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中国农学通报 ›› 2015, Vol. 31 ›› Issue (25): 151-156.doi: 10.11924/j.issn.1000-6850.casb15030176

• 林学 园艺 园林 • 上一篇    下一篇

块根紫金牛种苗质量分级标准研究

谢伟玲,柴胜丰   

  1. 广西植物研究所,广西植物研究所
  • 收稿日期:2015-03-22 修回日期:2015-07-19 接受日期:2015-06-12 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 柴胜丰
  • 基金资助:
    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)。

Study on Grading Standard for Ardisia corymbifera var. tuberifera Seedlings

谢伟玲 and 柴胜丰   

  • Received:2015-03-22 Revised:2015-07-19 Accepted:2015-06-12 Online:2015-09-23 Published:2015-09-23

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

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.