| 长序榆苗木生长规律的研究 |
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| 引用本文： | 张纪卯,赖文胜.长序榆苗木生长规律的研究[J].福建林业科技,1993,20(3):8-13. |
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| 作者姓名： | 张纪卯 赖文胜 |
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| 作者单位： | 福建省来舟林业试验场
(张纪卯，陈巧女)，南京林业大学(赖文胜) |
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| 摘 要： | 本文以长序榆种子育苗为对象,研究苗木年生长规律。采用有序样本聚类分析法划分苗木的生长时期,拟合了高、径生长的logistic方程,找出苗木高、径及主根生长的最优回归方程,了解苗木各部分生长的相关关系。多元回归分析表明;气温是影响苗木生长的主导因子。
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| 关 键 词： | 长序榆 苗高 地径 根 |
Studies on the Growth Rhythm of Ulmus elongata Seedlings |
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| Zhang Jimao,Chen Qiaonu, Lai Wensheng Laizhou Forest Experimental Farm of Fujian Province,Nanjing University of Forestry.Studies on the Growth Rhythm of Ulmus elongata Seedlings[J].Journal of Fujian Forestry Science and Technology,1993,20(3):8-13. |
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| Authors: | Zhang Jimao Chen Qiaonu Lai Wensheng Laizhou Forest Experimental Farm of Fujian Province Nanjing University of Forestry |
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| Abstract: | This article studied the annual growth rhythm of Ulmus elongataseedlings. The growth periods were divided for the seedlings by adopting clusteranalyses of ordered samples, the logistic equations were fitted for the growth ofheight and diameter, the optimum regression equation was found for the growthof seedling height, diameter and main root, and the relations of each part growthof the seedlings were known. The multivariate regression analysis revealed thatthe temperature was the main factor influencing the growth of U. elongataseedlings. |
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| Keywords: | Ulmus elongata height of seedlings ground diameter root |
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