| 基于主成分分析的常绿—半常绿杨树磷素利用率评价 |
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| 引用本文： | 钱莲文,郭建宏.基于主成分分析的常绿—半常绿杨树磷素利用率评价[J].福建林业科技,2012,39(4):5-8,15. |
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| 作者姓名： | 钱莲文 郭建宏 |
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| 作者单位： | 1. 泉州师范学院资源与环境科学学院,福建泉州,362000
2. 泉州师范学院陈守仁工商信息学院,福建泉州,362000 |
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| 基金项目： | 国家自然科学基金资助项目(31100459);福建省教育厅、财政厅高校服务海西项目(A104) |
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| 摘 要： | 采用砂培试验,对常绿杨3个无性系在低磷胁迫下的苗高生长量、地径生长量、根冠比、生物量、单叶面积、叶绿素含量及光合速率等7个指标进行主成分分析.结果表明,选用的7个指标之间存在显著的相关性.选取代表常绿杨生长性状78.58％的前2个主成分作为常绿杨低磷胁迫下的生长性状选择的综合指标,得出3个无性系中磷素利用率最优是A-61/186,其次是A-65/27、A-65/31.
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| 关 键 词： | 常绿杨树 主成分分析 生长性状 磷素利用率 |
Evaluation on Evergreen and Semievergreen Poplar Phosphorus Utilization Efficiency Based on Principal Component Analysis |
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| QIAN Lian-wen,GUO Jian-hong.Evaluation on Evergreen and Semievergreen Poplar Phosphorus Utilization Efficiency Based on Principal Component Analysis[J].Journal of Fujian Forestry Science and Technology,2012,39(4):5-8,15. |
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| Authors: | QIAN Lian-wen GUO Jian-hong |
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| Institution: | 1.College of Resource and Environment Science,Quanzhou Normal University,Quanzhou 362000,Fujian,China; 2.TSL School of Business and Information College,Quanzhou Normal University,Quanzhou 362000,Fujian,China) |
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| Abstract: | Principal components analysis were used to study growth characters of 3 evergreen poplar clones under the low-phosphorus stress.7 growth indexes were selected for this,these were height growth,base diameter growth,root-shoot ratio,single biomass,single leaf area,chlorophyll content and photosynthesis speed.The results showed that 7 growth indexes had a remarkable correlation.The principal components analysis results indicated that the first and second principal components generally took 78.58% of the whole as growth character select integration indexes under the low-phosphorus stress.The result of sorting out the rank of 3 evergreen poplar clones were A-61/186,A-65/27and A-65/31. |
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| Keywords: | evergreen poplar main principal component analysis growth character phosphorus utilization rate |
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