The effect of the surrounding vegetation on the seed germination and growth of mountain-cultivated ginseng (MCG, Panax ginseng C.A. Meyer) was investigated. Seed germination rate and growth were tested for allelopathy effects on four forest tree species after treatment with fallen leaves and leaf extracts. In the case of soil treatment through fallen leaves and crushed leaves, the germination rate was lower in the Quercus myrsinifolia treatments, and the average germination time was slower when Chamaecyparis obtusa was treated. In the case of Pinus densiflora and Quercus variabilis, which are used in most of the MCG cultivation areas, they did not have a significant effect on seed germination. In the fallen leaves treatments, the stem showed a tendency to lengthen. The hot water extract treatment showed a higher germination percentage than the cold water extract treatment. The extract treatment showed a deficient germination percentage of some MCG seeds. However, in the case of the treatments except for this, the germination percentage was similar to that of the control treatment. However, the Mean Germination Time, germination rate, and germination value were faster and higher than the control treatment. As a result of calculating the allelopathic index (AI) of MCG according to the extract treatment of 4 species, most had a negative effect on germination, and P. densiflora and Q. variabilis extracts showed the most significant effect. The ginsenoside content was higher in the fallen leaves treatment than in the control. The above results will help select and manage MCG plantations.

Introduction
Materials and Methods
    1. Plant material and extract preparation
    2. Allelopathy effect determination
    3. Seed germination
    4. Investigation of growth characteristics
    5. Allelopathic index calculation
    6. Analysis of crude saponin and ginsenoside
    7. Statistical analysis
Results and Discussion
    1. Germination and growth of MCG seeds according tothe treatment of fallen leaves or crushed leaves
    2. Germination and growth of MCG seeds accordingto extract treatment
    3. Calculation of allelopathic index according to extracttreatment
    4. Ginsenoside content according to leaf fall treatment
Acknowledgments

• Seong Hyeon Yong(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Yeong Rong Seo(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Kwan Been Park(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Do Hyeon Kim(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Seung A Cha(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Ji Hyeon Lee(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Seon A Kim(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea)
• Hak Gon Kim(Forest Research Department, Gyeongsangnam-do Forest Environment Research Institute, Jinju 52615, Korea)
• Myung Suk Choi(Divisition of Environmental Forest Science Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea) Corresponding author