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采用黄化苗下胚轴接种法,利用大豆疫霉菌株Pm8对来自不同地区的355份大豆品种(系)进行疫霉根腐病接种鉴定。结果表明:96份材料表现为抗病类型,占鉴定总数的27%,106份表现为中间类型,占总数的30%。在所鉴定的品种(系)中,北京、浙江等省(市)抗大豆疫霉菌株Pm8的资源比较丰富;吉林、四川等省的抗性资源较贫乏。研究结果为大豆抗病育种选择亲本和利用品种布局进行大豆疫霉根腐病生态控制提供了依据。
The yellow soybean seedling hypocotyls inoculation method, the use of Phytophthora sojae Pm8 355 from different regions of soybean varieties (lines) Phytophthora root rot inoculation identification. The results showed that 96 species were resistant to disease, accounting for 27% of the total number of identifications and 106 were intermediate types, accounting for 30% of the total. Among the identified cultivars (lines), Beijing, Zhejiang and other provinces (cities) resistant to soybean Phytophthora pneumoniae strain Pm8 rich resources; Jilin, Sichuan and other provinces relatively scarce resources. The results provided the basis for the selection of parents for disease-resistant breeding of soybean and the ecological control of P. sojae root rot using the layout of varieties.