查詢結果分析
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頁籤選單縮合
題名 | Sensitivity of Sclerotinia sclerotiorum and Its Two Biocontrol Agents, Ulocladium atrum and Coniothyrium minitans, to Boscalid and Benomy1=菌核病菌(Sclerotinia sclerotiorum)及其生防菌(Ulocladium atrum 和 Coniothyrium minitans)對農藥Boscalid 的感受性 |
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作 者 | 黃鴻章; | 書刊名 | 植物病理學會刊 |
卷期 | 22:1 2013.03[民102.03] |
頁次 | 頁57-66 |
分類號 | 433.85 |
關鍵詞 | 殺菌劑; 菌絲生長; 孢子發芽; 藥劑靈敏度; 病害綜合防治; Fungicide; Mycelial growth; Sensitivity; Resistance; Integrated pest management; |
語文 | 英文(English) |
中文摘要 | Coniothyrium minitans和Ulocladium atrum是兩種有益真菌,用以防治由Sclerotinia sclerotiorum所引起的作物菌核病。本研究旨在評估殺菌藥劑boscalid和benomyl對這三種真菌的菌絲生長與孢子發芽之影響。結果顯示boscalid的所有測試濃度(10 to 4000 μg a.i./mL)對S. sclerotiorum, C. minitans和U. atrum的菌絲生長都有顯著(P<0.05)抑制性,但是benomyl的所有測試濃度(10 to 4000 μg a.i./mL)中,僅對S. sclerotiorum和C. minitans的菌絲生長有顯著(P<0.05)抑制性,而對U. atrum的菌絲生長在藥劑濃度高達500 μg a.i./mL仍無顯著(P>0.05)抑制性。同樣的,在測試這兩種藥劑對這三種真菌的孢子發芽之影響中,benomyl的濃度高達100 μg a.i./mL時,對U. atrum孢子發芽率仍無顯著(P>0.05)影響(孢子發芽率仍高達94.4%),而boscalid的濃度高達100 μg a.i./mL時,對S. sclerotiorum, C. minitans和U. atrum的孢子發芽都有明顯的抑制作用(P<0.05)(發芽率<8.4%)。由於boscalid對這三種真菌之絲生長與孢子發芽都具有明顯的抑制性,因此在建立作物菌核病防治策畧時,應該考慮將boscalid農藥與C. minitans或U. atrum等生防菌分開使用。 |
英文摘要 | Studies were conducted to determine the effect of the fungicides boscalid and benomyl on spore germination and mycelial growth of the pathogen Sclerotinia sclerotiorum and its biocontrol agents, Ulocladium atrum and Coniothyrium minitans. Mycelial growth of all three fungi was sensitive to boscalid, whereas S. sclerotiorum and C. minitans were sensitive to benomyl at all the concentrations (10 to 4000 μg a.i./mL) tested, and U. atrum was sensitive to benomyl at higher concentrations (1000 μg a.i./mL or greater) but tolerant at lower concentrations. A similar trend was observed with respect to conidial germination, with the threshold level for U. atrum sensitivity to benomyl being 100 μg a.i./mL. The ecological implications of prophylactic use of broad-spectrum fungicides such as boscalid in combination with biocontrol agents are discussed. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。