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題 名 | 樹蕨類孢子成熟度與活力之關係=The Relation between Spore Maturity and Viability of Tree Ferns |
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作 者 | 黃曜謀; 李沛軒; 傅春旭; 張藝翰; | 書刊名 | 國立臺灣博物館學刊 |
卷 期 | 67:2 2014.06[民103.06] |
頁 次 | 頁45-58 |
分類號 | 378 |
關鍵詞 | 筆筒樹; 鬼桫欏; 臺灣桫欏; 發芽率; 成熟度; 孢子; Cyathea lepifera; Cyathea podophylla; Cyathea spinulosa; Germination percentage; Maturity; Spore; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究調查新北市和美山地區三種樹蕨 (筆筒樹、台灣桫欏、鬼桫 欏)的孕性葉季節性及其孢子成熟度與發芽率之關係。結果發現此三種樹蕨均在 3月抽出孕性葉, 7月孢子囊成熟開裂釋出孢子。當孕性葉被採收進行陰乾,未成熟孢子囊通常緊閉,即使孢子囊開裂孢子亦藏其內聚集成塊狀,而成熟孢子囊易開裂且釋出獨立分離的孢子。未成熟孢子囊呈草綠—深橄欖綠色,孢子小、不具發芽能力或發芽率低;孕性葉抽芽 14-16週後 (7月上旬 -中旬 ),約為孢子囊開裂初期,孢子囊顏色轉為鞍褐色,孢子體積達到最大且具有最高的發芽率。 |
英文摘要 | This study explored the seasonality of fertile fronds of 3 tree ferns (Cyathea lepifera, C. spinulosa, and C. podophylla) in Homeishan, New Taipei City and the relation between their spore maturity and germination percentage. Results show that fertile fronds emerged in March and their sporangia matured and released spores in July. When fertile fronds were air dried, immature sporangia were usually closed and the spores inside clustered together even if the sporangia opened, whereas mature sporangia usually opened and released spores separated from one another. The immature sporangia were lawn green – dark olive green; their spores were small, with zero or low germination percentage. When the fertile fronds were 14-16 weeks old (early – middle July), ca. early stage of sporangia cracking. Their sporangia turned saddle brown, spores reached the maximum size of their development, and had the highest germination percentage. |
本系統中英文摘要資訊取自各篇刊載內容。