论文部分内容阅读
自五十年代3197A高粱不育系问世以来,利用杂种优势生产的杂交高粱迅速发展,从而高粱的单位面积产量成倍增加。我国从六十年代开始推广杂交高粱,1975年高粱亩产308斤,比1952年增产近一倍。高粱单产大幅度提高,与杂交高粱的推广息息相关。本文着重探讨优质杂交高粱的性状优势,为培育亲本,组配优势大,配合力高的组合,提供参考。
Since the advent of the 3197A sorghum CMS in the 1950s, hybrid sorghum produced by heterosis has rapidly developed, yielding double the yield per unit area of sorghum. Since the 1960s, China began to popularize hybrid sorghum. In 1975, the output of sorghum was 308 kg per mu, nearly double that of 1952. Sorghum yield increased significantly, and the promotion of hybrid sorghum is closely related. This article focuses on the traits of high-quality hybrid sorghum traits, to cultivate the parents, the group with advantages of large, high combining ability to provide a reference.