采用离体叶法和游动孢子灌根法对辣椒材料进行了疫病抗性鉴定,并对两种方法鉴定结果进行比较.结果表明,供试的材料中感病材料所占比例最大,其中V34-1、V7-3、B6等材料高度感病,而T3-1、富根、V48-2、T10-1等有极强的抗疫病能力,几乎达到免疫级别.研究发现,越感病的材料其发病速度越快.不同的菌株存在致病力分化,不同菌株的致病辣椒品种不同,同一个辣椒材料对不同的菌株表现不同的抗病性.也讦某一致病率大的菌株对一辣椒材料不致病,而致病率小的菌株却对其表现为致病.对两种方法进行相关性分析,两者的相关性系数为0.597 6,相关性程度较为显著,18份材料中有14份表现一致,为77.78％,表明两种方法所得试验结果吻合程度高.%The resistance of pepper materials to Phytophthora capsici was identified by in vitro leaf and root-irrigating methods and the ideatification rusults assessed by the two methods were compared.The results showed that the susceptible materials accounted for the largest proportion of the tested materials,in which V34-1,V7-3,B6 etc.were susceptible seriously,while T3-1,Fugen,V48-2,T10-1 etc.had strong anti-Phytophthora capsici capacity that nearly reached the level of immunity.The more susceptible the materials were,the shorter time they were infected by Phytophthora capsici.There were differences in pathogenicity among different strains.Diffenrent strains were pathogenic to diffenrent pepper materials,and the same material showed diffenrent resistance to diffenrent strains.Maybe some strain with significant pathogenicity rate wasnt pathogenic to a pepper material,but strains with paltry pathogenicity rate were pathogenic to the material.The correlations analysis of the two methods showed that the correlation coefficient was 0.597 6,which showed more significant correlations between them.The resistant performance of 14 varieties were unanimous in 18 tested ones,and the result by the in vitro leaf method had 77.78％ similarity to that by the root-irrigating method.
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