吉祥草叶斑病菌的生物学特性及室内防治药剂筛选

为吉祥草叶斑病的综合防治提供科学依据,测定了吉祥草叶斑病菌细极链格孢（Alternaria tenuissima）的生物学特性及筛选适合的防治药剂。结果表明,PDA为最适培养基,病原菌生长适温为28℃,致死温度为45℃;在p H值为4~10的范围内均能生长,最适p H值为5;碳源和氮源以葡萄糖和硝酸铵较适宜;光照条件以12/12 h（光/暗）为佳。在供试的5种药剂中,10%苯醚甲环唑对病原菌抑菌效果最好,在推荐使用浓度1.00 mg/L下,相对抑菌率达到100%,而45%的石硫合剂抑菌效果最差,在推荐使用浓度6.67 mg/L下,其抑菌率仅为49.7%。...

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Published in西南农业学报 Vol. 28; no. 1; pp. 212 - 216
Main Author 傅本重 赵文丽 王立华 李国元 邹礼平 张志林
Format Journal Article
LanguageChinese
Published 特色果蔬质量安全控制湖北省重点实验室/生物质资源转化利用湖北省协同创新中心,湖北工程学院生命科学技术学院,湖北孝感432000 2015
西南林业大学林学院,云南昆明650224%西南林业大学林学院,云南昆明,650224%特色果蔬质量安全控制湖北省重点实验室/生物质资源转化利用湖北省协同创新中心,湖北工程学院生命科学技术学院,湖北孝感432000
Subjects
叶斑病
吉祥草
生物学特性
药剂筛选
生物学特性
药剂筛选
吉祥草
Reineckea carnea
Fungicide screening
Biological characteristics
叶斑病
Leaf spot
Online AccessGet full text
ISSN1001-4829
DOI10.16213/j.cnki.scjas.2015.01.041

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Summary:为吉祥草叶斑病的综合防治提供科学依据,测定了吉祥草叶斑病菌细极链格孢（Alternaria tenuissima）的生物学特性及筛选适合的防治药剂。结果表明,PDA为最适培养基,病原菌生长适温为28℃,致死温度为45℃;在p H值为4~10的范围内均能生长,最适p H值为5;碳源和氮源以葡萄糖和硝酸铵较适宜;光照条件以12/12 h（光/暗）为佳。在供试的5种药剂中,10%苯醚甲环唑对病原菌抑菌效果最好,在推荐使用浓度1.00 mg/L下,相对抑菌率达到100%,而45%的石硫合剂抑菌效果最差,在推荐使用浓度6.67 mg/L下,其抑菌率仅为49.7%。
Bibliography:Reineckea carnea; Leaf spot; Biological characteristics; Fungicide screening
FU Ben-zhong, ZHAO Wen-li, WANG Li-hna , LI Guo-yuan , ZOU Li-ping , ZHANG Zhi-lin （ 1. Key Laboratory for Quality Control of Characteristic Fruits and Vegetables of Hubei Province/Hubei Collaborative Innovation Center for Biomass Resource Transformation and Utilization, College of Life Science and Technology, Hubei Engineering University, Hubei Xiaogan 432000, China; 2. Forestry College of Southwest Forestry University, Yunnan Kunming 650224 ,China）
51-1213/S
In order to provide scientific basis for the disease control,the biological characteristics and suitable pesticides for Reineckea carnea leaf spot pathogen Alternaria tenuissima were investigated. The results indicated that the pathogen mycelium were grown well in PDA under28 ℃,and the lethal temperature was 45 ℃. Although the mycelium could grow between p H 4. 0 to 10. 0,p H = 5. 0 was appropriate. Dextrose and NH4NO3 were the suitable carbon and nitrogen resource respectively. T
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2015.01.041