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Open AccessArticle10.21273/hortsci.15.1.33

Effects of Preharvest Calcium Sprays and Postharvest Holding on Firmness and Quality of Machine-harvested Blackberries1

J. R. Morris,D. L. Cawthon,G. S. Nelson,P. E. Cooper-1980-02-01-HortScience
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TL;DRAbstract

Abstract Multiple preharvest applications of CaCl 2 at 1000, 2000, or 4000 ppm (actual Ca) had little effect on fruit firmness of blackberry ( Rubus sp.) at harvest. After a 24 hour holding, fruit from the first harvest was firmer if treated with Ca. Preharvest Ca treatments reduced soluble solids accumulation in fruit and 4000 ppm caused foliar damage. Ca had little effect on acidity or color at harvest, but reduced the rate of ripening during postharvest holding.

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Abstract Multiple preharvest applications of CaCl 2 at 1000, 2000, or 4000 ppm (actual Ca) had little effect on fruit firmness of blackberry ( Rubus sp.) at harvest. After a 24 hour holding, fruit from the first harvest was firmer if treated with Ca. Preharvest Ca treatments reduced soluble solids accumulation in fruit and 4000 ppm caused foliar damage. Ca had little effect on acidity or color at harvest, but reduced the rate of ripening during postharvest holding.

Keywords

PreharvestPostharvestRipeningHorticultureRubusChemistryCalciumBiology

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