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題 名 | 植物萃取物及生物製劑對胡瓜白粉病防治效應研究=Effects of Plant Extracts and Biological Agents on Controlling the Powdery Mildew of Cucumber |
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作 者 | 吳信郁; | 書刊名 | 桃園區農業改良場研究彙報 |
卷 期 | 71 2012.06[民101.06] |
頁 次 | 頁57-68 |
分類號 | 435.263 |
關鍵詞 | 植物萃取物; 生物製劑; 胡瓜白粉病; 防治; Plant extracts; Biological agents; Cucumber powdery mildew; Control; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究旨在評估植物萃取物及生物製劑對胡瓜白粉病防治效果。以去離子水及50%酒精為溶劑萃取製備小葉桑、蘄艾、大飛揚草、柳樹、蒲公英等植物萃取物,發現以蘄艾與小葉桑萃取物之100倍稀釋液處理,對胡瓜白粉病初期病勢發展具有抑制效果。土肉桂純露100倍稀釋液與對照組在胡瓜白粉病防治上達5%顯著差異,顯示土肉桂純露100倍稀釋液處理對胡瓜白粉病也具有防治效果。另以生物製劑放線菌Streptomyces saraceticus 50倍、枯草桿菌Bacillus subtilis 50倍及木黴菌Trichoderma harzianum 500倍稀釋液處理,結果胡瓜白粉病罹病度分別高達63.1、62.1及63%,顯示該等生物製劑對胡瓜白粉病不具防治效果。 |
英文摘要 | The purpose of this study was to evaluate the effects plant extracts and biological agents on controlling the powdery mildew of Cucumber and the possibility of applying them to organic farming application. The extracts of Morus australis, Blumea glomerata, Euphorbia hirta , Salix babylonica and Taraxacum mongolicum were extracted with deionized water and 50% ethanol. A mixture of aqueous and ethanol extracts was screened to control powdery mildew of Cucumber in pipehouse. The extracts of Blumea glomerata and Morus australis at a 100-fold dilution also showed effective suppression of disease severity of powdery mildew at the initial stage. The 100-fold hydrolat of Cinnamomum cassia also could show suppression of disease severity of powdery mildew. The 50-fold extract of Streptomyces saraceticus , Bacillus subtilis and the 500-fold extract of Trichoderma harzianum were tested for controlling the powdery mildew of Cucumber in pipehouse . All the disease severity of biological agents treatments were up 62% and showed no control efficiencies. |
本系統中英文摘要資訊取自各篇刊載內容。