Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca
Saved in:
| Main Author: | |
|---|---|
| Publication Date: | 2020 |
| Format: | Master thesis |
| Language: | por |
| Source: | Repositório Institucional da UPF |
| Download full: | https://repositorio.upf.br/handle/123456789/9307 |
Summary: | Mechanisms of plant adaptation to low availability of phosphorus (P) are related to the nutritional efficiency of some agricultural crops. However, it is not yet known how this varies in the phenological cycle and what are the important mechanisms for the nutritional efficiency of this nutrient in white oats. This study aimed to verify what are the mechanisms that influence the nutritional efficiency of phosphorus (NEP) and how it varies between some stages of the phenological cycle of this culture. The experiment was carried out in the field, in a humic dystrophic Red Latosol, in Passo Fundo, RS, in 2018. The experimental design was in randomized blocks. The white oat cultivars were URS Taura and UPFPS Farroupilha. The soil and plant samples used to evaluate the mechanisms and NEP were obtained from plots with low, medium, and high P availability. The mechanisms (mycorrhizal colonization, acid phosphatase, root morphology) and the types of nutritional efficiencies (rooting, acquisition, translocation, and use) were evaluated in tillering and anthesis. Nutritional efficiencies were also evaluated in physiological maturation. In tillering, the mechanism that is associated with acquisition efficiency was the root morphology (specific surface area, volume, and the number of root tips) beyond to acid phosphatase. In the anthesis, rooting efficiency is also associated with the same root morphological attributes (except the number of root tips). At this stage, although NEP is higher to tillering and physiological maturation. The colonization of native mycorrhizal fungi is not associated with any type of efficiencies, regardless of the assessed stage. The gene expression of P transporters is not conclusive, new primers and conditions will need to be tested. |
| _version_ | 1871607650270052352 |
|---|---|
| author | Dal’Maso, Vanessa |
| author_browse | Dal’Maso, Vanessa |
| author_facet | Dal’Maso, Vanessa |
| author_role | author |
| collection | Repositório Institucional da UPF |
| dc.contributor.author.fl_str_mv | Dal’Maso, Vanessa |
| dc.contributor.none.fl_str_mv | Escosteguy, Pedro Alexandre Varella http://lattes.cnpq.br/3761510596068261 http://lattes.cnpq.br/9644447290770083 Didoné, Dielli Aparecida |
| dc.date.none.fl_str_mv | 2020-03-27 2025-06-20T16:42:08Z |
| dc.format.none.fl_str_mv | application/pdf application/pdf |
| dc.identifier.uri.fl_str_mv | DAL’MASO, Vanessa. Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca. 2020. 118 f. Dissertação (Mestrado em Agronomia) – Universidade de Passo Fundo, Passo Fundo, RS, 2020. https://repositorio.upf.br/handle/123456789/9307 |
| dc.language.iso.fl_str_mv | por |
| dc.publisher.none.fl_str_mv | Universidade de Passo Fundo Faculdade de Agronomia e Medicina Veterinária – FAMV Brasil UPF Programa de Pós-Graduação em Agronomia |
| dc.rights.driver.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UPF instname:Universidade de Passo Fundo (UPF) instacron:UPF |
| dc.subject.por.fl_str_mv | Eficiência de uso de fósforo Morfologia de raiz Fosfatase ácida Micorrizas Transportador de fósforo Avena sativa CIENCIAS AGRARIAS::AGRONOMIA |
| dc.title.none.fl_str_mv | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/masterThesis |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | Mechanisms of plant adaptation to low availability of phosphorus (P) are related to the nutritional efficiency of some agricultural crops. However, it is not yet known how this varies in the phenological cycle and what are the important mechanisms for the nutritional efficiency of this nutrient in white oats. This study aimed to verify what are the mechanisms that influence the nutritional efficiency of phosphorus (NEP) and how it varies between some stages of the phenological cycle of this culture. The experiment was carried out in the field, in a humic dystrophic Red Latosol, in Passo Fundo, RS, in 2018. The experimental design was in randomized blocks. The white oat cultivars were URS Taura and UPFPS Farroupilha. The soil and plant samples used to evaluate the mechanisms and NEP were obtained from plots with low, medium, and high P availability. The mechanisms (mycorrhizal colonization, acid phosphatase, root morphology) and the types of nutritional efficiencies (rooting, acquisition, translocation, and use) were evaluated in tillering and anthesis. Nutritional efficiencies were also evaluated in physiological maturation. In tillering, the mechanism that is associated with acquisition efficiency was the root morphology (specific surface area, volume, and the number of root tips) beyond to acid phosphatase. In the anthesis, rooting efficiency is also associated with the same root morphological attributes (except the number of root tips). At this stage, although NEP is higher to tillering and physiological maturation. The colonization of native mycorrhizal fungi is not associated with any type of efficiencies, regardless of the assessed stage. The gene expression of P transporters is not conclusive, new primers and conditions will need to be tested. |
| eu_rights_str_mv | openAccess |
| format | masterThesis |
| id | UPF_fbe8a3f16af5e7d31bd3717bf599fa3e |
| identifier_str_mv | DAL’MASO, Vanessa. Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca. 2020. 118 f. Dissertação (Mestrado em Agronomia) – Universidade de Passo Fundo, Passo Fundo, RS, 2020. |
| instacron_str | UPF |
| institution | UPF |
| instname_str | Universidade de Passo Fundo (UPF) |
| language | por |
| network_acronym_str | UPF |
| network_name_str | Repositório Institucional da UPF |
| oai_identifier_str | oai:repositorio.upf.br:123456789/9307 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| publisher.none.fl_str_mv | Universidade de Passo Fundo Faculdade de Agronomia e Medicina Veterinária – FAMV Brasil UPF Programa de Pós-Graduação em Agronomia |
