| 油松种胚休眠特性及解除胚休眠的方法 |
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| 引用本文： | 王利宝,董丽芬.油松种胚休眠特性及解除胚休眠的方法[J].中南林业科技大学学报,2006,26(3):19-23. |
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| 作者姓名： | 王利宝 董丽芬 |
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| 作者单位： | 中南林业科技大学资源与环境学院 湖南长沙410004(王利宝)，西北农林科技大学林学院 陕西杨陵712100(董丽芬) |
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| 摘 要： | 对油松种子的离体胚进行培养试验.结果表明:油松种胚具有休眠特性,种子属于中度休眠特性的种子,且不同种粒之间休眠深浅有差异;赤霉素对解除油松种胚休眠也有一定作用,但效果不及低温层积处理,经过低温层积的种子没必要再用赤霉素来解除胚休眠.低温层积简便、成本低,是油松种子播前预处理的最好方法之一.
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| 关 键 词： | 森林培育 油松 离体胚培养 休眠特性 低温层积 |
| 文章编号： | 1000-2502(2006)03-0019-05 |
| 修稿时间： | 2005年9月5日 |
Dormancy Trait of Pinus tabulaeformis Embryo and the Methods to Relieve This Trait |
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| WANG Li-bao,DONG Li-fen.Dormancy Trait of Pinus tabulaeformis Embryo and the Methods to Relieve This Trait[J].Journal of Central South Forestry University,2006,26(3):19-23. |
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| Authors: | WANG Li-bao DONG Li-fen |
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| Abstract: | Results of the experiment on culturing excised embryos show that the embryo of Pinus tabulaeformis has the property of dormancy.Seeds belong to the category of medium dormancy and the germination of each seed is different.Cold stratification has better effects than GA_3 on relieving dormancy and has a higher rate,a bigger energy and a higher speed of germination.Though GA_3 plays a positive role on breaking dormancy,its effectiveness is not as good as cold stratification.It is not indispensable that excised embryos be treated by GA_3.Cold stratification is one of the best methods to pre-treat seeds of Pinus tabulaeformis before sowing because it is a convenient way and costs low. |
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| Keywords: | GA3 |
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