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| 东北刺人参苗木分级研究 | |
| 引用本文： | 周景全,陈树华,何延治,刘迪,刘继生. 东北刺人参苗木分级研究[J]. 延边大学农学学报, 2009, 31(4): 243-246,270 |
| 作者姓名： | 周景全 陈树华 何延治 刘迪 刘继生 |
| 作者单位： | 1. 吉林森林工业集团有限责任公司 2. 吉林省林业调查规划院,吉林,长春,130022 3. 延边大学农学院,吉林,龙井,133400 |
| 基金项目： | 国家林业局标准化项目 |
| 摘 要： | 采用逐步聚类分析方法,探讨东北刺人参当年生容器苗苗木的分级标准,以地径和根系长度作为分级的质量指标,得出3级分级标准,即Ⅰ级苗：地径≥0.83 cm,根长≥23.67 cm;Ⅱ级苗：0.75 cm≤地径〈0.83 cm,15.10 cm≤根长〈23.67 cm;Ⅲ级苗：地径〈0.75 cm,根长〈15.10 cm.在生产中,可将地径〉0.75 cm,根系长度〉15.0 cm的苗木视为合格苗用于造林. |
| 关 键 词： | 东北刺人参 容器苗 苗木分级 逐步聚类分析 |
Study of vessel seedlings gradation of annual Oplopanax elatus |
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| ZHOU Jing-quan,CHEN Shu-hua,HE Yan-zhi,LIU Di,LIU Ji-sheng. Study of vessel seedlings gradation of annual Oplopanax elatus[J]. Journal of Agricultural Science Yanbian University, 2009, 31(4): 243-246,270 | |
| Authors: | ZHOU Jing-quan CHEN Shu-hua HE Yan-zhi LIU Di LIU Ji-sheng |
| Affiliation: | ZHOU Jing-quan, CHEN Shu-hua, HE Yan-zhi, LIU Di, LIU Ji-sheng. (1. Forest Industrial Limited Liability Company of Jilin;2. Forest Ivestigation Plan Courtyard of Jilin ： Changchun Jilin 130022, China ; 3. Agricultural College of Yanbian University ,Longjing Jilin 133400,China) |
| Abstract: | The seedling grade has been studied and the factors are diameter of root basic length of root by K--Means Cluster . The results showed that No. I is the diameter basic ≥0.38 cm,root length≥23.67 cm;No. II is 0.75 cm≤diameter root basicS0.83 15.10 cm≤root length 423. 67 cm; the No. III is diameter root basic〈0. 75 cm, and root era, root length〈15.10 cm . On stream,the seedling of diameter root basic〉0.75 cm and the length of root 〉15.0 cm is good for forestation. |
| Keywords: | Oplopanax elatus vessel seedlings seedling gradation K-Means cluster |
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