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題 名 | 臺灣南部瓜類蔓枯病之發生 |
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作 者 | 蔡竹固; 童伯開; | 書刊名 | 嘉義農專學報 |
卷 期 | 40 1995.02[民84.02] |
頁 次 | 頁149-159 |
分類號 | 435.26 |
關鍵詞 | 瓜類蔓枯病; 病勢進展; Gummy stem blight of cucurbits; Didymella bryoniae; Disease development; Mycosphaerella melonis; |
語 文 | 中文(Chinese) |
中文摘要 | 田間調查發現塑膠布隧道內栽培的洋香瓜,於種植一個月後開始發生蔓 枯病,病徵僅表現在主蔓的枯蔓上,罹病率在7.59-26.37之間,未見有葉斑或支 蔓的蔓枯病徵;降雨量與其病害發生的關係並不明顯。但就其栽種季節而言,設 施內春及秋作洋香瓜的主蔓蔓枯罹病率較夏作為高。露地栽培的香瓜,同時會出 現主蔓及支蔓的蔓枯與葉斑,但以支蔓上的葉斑及蔓枯較為普遍;種植一個月 後,瓜蔓佈滿畦面後開始發病,葉片罹病度、主蔓或支蔓罹病率皆可高達70;且 降雨量與病害發生有密切的關係。露地栽培的越瓜發病與露地香瓜相似,葉片罹 病度及瓜蔓罹病率皆可高達80及90。在瓜類生育期間,病株的葉斑或蔓枯病徵士 會同時產生該菌的柄子殼及子囊果,惟柄子殼存在的比率較子囊果為高。 |
英文摘要 | A survey on incidence of gummy stem blight in cucurbit field was carriedout in Chiayi from Sep., 1991 to Aug., 1992. The influence of temperature, relative humidity, and precipitation on the incidence of gummy stem blightcaused by Didymella bryoniae on leaves and stems of muskmelon, melon,pickling melon was studied. Disease incidence was rare at early growing stageof these crops within 1 month after sowing or transplanting. The disease startsto develope when plants were grown over rows, and it was most serious duringthe weather kept on raining. The effect of water-splash on disease incidence offield cultured plants was recognized. Leaves and stems of these crops in fieldcould be attacked by D. bryoniae but their symptoms were influenced by theculture type. Leave and stem blight could be found in field culture type, butonly stem blight was found in protected culture type. According to the diseasesurvey of muskmelon in protected culture, incidence of stem blight was higherin autum and spring crops than in summer one. Both pyenidia and ascomatawere produced on diseased cucurbit leaves and stems in field during the growing season, and the former was more abundent than the latter. |
本系統中英文摘要資訊取自各篇刊載內容。