Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings
Allelopathy plays a major role in agricultural production, influencing plant protection, crop yield, and crop rotation systems. This study investigated the effects of root exudates on 3105c alfalfa (<i>Medicago sativa</i>) seeds and seedlings to identify crops with strong and weak allelo...
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MDPI AG
2025-04-01
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| Series: | Life |
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| Online Access: | https://www.mdpi.com/2075-1729/15/4/600 |
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| author | Xiaoyan Zhang Shangli Shi Xiaolong Li Changning Li Qian Li |
| author_facet | Xiaoyan Zhang Shangli Shi Xiaolong Li Changning Li Qian Li |
| author_sort | Xiaoyan Zhang |
| collection | DOAJ |
| description | Allelopathy plays a major role in agricultural production, influencing plant protection, crop yield, and crop rotation systems. This study investigated the effects of root exudates on 3105c alfalfa (<i>Medicago sativa</i>) seeds and seedlings to identify crops with strong and weak allelopathic potential. The results revealed that corn (<i>Zea mays</i> L.) (T1) exhibited the strongest allelopathic effects, whereas soybean (<i>Glycine max</i> (Linn.) Merr.) (T10) exhibited the weakest effects. T1 promoted seed germination by increasing radicle length and the simple vitality index. Both T1 and T10 promoted 3105c seedling growth and enhanced antioxidant capacity, albeit through different mechanisms. T1 primarily increased antioxidant capacity by elevating ascorbate and dehydroascorbate levels while reducing malondialdehyde content. In contrast, T10 enhanced antioxidant capacity by increasing soluble sugar and protein levels via hydroxyl free radical inhibition. These findings demonstrate that the allelopathic properties of corn effectively promote alfalfa growth by enhancing seed germination and improving physiological stress resistance. |
| format | Article |
| id | doaj-art-91f8beab048a4518aff31b6249e82096 |
| institution | OA Journals |
| issn | 2075-1729 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
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| series | Life |
| spelling | doaj-art-91f8beab048a4518aff31b6249e820962025-08-20T02:18:14ZengMDPI AGLife2075-17292025-04-0115460010.3390/life15040600Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) SeedlingsXiaoyan Zhang0Shangli Shi1Xiaolong Li2Changning Li3Qian Li4College of Agriculture and Bioengineering, Longdong University, Qingyang 745000, ChinaKey Laboratory of Grassland Ecosytem (Ministry of Education), College of Grassland Science, Lanzhou 730070, ChinaCollege of Agriculture and Bioengineering, Longdong University, Qingyang 745000, ChinaKey Laboratory of Grassland Ecosytem (Ministry of Education), College of Grassland Science, Lanzhou 730070, ChinaCollege of Agriculture and Bioengineering, Longdong University, Qingyang 745000, ChinaAllelopathy plays a major role in agricultural production, influencing plant protection, crop yield, and crop rotation systems. This study investigated the effects of root exudates on 3105c alfalfa (<i>Medicago sativa</i>) seeds and seedlings to identify crops with strong and weak allelopathic potential. The results revealed that corn (<i>Zea mays</i> L.) (T1) exhibited the strongest allelopathic effects, whereas soybean (<i>Glycine max</i> (Linn.) Merr.) (T10) exhibited the weakest effects. T1 promoted seed germination by increasing radicle length and the simple vitality index. Both T1 and T10 promoted 3105c seedling growth and enhanced antioxidant capacity, albeit through different mechanisms. T1 primarily increased antioxidant capacity by elevating ascorbate and dehydroascorbate levels while reducing malondialdehyde content. In contrast, T10 enhanced antioxidant capacity by increasing soluble sugar and protein levels via hydroxyl free radical inhibition. These findings demonstrate that the allelopathic properties of corn effectively promote alfalfa growth by enhancing seed germination and improving physiological stress resistance.https://www.mdpi.com/2075-1729/15/4/600allelopathyalfalfaresistant physiologyroot exudatesseed germination |
| spellingShingle | Xiaoyan Zhang Shangli Shi Xiaolong Li Changning Li Qian Li Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings Life allelopathy alfalfa resistant physiology root exudates seed germination |
| title | Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings |
| title_full | Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings |
| title_fullStr | Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings |
| title_full_unstemmed | Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings |
| title_short | Potential Effect of Root Exudates from Ten Crops on Promoting Stress Tolerance in Alfalfa (<i>Medicago sativa</i>) Seedlings |
| title_sort | potential effect of root exudates from ten crops on promoting stress tolerance in alfalfa i medicago sativa i seedlings |
| topic | allelopathy alfalfa resistant physiology root exudates seed germination |
| url | https://www.mdpi.com/2075-1729/15/4/600 |
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