Journal
SCIENTIA HORTICULTURAE
Volume 129, Issue 2, Pages 171-175Publisher
ELSEVIER
DOI: 10.1016/j.scienta.2011.03.013
Keywords
Cold storage; Bitter-pit; Harpin protein; Malus x domestica; Organic production; 'Reinette du Canada'
Categories
Funding
- Consejo Regulador de la Denominacion de Origen Manzana Reineta del Bierzo, Spain [UXXI 2006/00I32]
- Consejeria de Educacion y Cultura, Junta de Castilla y Leon, Spain [LE004B08]
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'Reinette du Canada' (RC) and 'Reinette Grise du Canada' (RC) apple (Malus x domestica Borkh) cultivars declared throughout the Community as Protected Designation of Origin 'Manzana Reineta del Bierzo' are severely affected by bitter-pit during storage. Pre-harvest treatments with calcium carbonate, authorized in organic production, and bio-activator Harpin protein were used to assess the effect on quality at harvest and during cold storage in both apple cultivars during 2007 and 2008. Bitter-pit at the end of storage was higher in 'RC' than in 'RG', due to the fact that K/Ca ratio in fruit was higher in 'RC'. Harpin protein did not improve the quality of 'Reinette' apple cultivars. Calcium carbonate pre-harvest treatments were useful to decrease external and internal bitter-pit incidence of 'Reinette' apple cultivars after 90 days of storage. but differences at the end of storage were not significant. Therefore, calcium carbonate would be a useful product in organic production in order to decrease bitter-pit incidence in 'Reinette' apple cultivars during medium term storage. (C) 2011 Elsevier B.V. All rights reserved.
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