| 块根紫金牛种苗质量分级标准研究 |
| |
| 引用本文： | 谢伟玲,柴胜丰. 块根紫金牛种苗质量分级标准研究[J]. 中国农学通报, 2015, 31(25): 151-156. DOI: 10.11924/j.issn.1000-6850.casb15030176 |
| |
| 作者姓名： | 谢伟玲 柴胜丰 |
| |
| 作者单位： | 广西植物研究所,广西植物研究所 |
| |
| 基金项目： | 广西自然科学基金项目“广西岩溶特有药用植物块根紫金牛适应水分胁迫的生理生态机制”(2012GXNSFBA053069)；广西植物研究所基本业务费项目“广西岩溶珍贵药用植物种苗繁殖技术标准操作规程制定及种苗开发”（桂植业14013）；桂林市科技攻关项目“桂北地区珍贵乡土树种良种选育及其在漓江流域退化生态系统中的应用”（20130414）。 |
| |
| 摘 要： | 为制定科学合理的块根紫金牛种苗质量分级标准，采用相关分析、逐步聚类分析方法对1 年生块根紫金牛种子苗制定分级标准。得出了以地径和株高作为块根紫金牛种苗的分级质量指标，并得出其分级标准，即：I 级种苗：地径≥0.59 cm，株高≥23.82 cm；II 级种苗：0.55 cm≤地径＜0.59 cm，14.94 cm≤株高＜23.82 cm；III 级种苗：地径＜0.55 cm，株高＜14.94 cm。运用逐步聚类分析法制定块根紫金牛种苗质量分级标准，方法可行，结果可靠。
|
| 关 键 词： | 玉米收获 玉米收获 机械化程度 Logistic模型 Ordered Probit模型 |
| 收稿时间： | 2015-03-22 |
| 修稿时间： | 2015-07-19 |
Study on Grading Standard for Ardisia corymbifera var. tuberifera Seedlings |
| |
| Abstract: | In order to make a scientific and rational grading standard for Ardisia corymbifera var. tuberifera seedlings, the correlation analysis and stepwise cluster analysis method were applied to establish the grading standard for 1-year-old seedlings of Ardisia corymbifera var. tuberifera. The ground diameter and plant height were chosen as the quality indicators for grading. The grading standard for the seedlings of Ardisia corymbifera var. tuberifera worked out as follows: ground diameter≥0.59 cm and plant height≥23.82 cm for grade I seedlings; 0.55 cm≤ ground diameter＜ 0.59 cm and 14.94 cm≤ plant height＜23.82 cm for grade II seedlings; ground diameter＜0.55 cm and plant height＜14.94 cm for grade III seedlings. It is feasible and reliable to use stepwise cluster analysis method to establish the grading standard for Ardisia corymbifera var. tuberifera seedlings. |
| |
| Keywords: | Ardisia corymbifera var. tuberifera seedlings grading standard correlation analysis cluster analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
|
点击此处可从《中国农学通报》下载全文 |
