| 珙桐繁殖的生物学特性 |
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| 引用本文： | 陈坤荣, 李桐森, 田广红, 赵滇庆, 和丽岗. 珙桐繁殖的生物学特性[J]. 西南林业大学学报, 1998, 18(2): 68-73.doi:10.11929/j.issn.2095-1914.1998.02.002 |
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| 作者姓名： | 陈坤荣 李桐森 田广红 赵滇庆 和丽岗 |
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| 作者单位： | 1. 西南林学院林业系, 昆明, 650224;;2. 云南热带作物科学研究所, 景洪, 666100 |
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| 基金项目： | 云南省应用基础研究基金资助项目.
摘要:珙桐种子繁殖和扦插繁殖的生物学特性研究,弄清了种子休眠的主要原因在于种胚形态后熟和生理后熟,探讨了种子休眠萌发机理.用人工低温冷冻或GA+6-BA处理,可使层积2年尚未萌发的种子70%左右在半月内迅速萌发出苗,缩短休眠期约1年.经不同处理的扦插试验,5%的插条可生根成苗. |
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| 摘 要： | 珙桐种子繁殖和扦插繁殖的生物学特性研究,弄清了种子休眠的主要原因在于种胚形态后熟和生理后熟,探讨了种子休眠萌发机理.用人工低温冷冻或GA+6-BA处理,可使层积2年尚未萌发的种子70%左右在半月内迅速萌发出苗,缩短休眠期约1年.经不同处理的扦插试验,5%的插条可生根成苗.
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| 关 键 词： | 珙桐 繁殖 生物学 |
The Biological Characteristics in Dovetree Davidia involucrata Propagation |
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| Chen Kunrong, Li Tongsen, Tian Guanghong, Zhao Dianqing and He Ligang. The Biological Characteristics in Dovetree Davidia involucrata Propagation[J]. Journal of Southwest Forestry University, 1998, 18(2): 68-73.doi:10.11929/j.issn.2095-1914.1998.02.002 |
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| Authors: | Chen Kunrong Li Tongsen Tian Guanghong Zhao Dianqing He Ligang |
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| Affiliation: | 1. Forestry Department, Southwest Forestry, College, Kunming, 650224;;2. Yunnan Institute of Tropical Crop, Jinghong, 666100 |
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| Abstract: | The whole process of seed and cutting propagation of Davidia involucrata Baill was researched.The main cause of its seed dormancy was afterripening of seed-embryo and seed-physiology.The mechanism of seed dormancy and germination was discussed.Seeds of two-year sand-storage treatment could be germinated up to 70% of surviving rate by means of freezing or GA+6-BA in 15 dyas, which shortened one year time of its seed dormancy.In cutting, 5% rooting rate was the best one among various treatments. |
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| Keywords: | Davidia involucrata Baill Seed propagation Biological characteristics |
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