| 乳源木莲苗高年生长规律 |
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| 引用本文： | 刘春霞,陈存及,赖培淼,张国防,赵思金. 乳源木莲苗高年生长规律[J]. 福建林学院学报, 2003, 23(2): 173-176 |
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| 作者姓名： | 刘春霞 陈存及 赖培淼 张国防 赵思金 |
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| 作者单位： | 1. 福建农林大学林学院,福建南平,353001
2. 沙县林业委员会,福建沙县,365500 |
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| 基金项目： | 福建省教育委员会科学基金资助项目(JA99196). |
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| 摘 要： | 从乳源木莲苗高年生长曲线上看出,苗高从5月开始快速生长,7月进入速生期,7月中旬达到生长高峰,9月生长速度变缓,10月净生长量开始下降,至11月生长逐渐趋于稳定.以乳源木莲定期观测的苗高净生长量为样本,采用有序样本聚类分析将乳源木莲苗高生长过程划分为4个时期,出苗期为3月12日至4月30日,幼苗期为5月1日至6月30日,苗高速生期为7月1日至9月30日,苗木生长后期为10月1日至12月16日.根据各时期苗高的生长特点,提出了关键育苗措施,以提高成苗率、质量与产量.
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| 关 键 词： | 乳源木莲 生长期划分 有序样本 聚类分析 |
| 文章编号： | 1001-389X(2003)02-0173-04 |
| 修稿时间： | 2002-10-30 |
The Study on the Growth of Height of Manglietia yuyuanensis Law Seedlings |
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| Abstract: | It is showed that its height grow rapidly from May,accelerate in July with the peak of the height growth in Jul15, and decline from Sep,and the growth stop in Decfrom the curve of the growth of height of Manglietia yuyuanensis seedlings Taking the height net growth increment of Manglietia yuyuanensis seedlings as samples,the height growth process of Manglietia yuyuanensis seedlings is divided into 4 stages by the sequential sample cluster analysis: emergence stage(May 12~Apr30), early growth stage (May 1~Jun30),rapid growth stage(Jul1~Sep30)and late growth stage (Oct1~Dec16) According to the growth of seedlings in different stages,the key managements of seedlings for cultivating is put forward to improve the rate of survival,the quality and the quantity of seedlings |
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| Keywords: | Manglietia yuyuanensis growth stage division sequential sample cluster analysis |
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