| 小麦纹枯病生防放线菌株筛选及其防效初步研究 |
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| 引用本文： | 王玲,王远宏,袁虹霞,邢小萍,李洪连.小麦纹枯病生防放线菌株筛选及其防效初步研究[J].河南科学,2005,23(4):527-530. |
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| 作者姓名： | 王玲 王远宏 袁虹霞 邢小萍 李洪连 |
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| 作者单位： | 河南农业大学植保学院,河南郑州,450002;河南农业大学植保学院,河南郑州,450002;河南农业大学植保学院,河南郑州,450002;河南农业大学植保学院,河南郑州,450002;河南农业大学植保学院,河南郑州,450002 |
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| 基金项目： | 国家粮食丰产科技工程河南课题(2004BA520A06-11)，国家“十五”重大科技专项“食品安全关键技术应用的综合示范”(2001BA804A30)，河南省自然科学基础研究项目资助(0311030800) |
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| 摘 要： | 从小麦根际和土壤中分离到161个放线菌株.经平板抑菌测定,发现有7个菌株对小麦纹枯病菌表现出较强的抑菌作用活性.菌株发酵液抑菌测定结果表明,S024菌株抑菌活性最好,菌丝生长抑制率达78.6%.室内盆栽试验S024菌株发酵液对纹枯病的防效为45.38%,田间小区防效达到63.21%,并能提高小麦种子发芽率,促进幼苗的生长.
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| 关 键 词： | 小麦纹枯病 放线菌 筛选 防效 |
| 文章编号： | 1004-3918(2005)04-0527-04 |
| 修稿时间： | 2005年6月4日 |
Study on the selection and control-efficiency of Actinomycetes for Biocontrol of Wheat Sharp eye-spot |
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| WANG Ling,WANG Yuan-hong,Yuan Hong-xia,Xing Xiao-ping,LI Hong-lian.Study on the selection and control-efficiency of Actinomycetes for Biocontrol of Wheat Sharp eye-spot[J].Henan Science,2005,23(4):527-530. |
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| Authors: | WANG Ling WANG Yuan-hong Yuan Hong-xia Xing Xiao-ping LI Hong-lian |
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| Abstract: | 161Actinomycetes strains were isolated from rhizosphere of wheat and soil.Seven strains was screened out from them,which have effective inhibitiion on the growth of pathogen(Rhizoctonia cerealis).However,the strain S 024 is the best one on inhibiting pathogen with the78.6%mycelia growth decrease.The effect of fermenting filtrate of S 024 on controlling disease was test in pots and plots.The results showed that the fermenting filtrate of S 024 can control wheat sharp eyespot effectively,with45.38%disease index decline in pots and63.21?cline plots.On the other hand,the fermenting filtrate of S 024 can increase germination rate of wheat seed,and promote the growth of seedling. |
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| Keywords: | wheat sharp eyespot Rhizoctonia cerealis Actinomycetes S 024 strain inhibiting effect |
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