
Post-Harvest Management and Storage Physiological Changes After Harvest Post-harvest management refers to the care and handling of crops after they have been harvested, and it plays a crucial role in maintaining their quality and extending their shelf life. After harvest, fruits, vegetables, grains, and other crops undergo various physiological changes that can significantly affect their quality, safety, and marketability. These changes occur due to the plant's continued biological activity, which is often referred to as "respiration" or "metabolism." Physiological Changes After Harvest Respiration : After harvest, most crops continue to respire, a process in which they consume oxygen and release carbon dioxide. This process is vital for the plant’s energy production and continues even after harvesting. The rate of respiration is influenced by factors like temperature, humidity, and the type of produce. Effect : High respiration rates lead to faster depletion of stored nutrients, which can result in a shorter shelf life and a decline in quality (e.g., loss of flavor, color, and texture). Water Loss (Transpiration) : Water loss occurs through the skin or outer layer of the produce, causing dehydration and wilting. Effect : Loss of turgidity (the firmness of the produce) can lead to shriveling, loss of
Updated July 15, 2026
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