| reponame_str | Repositório Institucional da UPF |
| repository.mail.fl_str_mv | jucelei@upf.br||biblio@upf.br |
| repository.name.fl_str_mv | Repositório Institucional da UPF - Universidade de Passo Fundo (UPF) |
| repository_id_str | 1610 |
| spelling | Eficiência nutricional de fósforo, em estádios fenológico de aveia-brancaEficiência de uso de fósforoMorfologia de raizFosfatase ácidaMicorrizasTransportador de fósforoAvena sativaCIENCIAS AGRARIAS::AGRONOMIAMechanisms of plant adaptation to low availability of phosphorus (P) are related to the nutritional efficiency of some agricultural crops. However, it is not yet known how this varies in the phenological cycle and what are the important mechanisms for the nutritional efficiency of this nutrient in white oats. This study aimed to verify what are the mechanisms that influence the nutritional efficiency of phosphorus (NEP) and how it varies between some stages of the phenological cycle of this culture. The experiment was carried out in the field, in a humic dystrophic Red Latosol, in Passo Fundo, RS, in 2018. The experimental design was in randomized blocks. The white oat cultivars were URS Taura and UPFPS Farroupilha. The soil and plant samples used to evaluate the mechanisms and NEP were obtained from plots with low, medium, and high P availability. The mechanisms (mycorrhizal colonization, acid phosphatase, root morphology) and the types of nutritional efficiencies (rooting, acquisition, translocation, and use) were evaluated in tillering and anthesis. Nutritional efficiencies were also evaluated in physiological maturation. In tillering, the mechanism that is associated with acquisition efficiency was the root morphology (specific surface area, volume, and the number of root tips) beyond to acid phosphatase. In the anthesis, rooting efficiency is also associated with the same root morphological attributes (except the number of root tips). At this stage, although NEP is higher to tillering and physiological maturation. The colonization of native mycorrhizal fungi is not associated with any type of efficiencies, regardless of the assessed stage. The gene expression of P transporters is not conclusive, new primers and conditions will need to be tested.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESMecanismos de adaptação das plantas a baixa disponibilidade de fósforo (P) têm relação com a eficiência nutricional de algumas culturas agrícolas. No entanto, ainda não se sabe como isso varia no ciclo fenológico e quais são os mecanismos importantes para a eficiência nutricional desse nutriente em aveia-branca. Com esse estudo, objetivou-se verificar quais são os mecanismos que influenciam a eficiência nutricional de fósforo (ENP) e como isso varia entre alguns estádios do ciclo fenológico dessa cultura. O experimento foi realizado a campo, em um Latossolo Vermelho distrófico húmico, em Passo Fundo, RS, em 2018. O delineamento experimental foi em blocos ao acaso. As cultivares de aveia-branca foram a URS Taura e a UPFPS Farroupilha. As amostras de solo e plantas utilizadas para avaliar os mecanismos e a ENP foram obtidas de parcelas com disponibilidades de P baixa, média e alta. Os mecanismos (colonização micorrízica, fosfatase ácida, morfologia de raiz) e os tipos de eficiências nutricionais (enraizamento, aquisição, translocação e uso) foram avaliados no perfilhamento e na antese. As eficiências nutricionais também foram avaliadas na maturação fisiológica. No perfilhamento, o mecanismo que está associado a eficiência de aquisição foi a morfologia de raiz (área superficial específica, volume e número de pontas das raízes), além da fosfatase ácida. Na antese, a eficiência de enraizamento, também está associada aos mesmos atributos morfológicos de raiz (exceto o número de pontas das raízes). A colonização de fungos micorrízicos nativos não está associada as eficiências avaliadas, independente do estádio fenológico. A expressão gênica dos transportadores de P ainda deve ser confirmada, com novos primers e condições de teste.Universidade de Passo FundoFaculdade de Agronomia e Medicina Veterinária – FAMVBrasilUPFPrograma de Pós-Graduação em AgronomiaEscosteguy, Pedro Alexandre Varellahttp://lattes.cnpq.br/3761510596068261http://lattes.cnpq.br/9644447290770083Didoné, Dielli AparecidaDal’Maso, Vanessa2025-06-20T16:42:08Z2020-03-27info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfapplication/pdfDAL’MASO, Vanessa. Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca. 2020. 118 f. Dissertação (Mestrado em Agronomia) – Universidade de Passo Fundo, Passo Fundo, RS, 2020.https://repositorio.upf.br/handle/123456789/9307porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UPFinstname:Universidade de Passo Fundo (UPF)instacron:UPF2025-12-30T19:44:24Zoai:repositorio.upf.br:123456789/9307Repositório InstitucionalPRIhttp://repositorio.upf.br/oai/requestjucelei@upf.br||biblio@upf.bropendoar:16102025-12-30T19:44:24Repositório Institucional da UPF - Universidade de Passo Fundo (UPF) |
| spellingShingle | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca Dal’Maso, Vanessa Eficiência de uso de fósforo Morfologia de raiz Fosfatase ácida Micorrizas Transportador de fósforo Avena sativa CIENCIAS AGRARIAS::AGRONOMIA |
| status_str | publishedVersion |
| title | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| title_full | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| title_fullStr | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| title_full_unstemmed | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| title_short | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| title_sort | Eficiência nutricional de fósforo, em estádios fenológico de aveia-branca |
| topic | Eficiência de uso de fósforo Morfologia de raiz Fosfatase ácida Micorrizas Transportador de fósforo Avena sativa CIENCIAS AGRARIAS::AGRONOMIA |
| url | https://repositorio.upf.br/handle/123456789/9307 |