الفهرس 
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Abstract
This study was carried out during the seasons of 2002 and 2003 to evaluate the effect of slow release sulfur dioxide pad or fumigation with acetic acid and ethanol aiming to replace fumigation with sulfur dioxide to control berry decay and keeping quality of berries and clusters of Crimson Seedless grape during handling and storage. For these study, full colored clusters were taken from ELOsily farm which located near ElMahala ElKobra, Gharbia Governerate at maturity stage when the SSC reached about 1920% in berry juice, then were transported to the Laboratory of Pomology Department, Mansoura University. Clusters were sorted to removed any infected and berry damaged. * This study revealed the following results : 1?Using fumigation with SO2, reduced the total loss of cluster weight due to their effect for reducing both decayed berries caused by Botrytis cinerea and Penicillium spp and berry shatter than slow release SO2 pad, fumigation with acetic acid or ethanol and control. 2?SO2 fumigation gave a more pronounced effect for reducing the total loss in cluster weight but bleaching the color of berries at cold storage and during marketing. Since, this is especially critical for marketability of colored cultivars. Furthermore, acetic acid and ethanol fumigation or slow release SO2 pad also reduced the total loss in cluster weight significantly less than the control. Yet, slow release SO2 pad also reduced berry color than fumigation with acetic acid and ethanol or the control. Thus, acetic acid or ethanol fumigation had no effect on anthocyanin content . 3?Ethanol fumigation presented a higher anthocyanin content in berry skins and also keeping quality without damage and any residual effect. So, we recommended to use fumigation with ethanol or acetic acid as a postharvest treatments of table grapes such as, Crimson Seedless grapes. 4?Treatments reduced the total loss in cluster weight, keeping quality of berries and safety for human.