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題 名 | Seasonal Patterns of Nitrogen-Fixing Ability (C2H2Reduction) and Hydrogen Uptake by Actinorhizal Nodules of Casuarina Equisetifolia Linn=木麻黃根瘤季節性固氮及氫氣攝取活性變化之研究 |
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作 者 | Athar, Mohammad; Athar, Mohammad; | 書刊名 | Taiwania |
卷 期 | 41:3 1996.09[民85.09] |
頁 次 | 頁208-214 |
分類號 | 373.97 |
關鍵詞 | 木麻黃; 固氮酶; 氫酶; 固氮作用; Casuarina; Nitrogenase; Hydrogenase; N-fixation; |
語 文 | 英文(English) |
DOI | 10.6165/tai.1996.41.208 |
中文摘要 | 木麻黃係巴基斯坦引進的農林樹種之一種。本研究主要是觀測於季節不同時,其固氮作用及氫氣攝取的能力變化狀況。根瘤於六月份時上述兩種活性達到最高,而於十二月份時活性最低。本研究對於熱帶農林或園藝的管理於應用生態學上有多方面的重要性與參考價值。 |
英文摘要 | Casuarina equisetifolia is an actinorhizal tree being introduced in agroforestry systems of Pakistan. A study was conducted to observe the seasonal changes in nodular nitrogenase activity (C₂H₂ reduction) and uptake hydrogenase activity of C. equisetifolia. Nodules showed significant (P≤0.05) seasonal variation in the nitrogenase and hydrogenase activities which were highest during June (13.52 μmoles C₂H₄. g¯¹ fresh nodule wt. hr¯¹ and 2.55 μmoles H₂ consumed g¯¹ fresh nodule wt. hr¯¹, respectively) and lowest during December (0.55 μmoles C₂H₄. g¯¹ fresh nodule wt. hr¯¹ and 0.23 μmoles H₂ consumed g¯¹ fresh nodule wt. hr¯¹, respectively). This study has many important and applied ecological implications in the management of horticulture and agroforestry systems of the tropics. |
本系統中英文摘要資訊取自各篇刊載內容。