JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (4): 184-190.doi: 10.12302/j.issn.1000-2006.202207003

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Effects of different substrate compositions and concentrations on the growth of Didymodon tectorus

YU Wenxin1(), HE Xiao1, LEI Shaogang2, KOU Jin3, FENG Chao1,*()   

  1. 1. Key Laboratory of Forage Cultivation,Processing and High Efficient Utilization of Ministry of Agriculture,Key Laboratory of Grassland Resources,Ministry of Education,College of Grassland,Resources and Environment,Inner Mongolia Agricultural University,Hohhot 010011,China
    2. School of Environment and Spatial Informatics, China University of Mining and Technology,Xuzhou 221116,China
    3. College of Life Science, Northeast Normal University,Changchun 130024,China
  • Received:2022-07-02 Revised:2022-08-20 Online:2024-07-30 Published:2024-08-05
  • Contact: FENG Chao E-mail:yuwenxinnmg@163.com;hujiaof@sina.com

Abstract:

【Objective】Didymodon tectorus is a typical drought-tolerant moss species and a dominant plant in biological soil crusts in deserts, sandy areas, and loess hilly regions. This study aims to investigate the effects of different substrate proportions on the growth of D. tectorus and provide a scientific basis for the rapid propagation of D. tectorus.【Method】D. tectorus was selected as the experimental material, and three materials, including peat soil, perlite and vermiculite, were chosen as substrate components. The coverage, density and chlorophyll content of D. tectorus were measured to study the impact of different substrate proportions on its growth.【Result】Different substrate proportions had varions effects on the coverage and density of D. tectorus. The substrate with a volume ratio of 2∶1 of peat soil to vermiculite showed the highest coverage (70.67%) and density (12.2 plants/cm2) of D. tectorus. Additionally, this substrate proportion exhibited the highest chlorophyll content (2.157 mg/g).【Conclution】Through comprehensive analysis of the growth and physiological indicators of D. tectorus under different substrate proportions, the 2∶1 volume ratio of peat soil to vermiculite was found to be best for its growth. This substrate proportion can be effectively applied for the rapid propagation of D. tectorus.

Key words: Didymodon tectorus, substrate proportion, artificial culture, chlorophyll content

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