| 苍术黑斑病菌(Alternaria tenuissima)生物学特性研究 |
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| 引用本文： | 王义勋,贾凤姣,李阳,黄俊斌. 苍术黑斑病菌(Alternaria tenuissima)生物学特性研究[J]. 植物保护, 2007, 33(3): 107-110 |
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| 作者姓名： | 王义勋 贾凤姣 李阳 黄俊斌 |
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| 作者单位： | 华中农业大学植物科技学院植保系湖北省作物病害监测和安全控制重点实验室 武汉430070 |
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| 摘 要： | 从苍术黑斑病叶片上分离得到黑斑病病原菌[Alternaria tenuissima (Kunze) Wiltshire],对其生物学特性进行了研究。研究结果表明,病菌菌丝在15～35℃都能生长,最适温度为25℃;pH在4～11都能生长,最适pH为6.0～7.0。在Czapek培养基上,病原菌以葡萄糖和甘露醇为碳源生长最好,以硝酸钾为氮源生长最佳。30%苯醚甲.丙环乳油和10%苯醚甲环唑水分散粒剂对菌丝生长有很好的抑制效果,而75%代森锰锌可湿性粉剂和75%百菌清可湿性粉剂对菌丝生长的抑制效果较差。
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| 关 键 词： | 苍术 细极链格孢 生物学特性 |
| 修稿时间： | 2006-11-06 |
Biological characteristics of the pathogen causing dark leaf spot on Atractylodes lancea |
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| Wang Yixun;Jia Fengjiao;Li Yang;Huang Junbin. Biological characteristics of the pathogen causing dark leaf spot on Atractylodes lancea[J]. Plant Protection, 2007, 33(3): 107-110 |
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| Authors: | Wang Yixun Jia Fengjiao Li Yang Huang Junbin |
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| Affiliation: | College of Plant Science and Technology, Huazhong Agricultural University, Key Laboratory of Crop Disease Monitoring & Safety Control in Hubei Province, Wuhan 430070, China |
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| Abstract: | The pathogen causing dark leaf spot on Atractylodes lancea was isolated from the diseased leaves. The temperature for mycelial growth of A. tenuissima ranged from 15 to 35 ℃, with the optimum temperature at 25 ℃. The pH value ranged from 4.0 to 11.0, with the optimum pH from 6.0 to 7.0. On defined Czapek media, glucose and mannitol were the optimum carbon sources, while KNO3 was the optimum nitrogen source. 30% Propiconazole and difenoconazole EC, and 10% difenoconazole WG showed a strong inhibition effect on mycelial growth, while 75% mancozeb sulfur WP and 75% chorothalonil WP showed weak inhibition. |
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| Keywords: | Atractylodes lancea Alternaria tenuissima(Kunze) Wiltshire biological characteristics |
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