Occurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture

dc.creatorMhlanga, B.
dc.creatorErcoli, L.
dc.creatorPiazza, G.
dc.creatorThierfelder, C.
dc.creatorPellegrino, E.
dc.date2022-11-18T01:25:11Z
dc.date2022-11-18T01:25:11Z
dc.date2022
dc.date.accessioned2023-07-17T20:09:42Z
dc.date.available2023-07-17T20:09:42Z
dc.identifierhttps://hdl.handle.net/10883/22260
dc.identifier10.1007/s00374-022-01678-1
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7514015
dc.descriptionWeeds 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.
dc.description917-935
dc.languageEnglish
dc.publisherSpringer
dc.relationhttps://link.springer.com/article/10.1007/s00374-022-01678-1#Sec22
dc.relationClimate adaptation & mitigation
dc.relationDiversification in East and Southern Africa
dc.relationResilient Agrifood Systems
dc.relationScuola Superiore Sant'Anna
dc.relationhttps://hdl.handle.net/10568/130284
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source58
dc.source0178-2762
dc.sourceBiology and Fertility of Soils
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectAgroecosystem Services
dc.subjectNo-Tillage
dc.subjectHost Specificity
dc.subjectAGROECOSYSTEMS
dc.subjectZERO TILLAGE
dc.subjectMULCHING
dc.subjectCROP ROTATION
dc.subjectCONSERVATION AGRICULTURE
dc.subjectMAIZE
dc.subjectYIELDS
dc.subjectROOT COLONIZATION
dc.subjectSustainable Agrifood Systems
dc.titleOccurrence and diversity of arbuscular mycorrhizal fungi colonising off-season and in-season weeds and their relationship with maize yield under conservation agriculture
dc.typeArticle
dc.typePublished Version
dc.coverageBerlin (Germany)


Este ítem pertenece a la siguiente institución