赣南八角容器苗苗木分级研究

Study on Grading Standard of Seedling Quality of Container Seedlings of Illicium verum Hook.f.in Southern Jiangxi Province

[目的]建立赣南八角1年生容器苗分级标准。[方法]以苗高和地径为分级质量指标,采用逐步聚类分析方法,对八角1年生容器苗苗木分级标准进行研究。[结果]八角1年生容器苗木的3级分级标准为Ⅰ级苗:苗高≥19 cm,地径≥0.25 cm;Ⅱ级苗:15 cm≤苗高<19 cm,0.20 cm≤地径<0.25 cm;Ⅲ级苗:苗高<15 cm,地径<0.20 cm。[结论]该研究可为赣南八角苗木生产中的质量判别和分级提供科学依据。

[ Objective ] To establish grading standard of 1-year-old container seedlings of lllicium verum in southern Jiangxi Province. [ Method] Adopting the method of cluster analysis, classification of 1-year-old container seedlings of I. verum was discussed with seedling height and basal diameter as the index of seedling quality. [ Result ] Three grading standards were proposed as following：grade I：seedling height ≥ 19 cm,basal diameter I〉0.25 cm ; grade II： 19 cm 〉 seedling height ≥ 15 cm ,0.25 cm 〉 basal diameter 1〉0.20 cm ; grade 111 ： seedling height 〈 15 cm, basal diameter 〈0.20 cm. [ Conclusion] The study can provide a scientific basis for quality judgment and classification in production of I. verum in southern Jiangxi Province.