頁籤選單縮合
題名 | 牛樟與樟樹之種間嫁接及其光合成特性=Interspecific Grafts of Cinnamomum Micranthum and Cinnamomum Camphora and its Photosynthetic Characteristics |
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作者 | 蘇碧華; 李明仁; Su, Pi-hwa; Lee, Ming-jen; |
期刊 | 中華林學季刊 |
出版日期 | 20030300 |
卷期 | 36:1=130 2003.03[民92.03] |
頁次 | 頁51-60 |
分類號 | 436.259 |
語文 | chi |
關鍵詞 | 牛樟; 樟樹; 嫁接; 光補償點; 光飽和點; 不親和; 全氮量; 全糖量; 葉綠素含量; Cinnamomum micranthum; Cinnamomum camphora; Grafting; Light compensation point; Light saturation point; Incompatibility; Total nitrogen; Total sugars; Chlorophyll content; |
中文摘要 | 本研究利用切接嫁接法,成功地完成牛樟(Cinnamomum micranthum Hay.)與樟樹(Cinnamomum camphora L.)嫁接。接穗係採自農委會林務局嘉義林區管理處奮起湖牛樟採穗園之15年生無病蟲害之母樹,而砧木則為語農委會林業試驗所中埔分所提供之4年生樟樹實生苗。本嫁接試驗自90年8月起至91年7月止。研究結果顯示,91年2月之嫁接成活率為7%,3月之嫁接存活率為26%,4月之嫁接成活率為13%,而其他月者均無成活者。嫁接成活2個月後,20%之嫁接苗木呈現癒合組織肥大生長之不親和現象。6個月後,10%之嫁接苗木呈現莖枯死,健康差、及早熟死亡之不親和現象,其餘之嫁接苦木呈現良好之生長。牛樟接穗全氮量與全糖量試驗分析結果顯示,在2,3,4,11,12月採集之接穗,具有較高的全氮量與全糖量,而嫁接苗新枝條之全氮量與全糖量化化情形,亦有相同之趨勢。生理特性觀察發現,嫁接7個月後,嫁接苗之光飽和點為600μ mol photon m□s□,而其最大淨光合速率為9μ mol CO□ m□s□,判於牛樟實生苗之最大淨光合速率5μ mol CO□m□s□、及樟樹實生苗之最大淨光合速率13μmol CO□m□s□之間。嫁接7個月後,嫁接苗之光補償點為31 μmol photon m□s□。低於樟樹實生苗之光補償點42μ mol photon m□s□,與牛樟實生苗之光補償點 45 μ mol photon m□s□。葉部之葉綠素含量,牛樟以91年12月之3.44 mg/g為最大。樟樹以91年9月之3.11 mg/g為最大。嫁接苗以92年4月之4.19mg/g為最大。 |
英文摘要 | Cut grafting technique was developed successfully by using Stout camphor tree (Cinnamomum micranthum Hay.) as scion and camphor tree (Cinnamomum camphora (Linn.) Sieber) as rootstock. Scions were collected for grafting experiment from superior tree of the 15-year-old Stout Camphor tree clonal orchard located at Feng-Chi-Hu Station, Chiayi Forest District, Taiwan Forestry Bureau, COA. Four-year-old camphor tree seedlings from Bei-Chu-Tou Station, Chung-Pu Experiment Station, Taiwan Forest Research Institute, COA were used as rootstocks. This study was conducted from August 2001 to July 2002. The survival rates of grafts were about 7% in February, 26% in March, and 13% in April. There were no survival grafts in other months. Two months after grafting there were 20% graft exhibiting graft incompatibility with callus overgrowth. Six months after grafting, 10% of the grafts showing graft incompatibility symptoms with stem dieback, ill health, and premature death. Seventy % of the grafts had good growth. Scions collected in February, March, April, November, and December had higher total nitrogen and total sugar contents from total nitrogen and sugar analysis, and the new grown branches of grafts had the same tendency. The physiological characteristics of the graft were subsequently observed and analyzed. Seven months after grafting, grafting seedlings of stout camphor tree and Camphor tree had a light saturation point of 600 μmol photon m□s□ from physiological studies, and a net photosynthetic rate of 9μmol CO□m□s□, between that of Stout camphor treeμmol CO□m□s□and that of Camphor tree 13μmol CO□m□s□, respectively. This phenomenon showed that there was graft incompatibility between Stout camphor tree and Camphor tree. The grafting seedlings had a light compensation point of 31μmol photon m□s□, lower that that of Camphor tree seedlings 42μmol photon m□s□, and that of Stout camphor tree 45μmol photon m□s□. This also showed the graft incompatibility between Stout camphor tree and Camphor tree. Stout camphor trees had the highest leaf chlorophyll content of 3.44 mg/g in December 2002. Camphor trees and the highest leaf chlorophyll content of 3.11 mg/g in September 2002. The grafts had the highest leaf chlorophyll content of 4.19 mg/g in April 2003. |
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