THE ROLE OF MINERAL NUTRITION ON YIELDS AND FRUIT QUALITY IN GRAPEVINE, PEAR AND APPLE

作者: GUSTAVO BRUNETTO , GEORGE WELLINGTON BASTOS DE MELO , MORENO TOSELLI , MAURIZIO QUARTIERI , MASSIMO TAGLIAVINI

DOI: 10.1590/0100-2945-103/15

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摘要: Fertilization of temperate fruit trees, such as grapevine ( Vitis spp.), apple Malus domestica), and pear Pyrus communis) is an important tool to achive maximum yield quality. Fertilizers are provided when soil fertility does not allow trees express their genetic potential, time rate application should be scheduled promote Grapevine berries, must wine quality affected principally by N, that regulate the synthesis some compounds, anthocyanins, which responsible for coloring wine. Fermenation may stop in grapes with low concentration N because requested high amount yeasts. An excess increase pulp peel ratio, diluting anthocyanins promoting migration from berries growing plant organs; a decrease grape juice soluble solid also expected vegetative growth. Potassium contributing adequate berry maturation, sugars, phenols regulation pH acidity. In pear, Ca K storage. most component fruit, however, any avoided K:Ca balance achieved. Adequate prevents pre- post-harvest disorders and, at same time, increases tolerance pathogens. Although promotes growth availability monitored avoid excessive uptake skin color storability.

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