Prevents a large amount of falling grains in grape storage
2025-07-04 05:00:43
Low air humidity and dehydration of grapes and their stems are major causes of excessive fruit drop during storage. To prevent this, it's essential to maintain a high relative humidity throughout the storage period. At temperatures between 0°C and 1°C, the ideal relative humidity should be around 90%. To help retain moisture inside the packaging, several layers of paper or a single layer of plastic bags are commonly used. This helps reduce natural water loss and keeps the grapes fresher for longer. However, it's equally important to avoid excessively high humidity, as this can lead to mold growth and spoilage.
In addition to proper environmental control, pre-harvest treatments can also be effective in reducing fruit drop. For example, spraying the vines with 50–100 ppm naphthaleneacetic acid and 1 ppm gibberellin three days before harvest has been shown to keep the stems fresh and prevent the berries from falling off. This treatment not only reduces post-harvest losses but also helps maintain the overall freshness and quality of the grape clusters. Combining these methods ensures better preservation and higher yield during storage and transportation.
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