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題名 | 不同殺草劑對叢枝內生菌根菌族群變動之影響=Herbicide, a Stress Factor on the Population Fluctuation of Vesicular-Arbuscular Mycorrhizal Fungi |
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作者 | 林素禎; 林淑媛; 吳繼光; | 書刊名 | 中華農業研究 |
卷期 | 52:2 2003.06[民92.06] |
頁次 | 頁93-98 |
分類號 | 433.85 |
關鍵詞 | 殺草劑; 叢枝內生菌根菌; 感染率; 孢子; Herbicide; VA mycorrhiza; Colonization; Spore; |
語文 | 中文(Chinese) |
中文摘要 | 本文主要探討年年春、巴拉刈與龍無草等三種殺蟲劑對田間雜草紫花藿香薊的菌根菌感染率及根圈產孢量的影響。第一年的試驗中,殺蟲劑年年春施用14天後會明顯降低紫花藿香薊的菌根菌感染率,而第二年的試驗中更確認殺草劑年年春對紫花藿香薊有顯著抑制菌根菌感染率的效果。第一年的試驗中雖然殺草劑年年春對於菌根菌孢子的形成,在統計上沒有顯著的抑制作用,但第二年的調查發現三種殺草劑的施用確實對於孢子數的減少有明顯的效果。本試驗所使用的三種殺草劑不會改變田間菌根菌的種類。 |
英文摘要 | In this study, three different herbicides, i.e., Isopropylamine salt of N-phospho-nomethyl glycine, 1, 1-Dimethyl- 4, 4-bipyridylium dichloride, and Besulfuron- methyl benzoate, were evaluated for their influence on VA mycorrhizal fungi in terms of colonization and spore production of Ageratum houstonianum, dominant weed in the experiment field. In the first year survey, herbicide (isopropylamine salt of N-phosphonomethyl glycine) was significantly unhelpful to the colonization of Ageratum houstonianum after 14 days in use. In the second year survey, this herbicide was confirmed to be one of the factors harmful to the colonization of VA mycorrhizal fungi on Ageratum houstonianum. Although inhibition effect was not Significant in the first year study, the spore population was reduced extensively after the second year treatment of herbicides. The three herbicides tested in the experiment did not place any pressure on the composition change of VA fungal flora. |
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