頁籤選單縮合
題 名 | 山藥根腐線蟲不同接種方法之評估=Evaluation of Different Method for Inoculation for Pratylenchus Coffeae on Yam |
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作 者 | 倪蕙芳; 許淑麗; 楊宏仁; | 書刊名 | 臺灣農業研究 |
卷 期 | 56:2 2007.06[民96.06] |
頁 次 | 頁99-106 |
分類號 | 434.3 |
關鍵詞 | 接種方法; 根腐線蟲; 山藥; Inoculation method; Root-lesion nematode; Partylenchus coffeae; Yams; |
語 文 | 中文(Chinese) |
中文摘要 | 根腐線蟲為台灣山藥主要線蟲病害之一,造成山藥嚴重損失,2001年發現以來一直為山藥栽培之重要限制因子。本研究所調查之山藥含各地方栽培品種,其中來自中埔之地方種原生-2、山藥台農五號(中埔紅龍)、甲仙、玉井、杉林、梅山地方品種、陽明山白皮白肉種、大汕、紫玉血薯、名間長紅等田間所栽培之薯塊即已發現遭根腐線蟲感染。為調查不同山藥對根腐線蟲之抗感病性,本研究同時比較山藥根腐線蟲三種人工接種方式,結果顯示直接利用山藥之病薯皮切碎或進一步打成汁液後進行接種試驗時,較以分離之線蟲懸浮液進行接種者可以在短時間內增加根腐線蟲族群,從而縮短品種或品系間抗感病性試驗之時間。同時以病薯皮接種較將病薯皮打成汁液或分離線蟲懸浮液方便許多,可應用在未來大規模篩選山藥抗根腐線蟲之試驗及其它內寄生潛移性線蟲研究之參考。 |
英文摘要 | The root-lesion nematode Pratylenchus coffeae first appeared on yams in Taiwan in 2001 and the disease has become an important limiting factor for yams production since that on. According to our field survey, the nematode attacked many yam cultivars, including Zhoung-Pu-Yuan-Sheng-line 2, Tainung No. 5 (Hong Long), Yang Ming Shan bai-pi-bai-rou, Da Shan, Zih-Yu-Xie-Shu, and Min-Jian-Chang-Hong, as well as several local varieties of Jia Sian, Yu Jing, Shan Lin and Mei Shan. In order to select a suitable method for root nematode inoculation study, three different methods were tested and evaluated. The inoculation sources used in the three methods were nematode suspension, nematode infested yam peels, nematode infested yam peel suspension. Results showed that both methods by inoculating seedlings with nematode-infected diseased-tuber peels or blended diseased peel suspension were better than the method using nematode suspension as inoculum. The population densities of P. coffeae in the tubers of yam Tainung No.5 and Da Shan in the former two treatments were much higher than the latter treatment 3 months after inoculation. Furthermore, inoculation with unblended diseased tuber peels is more convenient and less time consuming than the other two methods. Therefore, the diseased peel inoculation method is suitable for use in screen of yam cultivars resistant to root nematodes and other inoculation studies. |
本系統中英文摘要資訊取自各篇刊載內容。