| 4个黑杨派新无性系苗期生长特性 |
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| 引用本文： | 秦光华,姜岳忠.4个黑杨派新无性系苗期生长特性[J].东北林业大学学报,2004,32(5):7-9. |
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| 作者姓名： | 秦光华 姜岳忠 |
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| 作者单位： | 山东省林业科学研究院,济南,250014 |
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| 摘 要： | 利用Logistic方程对黑杨派(Populus aigeiros)杨树4个无性系的扦插苗高年生长节律进行拟合，拟合效果、显著，并以此将无性系扦插苗的生长过程分为成活期、生长前期、速生期和生长后期。对影响苗木生长的气温、空气相对湿度、日照时数和降水量进行灰色关联度分析，认为气温对苗高生长影响最大，降水量影响最小。
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| 关 键 词： | 黑杨派 无性系 苗期 Logistic方程 生长模型 灰色关联度 |
| 修稿时间： | 2003年3月20日 |
Growth Characteristics of Four Poplar Clones (Populus aigeiros) at Nursery Stage |
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| Qin Guanghua,Jiang Yuezhong.Growth Characteristics of Four Poplar Clones (Populus aigeiros) at Nursery Stage[J].Journal of Northeast Forestry University,2004,32(5):7-9. |
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| Authors: | Qin Guanghua Jiang Yuezhong |
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| Abstract: | Logistic equation is applied to model annual height increment of four poplar clones (Populus aigeiros) at seedling stage. Influence of climatic factors such as air temperature, relative humidity, precipitation and illuminating hours on the height growth is analyzed. The results show that correlation of the modeling is significant. Based on the equation, annual growth of the seedlings can be divided into four phases, namely survival phase, pre-growth phase, fast-growth phase and post-growth phase. Growth performance of each phase is also described and discussed. Air temperature is believed to have the most significant influence on the height growth and precipitation the least. |
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| Keywords: | Populus aigeiros Poplar clone Seedling stage Logistic equation Growth model Gray correlation analysis |
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