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頁籤選單縮合
題 名 | Fusarium Oxysporum和Pythium Splendens引起地黃根腐病和猝倒病=Root Rot and Damping-off of Rehmannia Glutinosa and Their Causal Organisms |
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作 者 | 陳立祥; 黃瑋銘; 劉啟東; 陳瑞祥; 蔡竹固; | 書刊名 | 植物保護學會會刊 |
卷 期 | 49:3 2007.09[民96.09] |
頁 次 | 頁259-265 |
分類號 | 433.4 |
關鍵詞 | 地黃; 根腐病; 猝倒病; 尖鐮孢菌; 華麗腐霉菌; Rehmannia glutinosa; Root rot; Damping-off; Fusarium oxysporum; Pythium splendens; |
語 文 | 中文(Chinese) |
中文摘要 | 在台灣,除了廖等(2007)報導在栽培園區,經常發現由煙草嵌紋病毒(Tobacco mosaic virus)感染地黃植株,造成葉部濃綠不均、嵌紋及皺縮等病徵,直接影響植株生長與產量;且病株的地下塊根生育不良,甚至畸形,減低商品價值(7)。少有文獻記載關於地黃的病害(3),而大陸方面則有下列各種病害的紀錄:斑枯病、輪斑病、根腐病(2)、病毒病(13, 15)及胞囊線蟲病(2);韓國報導根腐病(root rot)(9);捷克報導植物菌質引起的黃萎病(aster yellow)(10)。 2006年4月,於台南區農業改良場義竹工作站地黃試種苗圃發現萎凋及猝倒型病徵,因此,本文乃報告台灣地黃根腐病和猝倒病之病原鑑定,並以人工接種試驗證實其病原性,以利日後採行相關防治措施之參考。 |
英文摘要 | Root rot and damping-off of Rehmannia glutinosa were found in 2006. Fusarium oxysporum Schlecht. and Pythium splendens Braun were isolated and found to be associated with diseased rhizomes and roots in wilted plants. F. oxysporum was identified as the major pathogen of the root rot, while P. splendens was found to be the cause of damping-off of R. glutinosa though pathogenicity tests. Optimum temperature for mycelial growth of F. oxysporum and P. splendens was 30 oC and the optimum temperature for conidial germination of F. oxysporum was 25 oC. This is the first report of root rot of R. glutinosa caused by F. oxysporum in Taiwan. The damping-off of R. glutinosa caused by P. splendens has not been reported previously. |
本系統中英文摘要資訊取自各篇刊載內容。