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赤水金钗石斛黑斑病菌生物学特性及防治研究
引用本文:桑维钧,李小霞,练启仙,李兴玉,杨槐,蔡兰英. 赤水金钗石斛黑斑病菌生物学特性及防治研究[J]. 云南大学学报(自然科学版), 2007, 29(1): 90-93
作者姓名:桑维钧  李小霞  练启仙  李兴玉  杨槐  蔡兰英
作者单位:1. 贵州大学,农学院,贵州,贵阳,550025;贵州省山地农作物病虫害综合防治重点实验室,贵州,贵阳,550025
2. 贵州大学,农学院,贵州,贵阳,550025
3. 黔西南州师范学院,贵州,兴义,562400
4. 赤水市石斛生产办公室,贵州,赤水,564700
5. 赤水市农业局区划站,贵州,赤水,564700
基金项目:贵州省中药材现代化产业专项重点资助项目
摘    要: 对金钗石斛黑斑病菌的生物学特性、培养性状及形态等研究表明,病原菌为细极链格孢菌(Al-ternaria tenuissima).适宜菌丝生长的温度为5~35℃,最适温度为25℃,分生孢子萌发的温度范围为5~35℃,最适温度为25℃.光照对菌丝生长和孢子萌发无明显的影响.药效试验表明:10%苯醚甲环唑67μg/mL,64%恶霜灵1 607μg/mL对菌丝的抑菌率均为100%,90%乙磷铝的抑菌效果不明显.

关 键 词:金钗石斛  黑斑病  生物学特性
文章编号:0258-7971(2007)01-0090-04
修稿时间:2006-03-02

Studies on biological characteristic of black rot in Dendrobium nobile of Chishui
SANG Wei-jun,LI Xiao-xia,LIAN Qi-xian,LI Xing-yu,YANG Huai,CAI Lan-ying. Studies on biological characteristic of black rot in Dendrobium nobile of Chishui[J]. Journal of Yunnan University(Natural Sciences), 2007, 29(1): 90-93
Authors:SANG Wei-jun  LI Xiao-xia  LIAN Qi-xian  LI Xing-yu  YANG Huai  CAI Lan-ying
Affiliation:1. Agriculture College, Guizhou University, Guiyang 550025, China;2. Guizhou Key Laboratory of Mountain Agriculture Plant Diseases and Insect Pests, Guiyang 550025, China;3. Southwest Guizhou Normal College, Xingyi 562400, China;4. Chishui Dendrobium Nobile Production Office, Chishui 564700, China;5. Chishui Bureau of Agriculture, Chishui 564700, China
Abstract:Biological characteristics of Alternaria tenuissima in Dendrobium nobile were studied.The results showed that the suitable temperature range for mycelid growth is from 5-35℃,and the optimium temperature is 25℃.The temperature is 5-35℃ to germinate of spores,and 25℃ were optimum.Different illumination did not obviously influence to mycelial growth and spores germination.The study also indicated that the fungicides(10% difenoconazole at 67μg/mL,and 64% oxadixyl at 1607μg/mL) creat strong fungistatic action against Alternaria tenuissima in vitro,and the percentage for fungistutic action of inhibiton to the mycelial growth recorded 100%.The fungicides(90% fosetyl-aluminium) is not obvious for fungistatic action.
Keywords:Dendrobium nobile Lindl  black spot  biological of characterization
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