In order to promote the high-quality and standardized development production of Litsea cubeba(Lour.)Pers.,50 seedlings were randomly selected for investigation.Correlation analysis was used to determine the grading index of Litsea cubeba(Lour.)Pers.,and the grading standard of Litsea cubeba(Lour.)Pers.seedlings was calculated by gradual clustering analysis.The results showed that plant base diameter and plant height were used as the quality grading indexes of Litsea cubeba(Lour.)Pers.seedlings,and the grading standard was obtained.Grade Ⅰ seedlings:Plant base diameter≥8.75 mm,plant height≥83.8 cm;Grade Ⅱ seedlings:6.28 mm≤plant base diameter<8.75 mm,69.6 cm≤plant height<83.8 cm;Grade Ⅲ seedlings(unqualified seedlings):Plant base diame-ter<6.28 mm,plant height<69.6 cm.Among the 50 Litsea cubeba(Lour.)Pers.seedlings extracted,28％were grade Ⅰ and Ⅱ(quali-fied seedlings)and 72％were grade Ⅲ(unqualified seedlings).
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