论文部分内容阅读
1955年以来,北美春小麦区再没有发生过秆锈病大蔓延(A. P. Roelfs,1978).秆锈病(致病菌:Puccinia graminis Pers. f.sp. Tritici)的有效控制是将根除伏牛花与利用寄生植物抗性相结合的结果.尽管上述地区秆锈病已被持续有效地控制了29年,但对于这种锈病的“专化”抗性或“垂直”抗性而言,一般则很难称其为持久抗性.有关解释小种专化抗性的研究不多,说法不一,总的认为,多基因抗性和特定的基因组合是持久抗性的基础.
No major spread of stem rust occurred in the North American spring wheat area since 1955 (AP Roelfs, 1978). The effective control of stem rust (Puccinia graminis Pers. F. Sp. Tritici) is the combination of eradication and utilization As a result of the combination of parasitic plant resistance, although the above-mentioned stem rust has been continuously and effectively controlled for 29 years, for the “specialization” or “vertical” resistance of this type of rust, It is difficult to call it a long-lasting resistance.For the explanation of racially specialized resistance is not much research, different opinions, the general view that multi-gene resistance and specific gene combination is the basis of long-lasting resistance.