本文对白叶枯细菌Ⅰ至Ⅴ种群的抗性和石炭酸反应之间的关系进行了研究,进而,提出该抗性的一种有效选择方法。分析连锁关系表明,三个基因位点 Xa—1、Xa—Kg 和 Ph 相互间紧密联锁。试验结果指明,对菌群Ⅱ,Ⅲ和Ⅳ的数量抗性和对菌群Ⅰ的质量抗性(受 X a—1~h 控制)相关,并且,菌种Ⅱ.Ⅲ和Ⅳ的侵染程度与控制质量抗性的基在剂量成反 In this paper, the relationship between the resistance of bacterial populations Ⅰ to Ⅴ and the reaction of carbolic acid was studied. Furthermore, an effective selection method for this resistance was proposed. Analysis of the linkage revealed that the three gene loci Xa-1, Xa-Kg and Ph were closely linked to each other. The test results indicated that the quantitative resistances to the colonies II, III and IV were related to the mass resistance to the colonies I (controlled by Xa-1 to h), and the degree of infection of the strains II.III and IV The base with the control of mass resistance is inversely proportional to dose