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当前位置: 首页 > 文章 > 拮抗链霉菌S-5对棉花病害的防治作用 中国农学通报 2002,18 (2) 26-29
Position: Home > Articles > Effects of Streptomyces Strain S-5 on Control of Cotton Root and Seedling Diseases Chinese Agricultural Science Bulletin 2002,18 (2) 26-29

拮抗链霉菌S-5对棉花病害的防治作用

作  者：
张克诚;李研学;贾恩宽;林德忻;张福锁
单  位：
中国农业大学植物营养系;朝阳市植保站;郓城县植保站;中国农业科学院植物保护研究所
关键词：
链霉菌;生物防治;抗生素;棉花苗期病害;棉花枯萎病;棉花黄萎病
摘  要：
通过室内和田间试验测定了从小麦根际筛选的一株链霉菌 (Streptomycesspp .)S - 5对棉花苗期病害根腐病、红腐病、炭疽病和棉花枯、黄萎病菌的防病效果。抑菌作用测定结果表明 ,链霉菌S - 5具有广谱抑菌作用 ,对棉花枯黄萎病菌抑菌作用明显。生物测定 ,链霉菌S - 5促进棉花幼苗生长 ,降低枯黄萎病的发病率。在自然发病的棉田 ,链霉菌S - 5拌种 ,对棉花苗期的防治效果为 6 5 5 % ,明显高于多菌灵的防效 4 0 %。不同使用量 ,防病差别明显。使用量 37 5kg/hm2 穴施 ,对棉花枯、黄萎病的防病效果分别为 81 80 %和 10 0 %。
译  名：
Effects of Streptomyces Strain S-5 on Control of Cotton Root and Seedling Diseases
作  者：
Zhang Kecheng 1,4 , Li Yanxue 2, Jia Enkuan 3, Lin Dexin 1, Zhang Fusuo 4 ( 1 Institute of Plant Protection, Chinese Academy of Agricultural Sciences,Beijing\ 100094; 2 Station of plant protection of Chaoyang,Liaoning 122000; 3 statio
关键词：
Streptomyces spp ; Biocontrol; Antibiotics; Cotton seedling disease;Fusarium oxysporium f sp vasinfectum(Atk );Verticillium dahliae Kleb
摘  要：
The effects of streptomyces strain (Streptomyces spp )S-5 on the control of cotton root and seedling diseases were evaluated in vitro and in the greenhouse and field experiments The results indicated that the antibiotic compound produced by strain S-5 played the main role in suppression of the fusarium and verticillium wilt In greenhouse test Stain S-5 reduced percentage of diseased plants of fusarium and verticillium wilt about 24% and 15% respectively The cotton growth and seedling height were improved significantly On the field trial the biological agent of streptomyces S-5 were introduced by adding to seeds and seedling ditch, its controling effects on cotton seedling diseases were 65 5%, significantly better than those of chemical fungicide(40%) On the verticillium and fusarium wilt were 81 80% and 100% respectively with the antagonistic agent of 37 5 kg/hm 2 Those results provide a experimental basis on improving application of streptomyces strains to control cotton soil-borne diseases and probing the mechanism of S-5 in suppression of soil-borne pathogens.

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