南京林业大学学报（自然科学版）

南京林业大学学报（自然科学版） ›› 1988, Vol. 12 ›› Issue (03): 15-23.doi: 10.3969/j.jssn.1000-2006.1988.03.002

• 研究论文 • 上一篇    下一篇

湿地松苗木品质指标的选择与分级

黄宝龙;刘成林   

  1. 南京林业大学;南京林业学校
  • 出版日期:1988-09-18 发布日期:1988-06-18

SELECTIONS AND CLASSIFICATIONS OF QUALITATIVE INDEX OF PINUS ELLIOTTII SEEDLINGS

Huang Bao long (Nanjing Forestry University)Liu Cheng lin   

  1. Nanjing Forestry Technical School
  • Online:1988-09-18 Published:1988-06-18

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摘要： <正>本文根据田间试验测定数据,用因子分析方法,以湿地松为对象,对苗木质量及其分级依据进行了初步分析。结果表明:湿地松苗木分级可按因子得分y_1、y_2作为指标;不同等级苗木之间在生理指标上也存在差异。

Abstract: In accordance with the datum of the field test and investigation, taking factors analysis regarding Pinue elliotii seedlings as object a preliminary study has been made on quality of seedlings and classifications accordingly. The results are as follows: the factors score y1 and y2 are possibly the clas-sificatory index of Finus ellioltii seedlings, and the seedlings of various classifications have different physiological index.

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