| 载银无机抗菌制剂对大豆根腐病的防治效果 |
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| 引用本文： | 孙超,郭荣君,李世东.载银无机抗菌制剂对大豆根腐病的防治效果[J].植物病理学报,2006,36(6):550-554. |
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| 作者姓名： | 孙超 郭荣君 李世东 |
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| 作者单位： | 1 中国农业科学院植物保护研究所植物病虫害生物学国家重点实验室, 北京 100081;2 新疆农业大学农学院, 乌鲁木齐 830052 |
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| 基金项目： | 中国可持续型农业技术研究发展计划;国家粮食丰产科技工程项目 |
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| 摘 要： | 测定了广泛用于工业和日用品的载银无机抗菌制剂Zeomic和AM1对大豆根腐病重要病原菌Fusarium oxysporum、Fusarium solani和Rhizoctonia solani孢子萌发和菌落扩展的抑制作用。结果表明,Zeomic在浓度为500 mg/L时可以完全抑制F. oxysporum和F. solani的孢子萌发,但对F. oxysporum、F. solani和R. solani菌落扩展的抑制作用较弱,分别为7.4%、0.0%和3.7%。AM1对病菌孢子萌发的抑制作用随浓度的升高而增强,在浓度为250 mg/L时对F. solani孢子萌发的抑制率为18.8%,到1 000 mg/L时可完全抑制。但AM1在浓度为1 000 mg/L时对F. oxysporum的孢子萌发抑制率只有29.7%,表明不同菌类对AM1的敏感性不同。同一浓度下的AM1对F. oxysporum菌落扩展的抑制率大于对F. solani和R. solani菌落扩展的抑制作用,在500 mg/L时对病菌的抑制率分别为51.4%、14.6%和11.0%。温室内对大豆生长的调查结果表明,用种子重量0.05%和0.10%的AM1拌种对出苗和生长有促进作用,Zeomic用量在0.05%时不影响出苗、株高和根系干物质积累,但当用量增加至0.10%时,则表现对出苗和干物质累积的抑制作用。田间试验结果表明,500m g/L的AM1拌种对大豆根腐病防效为32.6%,与化学农药35%多克福包衣处理无显著差异,但比后者增产10.1%。由此说明,载银无机抗菌制剂具有用于农作物病害防治的潜力。
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| 关 键 词： | 载银无机抗菌制剂 大豆根腐病 防治 |
| 文章编号： | 0412-0914(2006)06-0550-05 |
| 收稿时间： | 2005-12-06 |
| 修稿时间： | 2005年12月6日 |
Control of soybean root rot disease with silver-carrying antimicrobial preparations |
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| SUN Chao,GUO Rong-jun,LI Shi-dong.Control of soybean root rot disease with silver-carrying antimicrobial preparations[J].Acta Phytopathologica Sinica,2006,36(6):550-554. |
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| Authors: | SUN Chao GUO Rong-jun LI Shi-dong |
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| Institution: | 1 State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, The Chinese Academy of Agricultural Sciences, Beijing 100081, China;2 College of Agronomy, Xinjiang Agricultural University, Urumuqi 830052, China |
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| Abstract: | Effect of silver-carrying antimicrobial preparations,Zeomic and AM_1,on spore germination and colony expansion of Fusarium oxysporum,Fusarium solani and Rhizoctonia solani,pathogens of soybean root rot disease in northeast of China was investigated.Results showed that Zeomic completely inhibited spore germination of F.oxysporum and F.solani at 500 mg/L,and slightly suppressed colony expansion of three pathogens with the rates of 7.4%,0.0% and 3.7%,respectively.AM_1 inhibited spore germination of F.solani with the rate of 18.8% at 250 mg/L and 100% at 1 000 mg/L,but only 29.7% at 1 000 mg/L for F.oxysporum,indicating a different sensitivity among the fungal species.AM_1 suppressed colony expansion of F.oxysporum more significantly than those of F.solani and R.solani,with the rates of 51.4%,14.6% and 11.0% at 500 mg/L,respectively.Greenhouse tests demonstrated that soybean seed treatment with AM_1 at(0.05%) and 0.10%(w/w)promoted emergence and seedling growth.Zeomic did not show any effects on(emergence),height and dry matter accumulation of seedlings at 0.05%,but negative effects on emergence and dry matter accumulation at 0.10%.Field tests using AM_1 treated seeds at 500 mg/L gave rise to 32.6%(reduction) of soybean root rot disease index,which was not significantly different from that treatment with 35% Duokefu,a chemical seed-coating preparation widely used in local farms at present.Soybean output was increased by 10.1% in comparison with that gained with chemical treatment.These data showed a potential of silver-carrying antimicrobial preparations in control of soybean root rot disease. |
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| Keywords: | silver-carrying antimicrobial preparation soybean root rot control |
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