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| 大豆疫霉在江苏省适生性的初步研究 | |
| 引用本文： | 吴浩,王良华,吴新华,郑小波.大豆疫霉在江苏省适生性的初步研究[J].南京农业大学学报,2002,25(2):39-42. |
| 作者姓名： | 吴浩 王良华 吴新华 郑小波 |
| 作者单位： | 1. 南京农业大学农业部病虫监测与治理重点开放实验室,江苏南京,210095 2. 南京出入境检验检疫局,江苏南京210001 3. 江苏出入境检验检疫局,江苏南京,210001 |
| 基金项目： | 江苏出入境检验检疫局立项课题 (KJ18 1999) |
| 摘 要： | 通过对苗期大豆下胚轴创伤接种，测定了大豆疫霉菌株S317（分离自中国东北）和Pmg-1,Pmg-2,Pmg-3（分离自进口美国2号大豆携带的土壤）对江苏省30个大豆品种的致病性。结果显示：30个大豆品种对菌株S317高度感病；27个大豆品种对菌株Pmg-1,Pmg-2，Pmg-3高度感病，另有3个品种表现为抗病。同时，测定了供试菌株的卵孢子在南京土壤中的存活能力。结果供试菌株的卵孢子在土壤中埋存9个月，仍有6．6％－13．3％具有萌发能力。上述结果表明，大豆疫霉在江苏省具有较强的适生性，一旦传入可能对江苏大豆生产构成威胁。 |
| 关 键 词： | 大豆 疫霉 江苏 适生性 大豆品种 致病性 土壤 存活能力 |
| 文章编号： | 1000-2030(2002)02-0039-04 |
| 修稿时间： | 2001年9月1日 |
A preliminary study on the fitness of Phytophthora sojae to the environment in Jiangsu Province,China |
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| WU Hao ,WANG Liang hua ,WU Xin hua ,ZHENG Xiao bo.A preliminary study on the fitness of Phytophthora sojae to the environment in Jiangsu Province,China[J].Journal of Nanjing Agricultural University,2002,25(2):39-42. | |
| Authors: | WU Hao WANG Liang hua WU Xin hua ZHENG Xiao bo |
| Institution: | WU Hao 1,WANG Liang hua 2,WU Xin hua 3,ZHENG Xiao bo 1* |
| Abstract: | The pathogenicity and survival ability of 4 isolates of Phytophthora sojae were determined by inoculating them to hypocotyls of soybean seedlings of 30 cultivars and by recovering their oospores from soils.The isolates included S317 from China,Pmg 1,Pmg 2 and Pmg 3 newly isolated from soils carried around the soybean seeds imported from The United States.Based on our data,all of the cultivars were susceptible to isolate S317.Twenty seven cultivars were susceptible to each of isolates Pmg 1,Pmg 2 and Pmg 3,and only 3 cultivars were resistant to them.The 4 isolates also were tested for survival potential in the fields.Oospores were able to germinate under laboratory conditions following burying in field soils for 9 months.Therefore, P sojae can well fit the environment in Jiangsu Province and the foreign inocula could threaten the production of soybean in the area if they are introduced. |
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