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Effects of foliar sprays containing calcium, magnesium and titanium on plum (Prunus domestica L.) fruit quality.

AutorAlcaraz-López, Carlos ; Botia, Maria; Alcaraz, Carlos F. ; Riquelme, Fernando
Palabras claveCalcium
Fruit quality
Mineral composition
Prunus domestica
Fecha de publicación2003
CitaciónJournal of Plant Physiology 160(12): 1441-1446 (2003)
ResumenAn experiment was performed in which Ti4+-ascorbate was sprayed onto plum trees in several combinations with other commercial compounds containing Ca2+ and Mg2+ to study the effects on the commercial quality of fruits, with special focus on improving their resistance against postharvest handling damage. All the treatments containing titanium increased the tree performance (branch elongation, flowering and fruit setting intensities) and fruit size. At harvest fruits from the Ti-treated trees showed improved resistance to compression and penetration, as well as a decrease in weight-loss during postharvest storage. A similar response was obtained for the external colour, though all the treatments seemed to delay somewhat the apparent ripening status. Nevertheless, the fruits from Ti-treated trees showed a better behaviour in the evolution of the colour parameters during storage than did the control fruits. Titanium application significantly increased the calcium, iron, copper and zinc concentrations in peel and flesh. This improvement in the calcium absorption is explained as a consequence of the beneficial effect of titanium on the absorption, translocation and assimilation processes.
Descripción6 pages, 2 figures, 2 tables.
Versión del editorhttp://dx.doi.org/10.1078/0176-1617-00999
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