摘要
采用游动孢子灌根法对208份辣椒材料进行疫病抗性鉴定,并对比分析抗性与发病速度的相关性。结果表明,不同材料之间的抗性差异较大,幼苗病株率为0~100%,病情指数为0~100,表现高抗的材料有18份,表现抗性的材料有23份,中抗材料有33份,感病材料为134份。供试材料发病速度研究结果显示,一些材料病情指数相近,但它们之间的前期和后期发病速度差异较为明显。分析认为,在抗性鉴定试验中应重点考虑前期发病速度,其鉴定结果方能真实全面反映材料的抗感程度。
The resistance of 208 pepper materials to Phytophthora capsici was identified by drenching them with zoosperm,and the correlation between resistance and disease rate was analysed. The results showed that the resistance to phytophthora blight of different hot pepper materials varied widely,the morbidity of seedlings was from 0 to 100%,the disease index varied from 0 to 100,there were 18 varieties with high resistance,23 varieties with resistance,33 varieties with moderate resistance and 134 susceptible varieties in 208 tested varieties.The analysis results of disease rate of the materials showed that some materials had similar disease index,but the difference among the early and late stages in disease rate was significant.The analysis showed that the identification results could better reflect the resistance of the materials based on early stage disease rate.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2017年第4期691-698,共8页
Acta Agriculturae Universitatis Jiangxiensis
基金
江西省蔬菜产业技术体系资助项目(JXARS-06)
江西省现代农业科研协同创新专项(JXXTCX2015005-004)~~
作者简介
何烈干（1980-）,助理研究员,主要从事蔬菜病害研究,heliegan24@163.com;
通信作者：马辉刚,研究员,mahg1997@sina.com.
