论文部分内容阅读
一、材料与方法本试验在院部农场进行,1979年以太谷核不育材料为母本,选用抗病、抗旱、矮秆、大穗等品种作父本,分别与其杂交,同年将各组合不育株获得的种子单粒点播,于1980年又选用上述几种类型亲本与各组合不育株杂交,组成丰×丰、抗×大、矮×矮等类型,将各组合不育株上收获的种子单粒点播,行长3尺,行距7.5寸,株距2寸。1981年随机抽取24个三
I. Materials and Methods The experiment was carried out on the farms of the academy. In 1979, the kuogu nuclear sterile material was used as the female parent, and the parents were crossed with the varieties resistant to disease, drought, dwarf and big spike, respectively. In the same year, On one hand, the seeds obtained from the sterile plants were spot-on-demand. In 1980, the above-mentioned types of parents were crossed with the sterile lines of each combination to form a variety of rich, resistant, large, short and short, Harvested seed single-on-demand, president of 3 feet, spacing 7.5 inches, spacing 2 inches. In 1981 randomly selected 24 three