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七十年代以来,在玉米雄性不育性的利用研究上,进一步开展了利用核不育性,选育新的抗病细胞质不育类型,以及利用多种细胞质小育性来创造多质不育系等工作。彼斯克特(Beckett J B 1971)等,将从世界各地征集到的29种不同来源的细胞质雄性不育类型,根据其测交反应归类为四组,即 T、S、C 及未定组;属于 T 组的 T 型、Q 型、HA 型和 P 型均可严重感染 T 小种小斑病,属于 S 和 C 组的表现抗病。据另一些资料报导,S 组中的某些不育类型(如 M 型等),其植株的不育性由于不同修饰基因的作用,易受环境条件的影响。由此可见,在研究和利用玉米细胞质不育性的工作上,采用各种途径扩大细胞质类型,进一步选育具有不育性状稳定,高度抗病,并便于实现三系配套的新不育类型及其不育系,具有重要
Since the seventies, the utilization of male sterility in maize has been further explored by using nuclear infertility, breeding new disease-resistant cytoplasmic male sterility types and using multiple cytoplasmic fertility to create multiple-quality sterile Department and other work. Beckett JB 1971, etc. The 29 types of cytoplasmic male sterility types collected from all over the world are classified into four groups according to their cross-reaction, that is, T, S, C and undetermined groups; T group T type, Q type, HA type and P type can be severely infected with small seed patch of T race, belonging to the performance of S and C group disease resistance. According to other data, some of the sterility types (such as M type) in group S are susceptible to environmental conditions because of their sterility due to different modifying genes. Thus, in the research and utilization of maize cytoplasmic male sterility, a variety of ways to expand the cytoplasm type, and further breeding with sterility traits stable, highly resistant to disease and facilitate the realization of three new types of sterile and Its sterile line is important