頁籤選單縮合
題名 | 臺灣杉母樹毬果及種子之變異比較= |
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作者 | 鍾永立; |
期刊 | 林業試驗所研究報告季刊 |
出版日期 | 19950900 |
卷期 | 10:3 1995.09[民84.09] |
頁次 | 頁309-314 |
分類號 | 436.251 |
語文 | chi |
關鍵詞 | 臺灣杉; 種源; 海拔分布; 母樹直徑; Taiwania; Provenances; Elevational distribution; Diameter of seed tree; |
中文摘要 | 於臺灣杉結實豐年(民國68年),分別由秀巒、大雪山、達見、丹大、望鄉及關山等六處,共採集101單株天然母樹之毬果。每一母樹逢機量取20個毬果之長及直徑,並計算單株母樹毬果之種子收率,及檢定其發芽率;然後分就不同種源、母樹海拔分布(1,800-2,580 m)、母樹胸徑(69-385 cm),進行比較分析。結果顯示:六種源間之毬果大小及種子收率與發芽率,皆呈顯著或極顯著差異。而母樹分布之海拔愈高,毬果愈小,種子之收率及發芽率亦愈低。母樹胸徑大小與毬果及種子品質並無顯著相關。 |
英文摘要 | The cones of 101 seed trees of Taiwan (Taiwania cryptomerioides Hay.) were collected from six locations in 1979, a good year for cones and seeds. Twenty cones were randomly picked from each seed tree for measurement of length and diameter, and for the estimation of seed recovery and germination rate. These characteristics were analyzed among different provenances, clevational distribution of the seed tree (ranging between 1800 and 2580 m), and diameter of the seed tree (ranging between 69 and 385 cm). The results show that the size of the cone, seed recovery and seed germination percentages are singificantly different among the provenances. The higher the elevational distribution of the seed tree, te smaller the cone, and the lower the recovery of seeds and germination percentage. The diameter of the seed tree, however, is not related to the size of the cone or the quality of the seeds. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。