<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。

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.