Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture
Weeds are responsible for major crop losses worldwide but can provide beneficial agroecosystem services. This study aimed to elucidate how arbuscular mycorrhizal fungi (AMF) in weeds respond to host identity and conservation agricultural practices. The study was carried out at two locations in South...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/130284 |
| _version_ | 1855541776448749568 |
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| author | Mhlanga, Blessing Ercoli, Laura Piazza, Gaia Thierfelder, Christian L. Pellegrino, Elisa |
| author_browse | Ercoli, Laura Mhlanga, Blessing Pellegrino, Elisa Piazza, Gaia Thierfelder, Christian L. |
| author_facet | Mhlanga, Blessing Ercoli, Laura Piazza, Gaia Thierfelder, Christian L. Pellegrino, Elisa |
| author_sort | Mhlanga, Blessing |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Weeds are responsible for major crop losses worldwide but can provide beneficial agroecosystem services. This study aimed to elucidate how arbuscular mycorrhizal fungi (AMF) in weeds respond to host identity and conservation agricultural practices. The study was carried out at two locations in Southern Africa during off-season and in-season maize cultivation. Off-season AMF root colonisation, diversity indices and community composition significantly differed among weed species at both locations. Glomus sp. VTX00280 explains most of the AMF community differences. In-season, implementation of conventional tillage with mulching alone (CT + M) or together with crop rotation (CT + M + R) resulted in a 20% increase in AMF colonisation of the constantly occurring weed species, Bidens pilosa (BIDPI) and Richardia scabra (RCHSC), compared with conventional tillage plus rotations (CT + R). The diversity of AMF was highest under no-tillage plus mulching (NT + M). Off-season and in-season AMF structures of both BIDPI and RCHSC were not related, but 39% of the taxa were shared. Structural equation modelling showed a significant effect of the cropping system on weed AMF diversity parameters and weed and maize root colonisation, but no significant influence of weed root AMF traits and maize colonisation was detected on maize yield. This may be explained by the improvement in weed competitive ability, which may have offset the AMF-mediated benefits on yield. Our findings highlight that implementing M and CR to CT and NT positively affected weed AMF colonisation and diversity. The similarity between the off-season and in-season AMF composition of weeds supports the fact that weeds functionally host AMF during the non-crop period. |
| format | Journal Article |
| id | CGSpace130284 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1302842025-11-06T13:10:03Z Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture Mhlanga, Blessing Ercoli, Laura Piazza, Gaia Thierfelder, Christian L. Pellegrino, Elisa agroecosystems zero tillage mulching crop rotation conservation agriculture maize yields Weeds are responsible for major crop losses worldwide but can provide beneficial agroecosystem services. This study aimed to elucidate how arbuscular mycorrhizal fungi (AMF) in weeds respond to host identity and conservation agricultural practices. The study was carried out at two locations in Southern Africa during off-season and in-season maize cultivation. Off-season AMF root colonisation, diversity indices and community composition significantly differed among weed species at both locations. Glomus sp. VTX00280 explains most of the AMF community differences. In-season, implementation of conventional tillage with mulching alone (CT + M) or together with crop rotation (CT + M + R) resulted in a 20% increase in AMF colonisation of the constantly occurring weed species, Bidens pilosa (BIDPI) and Richardia scabra (RCHSC), compared with conventional tillage plus rotations (CT + R). The diversity of AMF was highest under no-tillage plus mulching (NT + M). Off-season and in-season AMF structures of both BIDPI and RCHSC were not related, but 39% of the taxa were shared. Structural equation modelling showed a significant effect of the cropping system on weed AMF diversity parameters and weed and maize root colonisation, but no significant influence of weed root AMF traits and maize colonisation was detected on maize yield. This may be explained by the improvement in weed competitive ability, which may have offset the AMF-mediated benefits on yield. Our findings highlight that implementing M and CR to CT and NT positively affected weed AMF colonisation and diversity. The similarity between the off-season and in-season AMF composition of weeds supports the fact that weeds functionally host AMF during the non-crop period. 2022-11 2023-05-08T20:09:34Z 2023-05-08T20:09:34Z Journal Article https://hdl.handle.net/10568/130284 en Open Access application/pdf Springer Mhlanga, B., Ercoli, L., Piazza, G., Thierfelder, C., & Pellegrino, E. (2022). Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture. Biology and Fertility of Soils, 58(8), 917–935. https://doi.org/10.1007/s00374-022-01678-1 |
| spellingShingle | agroecosystems zero tillage mulching crop rotation conservation agriculture maize yields Mhlanga, Blessing Ercoli, Laura Piazza, Gaia Thierfelder, Christian L. Pellegrino, Elisa Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title | Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title_full | Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title_fullStr | Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title_full_unstemmed | Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title_short | Occurrence and diversity of arbuscular mycorrhizal fungi colonising of‑season and in‑season weeds and their relationship with maize yield under conservation agriculture |
| title_sort | occurrence and diversity of arbuscular mycorrhizal fungi colonising of season and in season weeds and their relationship with maize yield under conservation agriculture |
| topic | agroecosystems zero tillage mulching crop rotation conservation agriculture maize yields |
| url | https://hdl.handle.net/10568/130284 |
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