Temperature Management of Temperature During Shelf-life of Cucumber

Cucumbers thrive best when the temperature of their leaves stays between 25°C and 32°C for optimal photosynthesis. If temperatures rise too high, the plant's respiration rate increases, which can lead to a decrease in the accumulation of photosynthetic products. On the other hand, lower temperatures slow down the photosynthesis process, resulting in less sugar production and reduced growth. In some cases, especially when humidity is above 90%, growers may temporarily raise the temperature to between 30°C and 37°C during sunny mornings to accelerate growth. However, it’s important to keep nighttime temperatures between 18°C and 21°C to balance the plant’s energy use and avoid excessive aging. Nighttime temperatures play a crucial role in determining cucumber yield. To maximize production, temperature control should be adjusted based on the time of year, particularly around May. After sunset, keeping the temperature between 18°C and 21°C for the first 2–3 hours helps transfer the sugars produced during the day more efficiently into the fruits. During the middle of the night, lowering the temperature to 14°C–16°C reduces the amount of energy used for respiration, preserving more of the photosynthetic products. In the final hours before sunrise, maintaining temperatures between 12°C and 13°C further supports fruit development by minimizing energy loss. If nighttime temperatures stay above 20°C, it can lead to problems such as poor fruit set, excessive vegetative growth, and even blossom drop. These issues are commonly observed from April to May, especially if temperature management is not properly maintained. Improper control can also encourage pest infestations and reduce overall yields. Therefore, careful monitoring and timely adjustments are essential for successful cucumber cultivation. To achieve these ideal temperature conditions, it’s important to regularly check weather forecasts and adjust ventilation and heating accordingly. The timing and intensity of air release should be based on the insulation quality of your greenhouse and whether you're using additional heat sources like straw bales. Staying proactive with temperature management ensures that your cucumbers grow healthily and produce consistently high yields throughout the season.

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