起,学者们就曾观察到一些矮化突变的情况。根据现代的概念,决定高粱株高的节间长度由四个主基因和一个修饰复合体所控制。而且,这些控制茎缩短的基因一般呈累加效应,一个隐性位点平均使株高降低30厘米。矮化基因在粒用栽培高粱的推广上起重要作用,因为更有利于机械化收获。1975年我们从温室栽培的粒用高粱杂种“少先队员878”F_3中发现了一棵矮化株。矮化株抽穗比原始类型早7天,株高20厘米。套袋自交的种子于当年春
Since the beginning of extensive research on sorghum for grain and its application to production, scholars have observed some dwarf mutations. According to modern concepts, the internode length that determines sorghum plant height is controlled by four major genes and one modification complex. Moreover, these genes that control stem shortening are generally additive effects, with one recessive site reducing plant height by an average of 30 cm. Dwarfing genes play an important role in the promotion of grain-grown sorghum because they are more conducive to mechanized harvesting. In 1975 we found a dwarf strain from a greenhouse-grown grain sorghum hybrid, “Pioneer 878” F_3. Dwarf plant heading 7 days earlier than the original type, height 20 cm. Bagging self-seeding seeds in the spring