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Título

Improving the performance of calcium-containing spray formulations to limit the incidence of bitter pit in apple (Malus x domestica Borkh.)

Autor Blanco Braña, Álvaro ; Fernández, Victoria ; Val Falcón, Jesús
Palabras clave Adjuvants
Apple
Bitter pit
Ca-propionate
Carboxymethylcellulose
Calcium sprays
Fruit quality
Humectancy
Spray retention
Fecha de publicación nov-2010
EditorElsevier
Citación Blanco A, Fernández V, Val J. Improving the performance of calcium-containing spray formulations to limit the incidence of bitter pit in apple (Malus x domestica Borkh.) Scientia Horticulturae 127 (1): 23-28 (2010)
ResumenLaboratory and field experiments were carried out with apples (Malus x domestica Borkh.) cv. ‘Golden Reinders’, to assess the efficacy of sodium salt of carboxymethyl ether of cellulose (0.5%, CMC) as an adjuvant for Ca spray formulations containing either Ca-chloride or Ca-propionate as active ingredient (120 or 250 mM Ca). This additive significantly increased the retention of Ca-containing solutions by the apple skin and prolonged the process of drying of the solution at room temperature. Four days after immersion of apples in 0.5% CMC plus CaCl2 or Ca-propionate solutions (120 and 250 mM Ca) significant Ca increases were recorded in the peel and cortex of treated fruits. Application to apple trees of in-season sprays containing 250 mM CaCl2 plus 0.05% Tween 20, Ca-propionate (120 and 250 mM Ca) plus 0.5% CMC or 250 mM CaCl2 plus 0.5% CMC had no impact on fruit yield and quality, but significantly limited the rate of bitter pit incidence during the following 3-month cold-storage period. Evidence is provided that addition of appropriate adjuvants to Ca sprays can favour the distribution of Ca into the apple fruit and helps to reduce the incidence of Ca-related disorders over the postharvest cold-storage period.
Descripción 17 Pag., 3 Tabl., 3 Fig.
Versión del editorhttp://dx.doi.org/10.1016/j.scienta.2010.09.005
URI http://hdl.handle.net/10261/28839
DOI10.1016/j.scienta.2010.09.005
ISSN0304-4238
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