| 香石竹立枯病菌的生物学特性与药剂筛选* |
| |
| 引用本文： | 杨子祥,范静华,孔宝华,陈海如,杨泮川.香石竹立枯病菌的生物学特性与药剂筛选*[J].云南农业大学学报,2009,24(6):814-818. |
| |
| 作者姓名： | 杨子祥 范静华 孔宝华 陈海如 杨泮川 |
| |
| 作者单位： | 1云南农业大学 农业生物多样性与病虫害控制教育部重点实验室，云南 昆明 650201；;2云南英茂花卉产业有限公司，云南 昆明 650000 |
| |
| 摘 要： | 香石竹立枯病是在香石竹上发生普遍，危害严重的主要病害。对病原菌立枯丝核菌（Rhizoctonia solani Kühn）的生物学特性及5种杀菌剂对其的抑制作用进行了研究，结果表明:该菌在所供试的培养基上均能生长，能不同程度地利用多种碳、氮源。其中，可溶性淀粉和尿素分别为最佳碳源和氮源。病原菌在5～45℃，pH 2.5～9.0条件下均能生长，适宜生长温度范围是20～30℃，最适生长温度为30℃，最适生长pH为5.5；12h光照12h黑暗有利于该菌营养体生长；菌丝致死温度为50℃，10min。生物学特性分析结果表明：该菌是一类对营养需求不高，具有较强的适应性的病原菌。室内药效测定结果表明：灭菌星和广枯灵对该菌菌丝生长的抑制效果较好，其它杀菌剂对该菌的菌丝生长也具有抑制作用。
|
| 关 键 词： | 香石竹 立枯丝核菌 生物学特性 药剂筛选 |
| 收稿时间： | 2009-3-2 |
| 修稿时间： | 2009-4-27 |
Biological Characteristics and Screen of Chemical Fungicide of the Pathogen Causing Basal Stem Blight on Dianthus caryophyllus |
| |
| YANG Zi-xiang,FAN Jing-hua,KONG Bao-hua,CHEN Hai-ru,YANG Pan-chuan.Biological Characteristics and Screen of Chemical Fungicide of the Pathogen Causing Basal Stem Blight on Dianthus caryophyllus[J].Journal of Yunnan Agricultural University,2009,24(6):814-818. |
| |
| Authors: | YANG Zi-xiang FAN Jing-hua KONG Bao-hua CHEN Hai-ru YANG Pan-chuan |
| |
| Institution: | 1Key Laboratory for Agricultural Biodiversity and Pest Management ofChina Education Ministry，Yunnan Agricultural University，Kunming 650201，China；2Yunnan Yingmao Flower Industry Limited Company，Kunming 650000，China |
| |
| Abstract: | Basal stem blight is an important disease on carnation.Biological characteristics of Rhizoctonia solani Kühn causing carnation basal stem blight were studied and effective fungicides for disease control were screened.The results showed that the pathogen of Rsolani could grow on all kinds test media.The pathogen could use all kinds of carbon sources and nitrogen sources.The soluble starch was both the optimal carbon and nitrogen source.The fungus could grow at 5～45℃ with the optimum at 30℃and it could grow at pH 2.5～9.0 with the optimum at pH 5.5The mycelium grew well at light and dark in return with light for 12 h per day.The lethal temperature of the mycelium was 50℃ for 10 minutes.The biological characteristics of the pathogen showed that Rsolani causing carnation basal stem blight was strong adaptive in environment.The fungicides for control of Rsolani in lab were screened and the results showed that Miejunxing and Guangkuling were the most effective inhibitory ability for hypha growth.The other fungicides also showed some inhibitory ability. |
| |
| Keywords: | Dianthus caryophyllus L Rhizoctonia solani Kühn biological characteristics fungicides |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《云南农业大学学报》浏览原始摘要信息 |
| 点击此处可从《云南农业大学学报》下载免费的PDF全文 |
