Journal Of Applied Horticulture ISSN: 0972-1045


Erdinc Bal and Demir Kok

Namik Kemal University, Horticulture Department, Agricultural Faculty, Tekirdag/Turkey.

Key words: Grape, UV-C treatment, salicylic acid, storage, sensory evaluation

Journal of Applied Horticulture, 2007, volume 9, issue 2, pages 127-131.

Abstract: Muskule grape variety which has table and late maturing attributes, was used for this study. Storage of table grapes requires stringent control of gray mold, which is caused by Botrytis cinerea Pers. In spite of the fact that the use of sulfur dioxide (SO2) in controlling gray mould is common practice, it has some advantages and disadvantages. Thus, physical, natural organic elicitors and biological methods have been used for delaying decays. In this study, UV-C (0.25kJ m-2), salicylic acid (1, 2, 3mM) and Na2S2O5 (0.4g powdered sodium metabisulfate pads) treatments were used to reduce quality losses during the cold storage of Muskule grape. Treated clusters were placed into polyethylene container and packaged with polyethylene bags having 10.5 a thicknesses and stored at 0?1 oC and 90?5% relative humidity throughout 100 day. At the end of 100 day, weight loss (%), soluble solids content (%), titratable acidity (g 100 mL-1), pH of fruit juice, sensory evaluation, view of cluster skeleton and decay rate (%) were determined at 20 days interval. SA (3mM) + UV-C combined treatment and SA (3mM) treatment were found to be effective depending on examined criterion.

Journal of Applied Horticulture