頁籤選單縮合
題 名 | A Study on the Control of Lead Tree [Leucaena Leucocephala (Lamark) de Wit] by Herbicides=化學除草劑對銀合歡之控制效果 |
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作 者 | 黃琛瑜; 徐玲明; 王慶裕; | 書刊名 | 作物、環境與生物資訊 |
卷 期 | 6:3 2009.09[民98.09] |
頁 次 | 頁157-163 |
分類號 | 433.85 |
關鍵詞 | 種子發芽; 幼苗傷害; 除草劑; 控制; Seed germination; Seedling injury; Herbicide; Weed control; |
語 文 | 英文(English) |
中文摘要 | 摘要 銀合歡[lead tree; Leucaena leucocephala (Lamark) de Wit]係外來植物,自17世紀引進之後目前普遍分布於臺灣。本研究旨在利用化學除草劑控制銀合歡,以八種不同作用機制除草劑處理夏威夷(Hawaii)及薩爾瓦多(Salvador)兩型銀合歡,結果顯示兩型銀合歡於種子發芽階段對於glutamine synthetase (GS)抑制型除草劑-固殺草(glufosinate)較為敏感,而兩型銀合歡幼苗生長傷害指數的反應則對光系統I (photosystem I)抑制型除草劑巴拉刈(paraquat)較為敏感。此外,固殺草、丁基拉草(butachlor)及伏寄普(fluazifop)亦能快速而有效地控制幼苗生長。比較兩型銀合歡幼苗對於除草劑之反應,發現夏威夷型僅略較薩爾瓦多型敏感。本試驗結果可提供銀合歡種子發芽期及幼苗生長期以化學方法進行控制時,最適除草劑之選擇參考。 |
英文摘要 | ABSTRACT Lead tree [Leucaena leucocephala (Lamark) de Wit], an exotic plant species, has been widespread in Taiwan since its introduction in the seventeenth century. In this study, dose-response analyses of herbicide susceptibilities of both Hawaii- and Salvardo-type lead trees were carried out. Estimation of control efficacy of eight herbicides with different action mechanisms showed that seed germination of lead tree was more susceptible to glufosinate, a glutamine synthetase inhibitor, and seedling growth was more susceptible to paraquat, a photosystem I inhibitor. Glufosinate, butachlor and fluazifop were also effective in killing seedlings of the examined species. The Hawaii type expressed a slightly higher susceptibility to herbicides than the Salvador type. These experimental results may be taken into consideration in developing chemical control programs for lead tress in the early growth stages. |
本系統中英文摘要資訊取自各篇刊載內容。