91 resultados para levels of experience
Filtro por publicador
- Aberdeen University (2)
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- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (7)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (2)
- Archive of European Integration (2)
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- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (33)
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- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (2)
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- DigitalCommons@University of Nebraska - Lincoln (2)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (10)
- Duke University (1)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
- FUNDAJ - Fundação Joaquim Nabuco (1)
- INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES (IPEN) - Repositório Digital da Produção Técnico Científica - BibliotecaTerezine Arantes Ferra (2)
- Instituto Nacional de Saúde de Portugal (1)
- Instituto Politécnico do Porto, Portugal (4)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
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- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (4)
- Repositório da Produção Científica e Intelectual da Unicamp (5)
- Repositório digital da Fundação Getúlio Vargas - FGV (1)
- Repositório do Centro Hospitalar de Lisboa Central, EPE - Centro Hospitalar de Lisboa Central, EPE, Portugal (5)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (123)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- School of Medicine, Washington University, United States (4)
- Scielo España (2)
- Scielo Saúde Pública - SP (91)
- Scottish Institute for Research in Economics (SIRE) (SIRE), United Kingdom (2)
- Universidad Autónoma de Nuevo León, Mexico (1)
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- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (2)
- Universidade Federal do Pará (4)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (3)
- Université de Lausanne, Switzerland (86)
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- University of Canberra Research Repository - Australia (5)
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- University of Michigan (37)
- University of Queensland eSpace - Australia (80)
Resumo:
In Brazil, although the coffee plantations are predominantly grown under full sunlight, the use of agroforestry systems can lead to socioeconomic advantages, thus providing a favorable environment to the crop by promoting its sustainability as well as environmental preservation. However, there is a lack of information on physiological quality of the coffee seeds produced under different levels of solar radiation. Within this context, the objective of this study was to evaluate the influence of different levels of solar radiation and maturation stages on the physiological quality of coffee (Coffea arabica L.) seeds, cv. Acaiá Cerrado MG-1474. Three levels of solar radiation (plants grown under full sunlight; under plastic screens of 35% shading; and under plastic screens of 50% shading) and three maturation stages (cherry, greenish-yellow and green) were assessed. Physiological quality of seeds was assessed by using germination test, first count of germination, abnormal seedlings, dead seeds, and seedlings with open cotyledonary leaves. Electrophoretic analysis of isoenzymes catalase, esterase, superoxide dismutase and peroxidase was also performed. With the evolution of development the coffee seeds presents increases on physiological quality, and at its beginning the seeds show improvements on quality with the reduction of solar radiation.