Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (3): 42-47.doi: 10.11924/j.issn.1000-6850.casb2024-0176

Previous Articles     Next Articles

Quantitative Evaluation on Stem Cutting Effectiveness of Medicinal Tea Chrysanthemum

TANG Guimei1,2,3(), HUANG Guolin1,2,3, ZHAO Fan1,2,3, LIU Yang1,2,3, ZHANG Li1,2,3, LI Weidong1,2,3, XIAO Xiaoling1,2,3()   

  1. 1 Hunan Horticultural Research Institute, Hunan Academy of Agricultural Science, Changsha 410125
    2 Yuelu Mountain Laboratory, Changsha 410125
    3 Hunan Provincial Key Laboratory of Germplasm Innovation and Comprehensive Utilization of Garden Flowers, Changsha 410125
  • Received:2024-03-13 Revised:2024-08-07 Online:2025-01-25 Published:2025-01-20

Abstract:

This study aims to utilize comprehensive indicators to evaluate the rooting effect of chrysanthemum used in medicinal tea through cuttings. This approach seeks to overcome the limitations of using a single or a limited number of indicators, which may lead to subjective and one-sided evaluations. The ultimate goal is identifying chrysanthemum varieties with superior rooting effects for medicinal tea production. The quantitative evaluation of the rooting performance of different chrysanthemum varieties used for medicinal tea through cutting propagation is conducted in this study. Eight indicators, including root number, root length, longest root length, root diameter, maximum root diameter, plant height, canopy width, and survival rate, were measured after 30 days of cutting propagation. The rooting situation of the eight chrysanthemum varieties was quantitatively assessed using principal component analysis, subordination function method, and cluster analysis. The cutting propagation performance of the chrysanthemum varieties was ranked by transforming the eight individual indicators into five independent comprehensive indicators through principal component analysis and calculating comprehensive indicator values using the subordination function method. The results of grafting eight chrysanthemum varieties in descending order of effectiveness were ‘Huaibingju’, ‘Hangbaiju’, ‘Baigongju’, ‘Boju’, ‘Chuju’, ‘Jinsihuangju’, ‘Wuyuanhuangju’ and ‘Huanggongju’. Using the comprehensive evaluation value of eight medicinal tea chrysanthemum varieties as the index for cluster analysis, the results indicated that these varieties could be categorized into three groups based on their grafting effects: best, moderate, and poor. Specifically, ‘Huaibingju’, ‘Hangbaiju’ and ‘Baigongju’ exhibited the best grafting effects, while ‘Boju’, ‘Chuju’, ‘Jinsihuangju’ and ‘Wuyuanhuangju’ showed moderate effects, and ‘Huanggongju’ had the poorest grafting effect.

Key words: chrysanthemum, stem cutting effectiveness, principal component analysis, subordination function method, cluster analysis, comprehensive evaluation, medicinal tea chrysanthemum, rooting effect