Water stress and warming impact nutrient use efficiency of Mombasa grass (Megathyrsus maximus) in tropical conditions

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorSão Paulo Agribusiness Technology Agency (APTA)-
Autor(es): dc.creatorOlivera Viciedo, Dilier [UNESP]-
Autor(es): dc.creatorde Mello Prado, Renato [UNESP]-
Autor(es): dc.creatorMartinez, Carlos A.-
Autor(es): dc.creatorHabermann, Eduardo-
Autor(es): dc.creatorBranco, Roberto Botelho Ferraz-
Autor(es): dc.creatorde Cássia Piccolo, Marisa-
Autor(es): dc.creatorCalero Hurtado, Alexander [UNESP]-
Autor(es): dc.creatorPeña Calzada, Kolima [UNESP]-
Autor(es): dc.creatorLata Tenesaca, Luis F. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:43:53Z-
Data de disponibilização: dc.date.available2022-02-22T00:43:53Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/jac.12452-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205267-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205267-
Descrição: dc.descriptionTemperature and other abiotic factors, such water and nutrient availability, play an important role for plants in response to the changing environments. At this regard, both warming and drought might affect the nutrient use efficiency (NUE) and growth of Megathyrsus maximus a C4 forage grass of high interest for cattle feeding. However, the nutrient requirements of this species under climate change are unknown. Therefore, we aimed to evaluate the individual and combined effects of two levels of temperature: ambient and elevated temperature (2°C above ambient temperature), and two levels of soil water availability: irrigated plants and non-irrigated plants on accumulation of leaf nutrients, NUE and biomass production of M. maximus. Temperature control was performed by a temperature free-air-controlled enhancement (T-FACE) system under field conditions. In general, we observed that warming under well-irrigated conditions increased the leaf accumulation of most nutrients, improving the NUE of N, P, K, Ca, Mg, Cu, Mn and Zn. Plant growth was also enhanced under warming effects, with higher leaf dry mass accumulation and root development. Meanwhile, drought decreased NUE of K, Ca, B and leaf dry biomass, while root growth was stimulated. The combined effects of warming and drought on nutrient accumulation, NUE and plant growth tended to be greater than the individual effects expected from a single factor; thus, warming mitigated the negative impacts of individual drought. In summary, our findings suggest that warming and drought, both as individual and combined factors, will change the nutrient requirements of M. maximus in tropical ecosystems.-
Descrição: dc.descriptionFaculty of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Biology Ribeirão Preto (FFCLRP) University of São Paulo-
Descrição: dc.descriptionSão Paulo Agribusiness Technology Agency (APTA)-
Descrição: dc.descriptionCenter of Nuclear Energy in Agriculture University of São Paulo-
Descrição: dc.descriptionFaculty of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)-
Formato: dc.format128-138-
Idioma: dc.languageen-
Relação: dc.relationJournal of Agronomy and Crop Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectC4 pasture-
Palavras-chave: dc.subjectelevated temperature-
Palavras-chave: dc.subjectforage-
Palavras-chave: dc.subjectglobal climate change-
Palavras-chave: dc.subjectnutrient uptake-
Palavras-chave: dc.subjectroot growth-
Título: dc.titleWater stress and warming impact nutrient use efficiency of Mombasa grass (Megathyrsus maximus) in tropical conditions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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