ZENG Long-gang,LU Hai-ju,WANG Dong,et al.Preliminary Study on Pepper Black Spot from Mengzi Yunnan Province[J].Northern Horticulture,2015,39(03):109-113.[doi:10.11937/bfyy.201503032]
云南省蒙自市辣椒黑斑病初步研究
- Title:
- Preliminary Study on Pepper Black Spot from Mengzi Yunnan Province
- Keywords:
- pepper black spot; Alternaria; identification; biological characteristics; screen fungicide
- 文献标志码:
- A
- 摘要:
- 以蒙自市草坝镇辣椒黑斑病病果为试材,采用平板划线法分离,科赫法则验证,形态特征比对,菌丝生长速率法,研究了辣椒黑斑病菌的分类地位、生物学特性及药敏性。结果表明:云南省蒙自市辣椒黑斑病由链格孢属Alternaria sp.侵染引起;病菌菌丝生长最佳条件为玉米琼脂(MA)培养基、可溶性淀粉为碳源、甘氨酸为氮源、pH 8、温度25℃、全光照;该病菌对58%甲霜灵?锰锌WP和50%扑海因WP药敏性最高。该结论可为其防治提供基础数据。
- Abstract:
- Taking pepper fruit of black spot as material,pathogen was isolated by streak plate method,it was identified by Koch’s postulates and morphology,and tested the biological characteristics and fungicide sensitivity by mycelium growth rate method.The results showed that pathogen of pepper black spot from Mengzi Yunnan province was caused by Alternaria sp..Optimum conditions for mycelial growth were maize agar (MA) medium,soluble starch as carbon source,glycine as nitrogen source,25℃,pH 8,full of light.58% metalaxyl?mancozeb and 50% iprodione wettable powder were the most sensitivity than other fungicides for the pathogen.This conclusion provided theoretical parameter for the control of pepper black spot.
参考文献/References:
[1]张西,毛亦卉,向拉蛟.国内外辣椒产业研究开发的现状分析[J].辣椒杂志,2008(1):1-5.
备注/Memo
第一作者简介:曾垄钢(1963-),男,云南屏边人,本科,高级农艺师,现主要从事植物病害防治推广应用等研究工作。E-mail:zlg63517@foxmail.com.责任作者:鲁海菊(1978-),女,博士,副教授,研究方向为植物真菌分类和植物真菌病害。E-mail:luhaiju2011@126.com.基金项目:科技部基础工作专项资助项目(2006FY120100);红河学院大学生创新资助项目(DCXL1306);云南省高校“农作物优质高效栽培与安全控制重点实验室”建设经费资助项目。