HUBEI AGRICULTURAL SCIENCES ›› 2024, Vol. 63 ›› Issue (7): 115-119.doi: 10.14088/j.cnki.issn0439-8114.2024.07.019

• Horticulture & Local Products • Previous Articles     Next Articles

Grading standard for Litsea cubeba seedlings

XIAO Ni-jie1,2, FAN Jin-shun3, DENG Li-li2, WEI Xiao2, SHI Yan-cai2   

  1. 1. College of Tourism and Landscape Architecture, Guilin University of Technology, Guilin 541000, Guangxi, China;
    2. Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, Guangxi,China;
    3. Guilin Forestry and Garden Integrated Service Center, Guilin 541100, Guangxi, China
  • Received:2023-03-20 Online:2024-07-25 Published:2024-07-24

Abstract: 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 diameter < 6.28 mm, plant height < 69.6 cm. Among the 50 Litsea cubeba (Lour.) Pers. seedlings extracted, 28% were grade I and II (qualified seedlings) and 72% were grade III (unqualified seedlings).

Key words: Litsea cubeba (Lour.)Pers., seedlings, grading standard, correlation analysis, gradual cluster analysis

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