Is silicon beneficial for cassava (Manihot esculenta Crantz)?

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationCatholique Universite de Louvainen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorInternational Institute of Tropical Agricultureen
cg.contributor.donorUniversité Catholique de Louvainen
cg.coverage.countryCongo, Democratic Republic of
cg.coverage.iso3166-alpha2CD
cg.coverage.regionAfrica
cg.creator.identifierZimin Li: 0000-0002-6377-2636
cg.creator.identifierbernard vanlauwe: 0000-0001-6016-6027
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1007/s11104-024-06506-zen
cg.identifier.iitathemeNATURAL RESOURCE MANAGEMENT
cg.isijournalISI Journalen
cg.issn0032-079Xen
cg.issue1-2en
cg.journalPlant and Soilen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.iitaAGRONOMYen
cg.subject.iitaCASSAVAen
cg.subject.iitaCLIMATE CHANGEen
cg.subject.iitaFOOD SECURITYen
cg.subject.iitaPLANT BREEDINGen
cg.subject.iitaPLANT PRODUCTIONen
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactPlatformNutrition, Health and Food Security
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume500en
dc.contributor.authorBarhebwa, F.en
dc.contributor.authorLi, Z.en
dc.contributor.authorBragad, C.en
dc.contributor.authorVanlauwe, B.en
dc.contributor.authorDelvaux, B.en
dc.date.accessioned2024-03-18T09:18:33Zen
dc.date.available2024-03-18T09:18:33Zen
dc.identifier.urihttps://hdl.handle.net/10568/140473
dc.titleIs silicon beneficial for cassava (Manihot esculenta Crantz)?en
dcterms.abstractBackground and aim Ranked among the world’s top ten crops, cassava (Manihot esculenta Crantz) is the main staple food in sub-Saharan Africa. Its production is strongly limited by biotic and abiotic stresses, which proved to be mitigated in other plants by silicon (Si) uptake. The role of Si is unknown in cassava. Yet it has genes encoding specific aquaporins involved in plant water and Si influxes in numbers similar to those of some Si accumulating monocots. Methods Cassava Si and nutrient status were studied in four sites in South-Kivu, Democratic Republic of Congo, differing in altitude, climate and soil desilication stage. Out of 720 farms, 360 plots were selected for agronomic monitoring, of which 40 for foliar/topsoil analysis using germanium to trace Si. Results Regardless of soil type, Si concentration in cassava leaves ranged from 2 to 14 g kg−1 while root yield varied from 0.5 to 18 t ha−1 yr−1. Silicon accumulation formed fine-sized phytoliths of different morphotypes. Structural equation modelling showed that leaf Si mineralomass was an important predictor of yield, with a direct contribution of 45%. Silicon accumulation mitigated the altitude-mediated incidence of cassava mosaic disease (25%), notably through enhancing micronutrient uptake, while it could contribute to the plant tolerance to soil acidity. Conclusion Silicon accumulates substantially in cassava leaves. Our data highlight the potential role of Si in cassava production through direct and indirect effects by alleviating biotic and abiotic stresses. The function of Si in cassava thus deserves more attention than given until now.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.available2024-02-16
dcterms.bibliographicCitationBarhebwa, F., Li, Z., Bragard, C., Vanlauwe, B. & Delvaux, B. (2024). Is silicon beneficial for cassava (Manihot esculenta Crantz)?. Plant and Soil, 1-21.en
dcterms.extent1-21en
dcterms.issued2024
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringer Science and Business Media LLCen
dcterms.subjectcassavaen
dcterms.subjectmanihot esculentaen
dcterms.subjectclimate changeen
dcterms.subjectsiliconen
dcterms.subjectplant virusesen
dcterms.typeJournal Article

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