摘要
通过对中泰南五味子百日容器苗生长指标间相关性分析,提出了以苗高和地径作为该树种苗木分级的质量指标。采用逐步聚类分析方法,结果表明:苗木可分为三级,I级苗苗高H≥13.7cm,地径D≥0.42cm;Ⅱ级苗10cm≤H<13.7cm,0.37cm≤D<0.42cm;Ⅲ级苗苗高H<10cm,地径D<0.37cm。各级苗木之间存在着极显著差异,说明苗木按此划分为3级是科学合理的,在生产实践中具有指导意义。
Correlation analysis to growth factors of 100 days container seedling of Kadsura ananosma, and seedling height and diameter were proposed as the main indices of quality grading. By adopting stepwise clustering analysis, the result showed that：seedlings with height≥13.7cm,diameter≥0.42cm were classified as the first grade,those with 10cm≤height〈13.7cm, 0.37cm≤diameter〈0.42cm were classified as the second grade,those with height%10cm,diameter〈0.37cm were classified as the third grade. There were significant differences between all grade seedlings, the result showed that the seedling classification was scientific and reasonable and could guide the seedling prodution and cultivation.
出处
《山东林业科技》
2015年第3期38-40,共3页
Journal of Shandong Forestry Science and Technology
基金
景洪市科技项目(2013043)(2014040
云南省技术创新人才支撑项目(2014HB101)
