頁籤選單縮合
題 名 | 重建臺灣肖楠營養系種子園以促進開花結實之初期結果=Preliminary Results of Flowering Promotion and Seeding in Re-established Clonal Seed Orchards of Calocedrus formosana |
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作 者 | 鍾振德; 郭幸榮; 楊政川; | 書刊名 | 臺灣林業科學 |
卷 期 | 16:3 2001.09[民90.09] |
頁 次 | 頁181-195 |
分類號 | 436.259 |
關鍵詞 | 臺灣肖楠; 嫁接; 種子園; 開花; 高生長; Calocedrus formosana; Grafting; Flowering; Height growth; |
語 文 | 中文(Chinese) |
中文摘要 | 位出雲山(海拔1,100m)大雪山(1,500m)之臺灣肖楠30個嫁接營養系種子園自1974 年立後一直未能開花堂實。1998年2月取此種子園的30個營養系(編號1-30),以及4個位於 蓮華池(744m)成熟林木(編號32-35)之接穗,其中編號32-33為已開花,34-35閱未曾開花,進 類劈接法嫁接,嫁接成開花株數之比率,分別為69.0與12.6%,蓮華池則分別為12.2與4.5 %。在六龜種子園,2個年度開花之營養系分別為35及26個,各營養系之開花株數比率範 圍自9.0-100%不等,呈極顯著差異。蓮華池2個年度分別只有25與11個營養系開花,各營 養系之開花株數比率亦呈極顯著差異:已開花(編號32-33)與未開(34-35)接穗之嫁接木,在六 龜都可以開花;蓮華池編號32營養系只在第1年開花,34號營養系則連續兩年都可開花。 土壤養皆分析顯示出雲山與大雪山種子園之土壤全氮量高於六龜與蓮華池種子園近2倍,但 有效性含磷量六龜與風華池種子園則高於出雲山與大雪山種子園,臺灣肖楠開花可能受生育 地條件與嫁接二因子之影響。雖然2處重建種子園第1年開花株數比率達比第2年高,但第 1年未 結實,而第2年2處種子園都可採集少量毬果 且具飽滿種子,發芽率25-100%不等。嫁接木 2年生高生長在2處種子園間差異不顯著,但各營養系間差異顯著。高生長與第2年的雌花 數量呈顯著正相關,但與雄花數及第1年雄、雌花數量則否。 |
英文摘要 | Colnal orchards of calocedrus formosana located at Tsuyunshan (1,100 m in elevation) and Tashueshan (1,500m in elevation) in the central part of Taiwan have not flowered, since they were established in 1974. Scions of 30 clones (nos. 1-30) collected form these 2 orchards were cleft-grafted noto seedlings in early February 1998. Scions collected from 4 trees (nos. 32-35) grown at Lienhwachih in central Taiwan (744 m in elevation) were also grafted noto seedlings, and used as a control. Clones no. 35 and 33 flower every year, but clones no. 34 and 35 have not flowered. High survival rates of up to 95.6% of grafts were obtained. These grafts were then planted at Liukuei in southern Taiwan (251 m in elevation) and Lienhwachih. In 1999 and 2000, the flowering rates (the per cent of flowering grafts out of the total grafts planted) at Liukuei were 69.0 and 12.6%, while those at Lienhwacih were 12.2% and 4.5%. At Liukuei, 35 clones and 26 clones flowered in each of the 2 years, but the lowering rates among different clones varied greatly form 9.0 to 100%. However, only 25 and 11 clones at Lienhwachih fowered in these 2 years. The gafts from either ortets with flowering potential (clones no. 32 and 33) or those without flowering potential (clones no.34 and 35) flowered at Liukuei. At Lienhwachih, however, the flowering grafts were clone no. 32 in the 1st year and clone no. 34 in both years. At analysis of soil nutrients revealed that total nitrogen in the old orchards (Tsuyunshan and Tashueshan) was nearly 2 times greater than that in the new ones (Lienhwachih and Liukuei), whereas soil available phosphorus at new noes was greater than that of the old ones. These phenomena indicate that flowering induction was related to both site and grafting effects. Although the flowering rates in 1999 at both sites were much greater than these of 2000, cones with filled seeds were found in 2000 only. Germination rates of seeds per grafts varied from 25 to 100%. The average height growth of 2-yr-old grafts did not significantly differ between the 2 sites, but did significantly differ among clones. These was a positive correlation of female flower number in the 2nd year, but no correlation to male flower number in either the 1st and 2nd year or the female flower number in the 1st year. |
本系統中英文摘要資訊取自各篇刊載內容。