Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth
There is a growing need for sustainable, efficient methods to promote plant growth and protect crops, with plant extracts offering natural, multi-component solutions. Based on previous observations, <i>Psidium guajava</i>, <i>Aloe vera</i>, <i>Allium sativum</i> a...
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MDPI AG
2025-01-01
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| author | Ei Ei Hyun Hwa Park Yong In Kuk |
| author_facet | Ei Ei Hyun Hwa Park Yong In Kuk |
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| description | There is a growing need for sustainable, efficient methods to promote plant growth and protect crops, with plant extracts offering natural, multi-component solutions. Based on previous observations, <i>Psidium guajava</i>, <i>Aloe vera</i>, <i>Allium sativum</i> and <i>Medicago sativa</i> were selected from 17 water extracts to investigate how the application times of soil sprays affect the antioxidant enzymes and secondary metabolites in fruity and leafy vegetables at different growth stages. From 1 week after sowing (WAS) to 4 WAS, all applications increased the shoot fresh weight by 42–69% in cucumbers, 40–64% in tomatoes, 46–65% in kale and 42–63% in lettuce. These applications also increased the photosynthesis, flavonoids and antioxidative enzymes (ascorbate peroxide (APOD) and guaiacol peroxidase (GPOD)), which provided the plants with a balanced supply of nutrients essential for growth. In the real world, these results show that the use of natural extracts (<i>P. guajava</i> and <i>A. sativum</i>) can be a sustainable, eco-friendly alternative to synthetic fertilizers and pesticides, helping to improve crop yields and metabolism without harming the environment. This approach could reduce the reliance on chemical inputs and promote more sustainable agricultural practices, especially in controlled environments, like greenhouses, where crops like cucumbers and kale are grown. |
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| publishDate | 2025-01-01 |
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| spelling | doaj-art-79018b3bb73246a8a8bafb0d26e985302025-01-24T13:46:53ZengMDPI AGPlants2223-77472025-01-0114223710.3390/plants14020237Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of GrowthEi Ei0Hyun Hwa Park1Yong In Kuk2Department of Oriental Medicine Resources, Sunchon National University, Suncheon 57922, Republic of KoreaDepartment of Oriental Medicine Resources, Sunchon National University, Suncheon 57922, Republic of KoreaDepartment of Oriental Medicine Resources, Sunchon National University, Suncheon 57922, Republic of KoreaThere is a growing need for sustainable, efficient methods to promote plant growth and protect crops, with plant extracts offering natural, multi-component solutions. Based on previous observations, <i>Psidium guajava</i>, <i>Aloe vera</i>, <i>Allium sativum</i> and <i>Medicago sativa</i> were selected from 17 water extracts to investigate how the application times of soil sprays affect the antioxidant enzymes and secondary metabolites in fruity and leafy vegetables at different growth stages. From 1 week after sowing (WAS) to 4 WAS, all applications increased the shoot fresh weight by 42–69% in cucumbers, 40–64% in tomatoes, 46–65% in kale and 42–63% in lettuce. These applications also increased the photosynthesis, flavonoids and antioxidative enzymes (ascorbate peroxide (APOD) and guaiacol peroxidase (GPOD)), which provided the plants with a balanced supply of nutrients essential for growth. In the real world, these results show that the use of natural extracts (<i>P. guajava</i> and <i>A. sativum</i>) can be a sustainable, eco-friendly alternative to synthetic fertilizers and pesticides, helping to improve crop yields and metabolism without harming the environment. This approach could reduce the reliance on chemical inputs and promote more sustainable agricultural practices, especially in controlled environments, like greenhouses, where crops like cucumbers and kale are grown.https://www.mdpi.com/2223-7747/14/2/237antioxidative enzymegrowth promotionplant extractssecondary metabolitesvegetables |
| spellingShingle | Ei Ei Hyun Hwa Park Yong In Kuk Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth Plants antioxidative enzyme growth promotion plant extracts secondary metabolites vegetables |
| title | Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth |
| title_full | Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth |
| title_fullStr | Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth |
| title_full_unstemmed | Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth |
| title_short | Growth Promotion and Secondary Metabolites of Vegetables by Spraying Soil with <i>Psidium guajava, Aloe vera, Allium sativum</i> and <i>Medicago sativa</i> Extracts at Various Stages of Growth |
| title_sort | growth promotion and secondary metabolites of vegetables by spraying soil with i psidium guajava aloe vera allium sativum i and i medicago sativa i extracts at various stages of growth |
| topic | antioxidative enzyme growth promotion plant extracts secondary metabolites vegetables |
| url | https://www.mdpi.com/2223-7747/14/2/237 |
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