Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale
Abstract Autotoxicity is a type of intraspecific allelopathy in which compounds released by a plant inhibit the growth of other plants of the same species. In alfalfa (Medicago sativa L.), an herbaceous perennial legume widely used in hay and pasture production, autotoxicity is associated with re‐es...
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Wiley
2025-06-01
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| Series: | Grassland Research |
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| Online Access: | https://doi.org/10.1002/glr2.70012 |
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| author | Paige Baisley Kimberly A. Cassida |
| author_facet | Paige Baisley Kimberly A. Cassida |
| author_sort | Paige Baisley |
| collection | DOAJ |
| description | Abstract Autotoxicity is a type of intraspecific allelopathy in which compounds released by a plant inhibit the growth of other plants of the same species. In alfalfa (Medicago sativa L.), an herbaceous perennial legume widely used in hay and pasture production, autotoxicity is associated with re‐establishment failure, reduced yields, and decreased persistence. Several compounds in the phenolic and saponin groups are suspected to contribute to alfalfa autotoxicity, but the exact compounds, ratio of compounds, and concentration of compounds necessary for autotoxicity are not fully defined. Symptoms of autotoxicity, including decreased germination and inhibited root elongation, are consistently observed in laboratory bioassays, but evidence to consistently implicate autotoxicity in poor alfalfa growth at field scale is lacking. This review article presents three criteria that address the production and accumulation of autotoxic compounds in alfalfa and distinguish symptoms of autotoxicity from other inhibitory factors in the field. These criteria provide a useful framework to highlight both competencies and gaps in our current understanding of alfalfa autotoxicity. |
| format | Article |
| id | doaj-art-9900d3c882264515b6ebf69fe7032af7 |
| institution | DOAJ |
| issn | 2097-051X 2770-1743 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Grassland Research |
| spelling | doaj-art-9900d3c882264515b6ebf69fe7032af72025-08-20T03:14:58ZengWileyGrassland Research2097-051X2770-17432025-06-014215116010.1002/glr2.70012Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scalePaige Baisley0Kimberly A. Cassida1Department of Plant, Soil, and Microbial Sciences Michigan State University East Lansing Michigan USADepartment of Plant, Soil, and Microbial Sciences Michigan State University East Lansing Michigan USAAbstract Autotoxicity is a type of intraspecific allelopathy in which compounds released by a plant inhibit the growth of other plants of the same species. In alfalfa (Medicago sativa L.), an herbaceous perennial legume widely used in hay and pasture production, autotoxicity is associated with re‐establishment failure, reduced yields, and decreased persistence. Several compounds in the phenolic and saponin groups are suspected to contribute to alfalfa autotoxicity, but the exact compounds, ratio of compounds, and concentration of compounds necessary for autotoxicity are not fully defined. Symptoms of autotoxicity, including decreased germination and inhibited root elongation, are consistently observed in laboratory bioassays, but evidence to consistently implicate autotoxicity in poor alfalfa growth at field scale is lacking. This review article presents three criteria that address the production and accumulation of autotoxic compounds in alfalfa and distinguish symptoms of autotoxicity from other inhibitory factors in the field. These criteria provide a useful framework to highlight both competencies and gaps in our current understanding of alfalfa autotoxicity.https://doi.org/10.1002/glr2.70012alfalfaallelopathyautotoxicity |
| spellingShingle | Paige Baisley Kimberly A. Cassida Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale Grassland Research alfalfa allelopathy autotoxicity |
| title | Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale |
| title_full | Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale |
| title_fullStr | Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale |
| title_full_unstemmed | Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale |
| title_short | Overview of autotoxicity in alfalfa (Medicago sativa L.): Identifying gaps between laboratory findings and demonstration at field scale |
| title_sort | overview of autotoxicity in alfalfa medicago sativa l identifying gaps between laboratory findings and demonstration at field scale |
| topic | alfalfa allelopathy autotoxicity |
| url | https://doi.org/10.1002/glr2.70012 |
| work_keys_str_mv | AT paigebaisley overviewofautotoxicityinalfalfamedicagosativalidentifyinggapsbetweenlaboratoryfindingsanddemonstrationatfieldscale AT kimberlyacassida overviewofautotoxicityinalfalfamedicagosativalidentifyinggapsbetweenlaboratoryfindingsanddemonstrationatfieldscale |