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Provedor de dados:  PAB
País:  Brazil
Título:  Phosphorus forms in leaves and their relationships with must composition and yield in grapevines
Autores:  Piccin,Rogério
Couto,Rafael da Rosa
Bellinaso,Roque Júnior Sartori
Gatiboni,Luciano Colpo
Conti,Lessandro De
Rodrigues,Lucas Antonio Telles
Michelon,Luiza Somavilla
Kulmann,Matheus Severo de Souza
Data:  2017-05-01
Ano:  2017
Palavras-chave:  Vitis vinifera
Chemical fractionation of P in the tissue
Grape production
Must analysis
Phosphorus fertilization.
Resumo:  Abstract: The objective of this work was to evaluate phosphorus forms in grape leaves and their relationships with must composition and yield in grapevines grown in a Typic Hapludalf with different available P contents. Two experiments were carried out with Vitis viniferacultivars, one with 'Tannat' and the other with 'Cabernet Franc' grapes. Experiment 1 consisted of two vineyards of 'Tannat', with the following P content in the soil: V1, 11.8 mg kg-1 P; and V2, 34.6 mg kg-1 P. Experiment 2 consisted of two vineyards of 'Cabernet Franc', with the following P content in the soil: V1, 16.0 mg kg-1 P; and V2, 37.0 mg kg-1 P. Leaves were collected at flowering (FL) and veraison (V), and, after their preparation, P forms were evaluated. Yield and must composition were assessed. The highest yield was observed in V2 of experiment 1 and in V2 of experiment 2. Total P content and P forms in leaves at FL and V have no relationship with yield parameters; however, total P content in leaves has a relationship with anthocyanin content in the must of 'Tannat' grapevines. Therefore, P fractionation in leaves predicts neither grapevine yield nor must composition.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira
Relação:  10.1590/s0100-204x2017000500005
Formato:  text/html
Fonte:  Pesquisa Agropecuária Brasileira v.52 n.5 2017
Direitos:  info:eu-repo/semantics/openAccess

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