| 摘要: |
| 用100％、81％、41％、28％和5％五种光照处理毛黄肉楠苗木，研究结果表明：（1）5％光照处理下的苗木全部死亡，而另外4个处理苗木存活率为100%，长势较好；（2）毛黄肉楠的光饱和点较低（250-300 µmol.m-2.s-1)，且随遮荫的加强而降低；（3）苗高、地径、叶面积、总生物量、叶绿素含量、表观光合量子速率的变化规律皆以遮荫处理下（81％、41％、28％）为高。综合光合特性、生理特性和自然分布特点表明，毛黄肉楠为中性树种，在半荫蔽条件下生长良好，表现出对弱光环境的适应。 |
| 关键词: 毛黄肉楠 光强 生长适应性 |
| DOI： |
| 分类号: |
| 基金项目:广东樟科乡土观赏树种调查与引种驯化研究(2007B020703002). |
|
| A Preliminary Study on Light Adaptability of Actinodaphne pilosa |
|
xujianxin
|
| Abstract: |
| Treating the seedlings of Actinodaphne pilosa with different light intensity (100％,81％,41％,28％ and 5％ of full light), the results showed that：（1）All the seedlings died in treatment with 5% of full light, and the seedlings of the other 4 treatments grown quite well with livability of 100%; (2) The light saturation point of Actinodaphne pilosa was quite low and decreased with the strengthening of shading; (3) the level of Seedlings’ variations of the height, ground diameter, leaf area, total biomass, chlorophyll content and AQY were higher in treatment with 81％, 41％ and 28％ of full light than in that of 5%. Combined with the photosynthetic characteristics, physiological characteristics and natural distribution characteristics, the author holds that Actinodaphne pilosa was neutral tree species which could grow well in the semi-shady condition and showed its adaptability in low light environment. |
| Key words: Actinodaphne pilosa light intensity growth adaptability |
