通过对米老排轻基质容器苗木开展调查,以主成分分析法获得最大特征向量值,采用标准差法对轻基质容器苗木进行分级,确定评价1年生米老排轻基质容器苗木质量的关键指标是苗高和地径,其中I级苗:苗高>105 cm,地径>0.7 cm;Ⅱ级苗:苗高65～105 cm,地径 0.4～0.7 cm.
Research on Quality Evaluation and Grading Standards for Seedling in the Mytilaria laosensis Light Substrate Container
Through the investigation of Mytilaria laosensis light matrix container seedlings,the maximum eigenvector value was obtained by principal component analysis method,and the standard deviation method was used to determine the key indicators for evaluating quality of the seedlings are height and ground diameter,including grade I seedlings:seedling height>105 cm,ground diameter>0.7 cm;grade Ⅱ seed-ling:65-105 cm,ground diameter 0.4-0.7 cm.
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