不育系繁殖和杂交制种是杂种优势利用的中间环节,如何提高其结实率和产量,尽量减少繁殖与杂交制种的用地,仍是当前需要解决的问题之一。据有人观察研究,由于不育系雄性生殖细胞发育在四分子体以后,生理机能出现部分失调,可溶性糖的正常分解和淀粉的合成途径受到阻碍与干扰,使其得不到必要的能 Reproduction and cross breeding of CMS are the intermediate links of heterosis utilization. How to improve the seed setting rate and yield, and minimize the land use of breeding and hybrid seed production are still some of the problems to be solved. According to some observational studies, due to the male sterility of male sterile germplasm development in the tetradon after the physiological function of some disorders, the normal decomposition of soluble sugars and starch synthesis pathway are obstructed and interfere with, so that they do not get the necessary energy