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研究生:巫玉春
研究生(外文):Yu-Chun Wu
論文名稱:種子含水率及儲藏溫度對茄苳、台灣欒樹及紅檜種子壽命之影響
論文名稱(外文):Effects of Seed Moisture Contents and Temperatures on the Seed Storage Longevity of Bischofia javanica ,Koelreuteria henryi and Chamaecyparis formosensis
指導教授:郭幸榮郭幸榮引用關係簡慶德簡慶德引用關係
指導教授(外文):Dr.Shing-Rong KuoDr.Ching-Te Chien
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:森林學研究所
學門:農業科學學門
學類:林業學類
論文種類:學術論文
論文出版年:2000
畢業學年度:88
語文別:中文
論文頁數:66
中文關鍵詞:含水率儲藏溫度茄苳紅檜台灣欒樹種子壽命
外文關鍵詞:Moisture ContentsTemperaturesBischofia javanicaChamaecyparis formosensisKoelreuteria henryiSeed Longevity
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中 文 摘 要
由於林木開花結實之不規則性,種子儲藏已成為今日造林計畫不可缺的一部分,種子的儲藏特性不論對商業用種子的品質、或種原庫的品種保存,都有很重要的意義;對於台灣之鄉土造林、綠化和珍稀樹種茄苳、臺灣欒樹及紅檜,種子儲藏壽命的探討,也就十分值得研究。本論文以茄苳、臺灣欒樹及紅檜種子為材料,進行不同含水率和在不同溫度下的儲藏試驗,就其儲藏行為加以探討。
低溫層積處理一方面破除了茄苳及紅檜之輕微休眠現象,也可以大為縮短種子達到總發芽率之 50%所需時間。茄苳、紅檜及台灣欒樹種子在低於10%含水率及低溫(-20℃、5℃)下,種子並無活力下降現象,其儲藏壽命與含水率及儲藏溫度成反比,歸類於正儲型種子;茄苳在含水率7.6%及儲藏溫度5℃下,紅檜在含水率4.4%及溫度-20℃下儲藏時,儲藏效果最佳。台灣欒樹種子在含水率8.8%及溫度15℃之條件下儲藏效果較佳。
茄苳、紅檜及台灣欒樹種子之試驗期間短,無法使所有之儲藏條件皆符合直線迴歸之關係,唯有改變儲藏條件或延長儲藏試驗時間,觀察在各種儲藏條件下之種子敗壞情形,方可以活力方程式預估種子的儲藏壽命。
Effects of Seed Moisture Contents and Temperatures on the Seed Storage Longevity of Bischofia javanica, Koelreuteria henryi and Chamaecyparis formosensis
Abstract
Seed storage is an integral part of today''s forest regeneration and plantation establishment programs because of the irregular flowering and seed crop production of trees. The seed storage behavior is very important to both commercial seed quality and the conservation of plant germplasm resources; for the native plantation species of Taiwan: the researches of Bischofia javanica, Koelreuteria henryi and Chamaecyparis formosensis, are valuable on the seed storage longevity. In this study, we performed the storage experiment of different moisture contents and different temperatures on the seeds of Bischofia javanica, Koelreuteria henryi and Chamaecyparis formosensis., in order to understand the storage type.
The cold and wet storage of the Bischofia javanica and Chamaecyparis formosensis, seeds could break the dormancy and reducing the time of reaching 50% of the total germination (G50).Under the conditions of moisture content of 10% and temperatures of -20℃and 5℃, there was no decrease of viability in the seeds of Bischofia javanica, Chamaecyparis formosensis and Koelreuteria henry. The storage longevity of these three species was inproporational to moisture content and storage temperature, which is similar to the characteristics of the orhtodox seed. The best storage condition for the seeds of Bischofia javanica, Chamaecyparis formosensis and Koelreuteria henry was moisture content of 7.6% and storage temperature of 5℃,or moisture content of 4.4% and storage temperature of -20℃, or moisture content of 8.8% and storage temperature of 15℃, respectively.
Not all of the storage conditions for the seeds of Bischofia javanica, Koelreuteria henryi and Chamaecyparis formosensis were totally matched to the liner regression
analysis, we might use linear regression analysis to predict the trend of seed viability only under the selected moisture contents and temperature or extortion of storage time to have viability changes.
摘要----------------------------------------------------------------------------------Ⅰ
Abstract------------------------------------------------------------------------------Ⅱ
表次----------------------------------------------------------------------------------Ⅲ
圖次----------------------------------------------------------------------------------Ⅳ
壹、前言----------------------------------------------------------------------------1
貳、前人研究----------------------------------------------------------------------2
參、試驗材料及方法-------------------------------------------------------------6
肆、結果----------------------------------------------------------------------------13
伍、討論----------------------------------------------------------------------------55
陸、結論----------------------------------------------------------------------------62
柒、參考文獻----------------------------------------------------------------------63
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