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| Study on the suitable cultivation density of Mentha haplocalyx from different producing areas introduced to Tianjin |
| Hits 518 Download times 443 Received:December 20, 2022 |
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| DOI
10.11656/j.issn.1672-1519.2023.03.16 |
| Key Words
Mentha haplocalyx|cultivation density|biological characteristics|yield|quality |
| Author Name | Affiliation | E-mail | | YUN Xiuwei | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | WANG Lanfang | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | BAI Mingyu | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | GU Mingze | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | YU Feng | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | XU Kaige | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | | | LI Tianxiang | Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China | litianxiang612@sina.com |
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| Abstract
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| [Objective] The growth and development of different germplasms of Mentha haplocalyx from 10 producing areas under different plant spacing were systematically investigated,and the appropriate cultivation density was screened based on the medicinal components and biomass,so as to provide scientific research for further large-scale and standardized field planting and promotion of Mentha haplocalyx support.[Methods] The underground rhizomes of Mentha haplocalyx with different germplasms from ten origins planted in 2020 were collected,and three cultivation densities of 10 cm×30 cm,15 cm×30 cm,and 20 cm×30 cm were used to determine the effect of different plant spacing on the growth index of Mentha haplocalyx yield and the effect of active ingredients.[Results] With the increase of cultivation density,the plant height of Mentha haplocalyx in different production areas increased gradually,the number of stem nodes showed an increasing trend,the stem diameter became smaller,the number of branches decreased,the yield per plant decreased,but the length and width of Mentha haplocalyx leaves did not change significantly. Based on the yield of Mentha haplocalyx and the content of medicinal components,PCA was used to comprehensively evaluate the quality of Mentha haplocalyx under different cultivation densities. The results showed that in Tianjin,the optimal cultivation density of Mentha haplocalyx in Guangzhou,Jiaozuo,Changchun,Luquan,Nanjing,Qinhuangdao and Anguo was 15 cm×30 cm,the optimum cultivation density of Mentha haplocalyx in Xinyang,Pingshan and Yancheng was 10 cm×30 cm.[Conclusion] Appropriate cultivation density can effectively improve the quality and yield of Mentha haplocalyx,and it has certain promotion significance in the field planting practice of Mentha haplocalyx. |
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