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頁籤選單縮合
題 名 | Orthogonal Test Design for Optimizing Culture Medium for in Vitro Pollen Germination of Chinese Chinquapin (Castanea henryi)=正交設計優化錐栗花粉離體萌發率的培養基 |
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作 者 | 鄧智予; 熊歡; 袁德義; 鈕根花; 鄒鋒; | 書刊名 | 臺灣林業科學 |
卷 期 | 33:3 2018.09[民107.09] |
頁 次 | 頁185-195 |
分類號 | 434.28 |
關鍵詞 | 錐栗; 培養基; 正交設計; 花粉管生長; 花粉活力; Castanea henryi; Culture medium; Orthogonal design; Pollen tube growth; Pollen vigor; |
語 文 | 英文(English) |
中文摘要 | 錐栗是中國南方重要的生態兼經濟型幹果樹種。錐栗常有較高的空苞率,這直接與傳粉效率低有關。有效的傳粉效率主要與花粉活力有關,並取決於花粉萌發率和花粉管生長速度。我們研究了錐栗優良無性系"HCHJA-1"花粉萌發率和花粉管生長長度。具體而言,我們採用正交設計的方法,比較了不同濃度的三個關鍵性因素:硼酸、氯化鈣和激勃酸,測定其花粉活力來優化花粉離體萌發率的培養基。結果表明,不同培養基成分對錐栗花粉萌發率的影響顯著。花粉萌發率在13.02%~66.99%之間變化。三個因素影響花粉萌發率的順序為激勃酸>硼酸>氯化鈣。影響花粉管的生長的順序為硼酸>激勃酸>氯化鈣。最適宜促進錐栗花粉活力的培養基為1%瓊脂、10%蔗糖、20 mg L^(-1)激勃酸、100 mg L^(-1)硼酸和50 mg L^(-1)氯化鈣。 |
英文摘要 | Chinese chinquapin (Castanea henryi (Skam) Rehder & Wilson) is an ecologically and economically important nut tree species in southern China. Chinquapin suffers from high rates of empty shells, which are directly related to low pollination efficiency. Efficient pollination mainly depends on pollen vigor, which depends on the pollen grain germination rate and the rate of pollen tube growth. We studied the pollen germination rate and pollen tube length of the advanced chinquapin cultivar HCHJA-1; specifically, we compared the effectiveness of different concentrations of 3 key factors by an orthogonal design method: boric acid (H_3BO_3), calcium chloride (CaCl_2), and gibberellic acid (GA_3), to determine pollen vigor and optimize the culture medium for in vitro pollen germination. Results indicated that chinquapin pollen germination rates were significantly affected by medium components. The pollen germination percentages varied between 13.02 and 66.99%. Three factors influenced pollen germination in the order of decreasing significance: GA_3 > H_3BO_3 > CaCl_2. Pollen tube growth was influenced by these factors as follows: H_3BO_3 > GA_3 > CaCl_2. The optimal culture medium for promoting pollen vigor of C. henryi HCHJA-1 was 1% agar, 10% sucrose, 20 mg L^(-1) GA_3, 100 mg L^(-1) H_3BO_3, and 50 mg L^(-1) CaCl_2. |
本系統中英文摘要資訊取自各篇刊載內容。