Silicon fertilization increases gas-exchange and biomass by silicophytolith deposition in the leaves of contrasting drought-tolerant sugarcane cultivars under well-watered conditions

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorAgência Paulista de Tecnologia Dos Agronegócios (APTA)-
Autor(es): dc.contributorUniversidad Nacional de Mar del Plata-CONICET-
Autor(es): dc.contributorFaculdade de Tecnologia de Piracicaba-
Autor(es): dc.contributorCentro de Asociación Simple CIC PBA-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCamargo, Mônica Sartori-
Autor(es): dc.creatorFernández Honaine, Mariana-
Autor(es): dc.creatorOsterrieth, Margarita-
Autor(es): dc.creatorBozza, Natália Ganzaroli-
Autor(es): dc.creatorda Mota Silva, Vicente [UNESP]-
Autor(es): dc.creatorBenvenuto, Maria Laura-
Autor(es): dc.creatorde Almeida Silva, Marcelo [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:10:28Z-
Data de disponibilização: dc.date.available2022-08-04T22:10:28Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11104-021-05063-z-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221981-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221981-
Descrição: dc.descriptionPurpose: Silicon (Si) fertilization provides benefits to sugarcane. However, information remain scarce about the relationship between Si fertilization, gas exchange responses, biomass and silicophytolith accumulation in contrasting drought tolerant sugarcane cultivars under well-watered conditions Methods: Sugarcane cultivars (drought-tolerant and drought-sensitive) were grown in pots containing soil with low available Si and were treated (at rates equivalent to 0, 250, 500, 750, and 1000 kg ha−1 Si) with Si as silicate. The silicophytolith contents, morphotype descriptions, Si concentrations and gas exchange were evaluated in the top visible dewlap leaves. Stalk length and stalk biomass were also evaluated. Results: The silicophytolith, Si contents, net CO2 assimilation rate (A), plant transpiration (E), stomatal conductance (gs) and electron transport rate (ETR) of leaves and fresh biomass and length of stalks increased linearly as functions of the Si application rate, independent of cultivar. RB86-7515 showed the highest stalk length, fresh stalk and green leaf biomass, relative water content, and water potential, while RB85-5536 showed superior values for A, E, gs, and ETR. Conclusions: Si fertilization improved photosynthesis, transpiration, stalk length, and stalk biomass production in sugarcane. The highest silicophytolith content was reflected in a diversity of silicified cells, which may favor a higher photosynthesis and biomass. The increase of silicification in stomata complexes and trichomes with Si may be associated to a higher Si availability and transpiration. Contrasting drought-tolerant cultivars showed similar silicification and gas exchange responses with Si. Considering these benefits, Si should be included in the fertilization program of sugarcane.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionPólo Centro Sul Agência Paulista de Tecnologia Dos Agronegócios (APTA)-
Descrição: dc.descriptionInstituto de Investigaciones Marinas Y Costeras (IIMyC) Facultad de Ciencias Exactas Y Naturales Universidad Nacional de Mar del Plata-CONICET-
Descrição: dc.descriptionFaculdade de Tecnologia de Piracicaba-
Descrição: dc.descriptionInstituto de Investigaciones en Producción Sanidad Y Ambiente (IIPROSAM). Consejo Nacional de Investigaciones Científicas Y Técnicas Universidad Nacional de Mar del Plata Centro de Asociación Simple CIC PBA, Funes 3250-
Descrição: dc.descriptionLaboratory of Ecophysiology Applied To Agriculture (LECA) Department of Crop Production School of Agricultural Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionLaboratory of Ecophysiology Applied To Agriculture (LECA) Department of Crop Production School of Agricultural Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2018/05843-0-
Formato: dc.format581-595-
Idioma: dc.languageen-
Relação: dc.relationPlant and Soil-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAbsorption-
Palavras-chave: dc.subjectPlant nutrition-
Palavras-chave: dc.subjectSaccharum spp-
Palavras-chave: dc.subjectSilica-
Palavras-chave: dc.subjectSilicate-
Palavras-chave: dc.subjectSoil-
Título: dc.titleSilicon fertilization increases gas-exchange and biomass by silicophytolith deposition in the leaves of contrasting drought-tolerant sugarcane cultivars under well-watered conditions-
Tipo de arquivo: dc.typelivro digital-
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