02308naa a2200337 a 450000100080000000500110000800800410001910000150006024501020007526000090017750001310018652011550031765000160147265000190148865300250150765300220153265300460155465300420160065300180164265300290166065300220168970000200171170000240173170000200175570000170177570000240179270000210181670000250183770000170186277300910187920715322017-06-26       2017    bl uuuu     u00u1 u    #d1 aPICCIN, R.  aPhosphorus forms in leaves and their relationships with must composition and yield in grapevines.  c2017  aTítulo em português: Formas de fósforo em folhas e suas relações com a composição  do mosto e a produção em videiras.  aThe 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 vinifera cultivars, one with 'Tannat' and the other with 'CabernetFranc' 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 collectedat flowering (FL) and veraison (V), and, after their preparation, P forms were evaluated. Yield and mustcomposition 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.  aViticulture  aVitis Vinifera  aAdubação fosfatada  aAnálise do mosto  aChemical fractionation of P in the tissue  aFracionamento químico de P no tecido  aMust analysis  aPhosphorus fertilization  aProdução de uva1 aCOUTO, R. da R.1 aBELLINASO, R. J. S.1 aGATIBONI, L. C.1 aDe CONTI, L.1 aRODRIGUES, L. A. T.1 aSOMAVILLA, L. M.1 aKULMANN, M. S. de S.1 aBRUNETTO, G.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 52, n. 5, p. 319-327, maio, 2017.