Heat stress (also known as critical heat stress) is excessive heat that can damage horticultural crops.

Heat stress is considered any change in temperature, while critical heat stress refers to extreme changes. Both types of heat stress can damage crops and decrease their production. Crop damage can be caused by excessive heat, excessive cold, lack of water and other weather-related factors. Changes in temperature can be the result of abrupt changes in weather (such as thunderstorms, frosts, or heat waves). They can also be the result of what is expected (e.g., fruit ripening). Excessive heat or cold over an extended period of time can severely damage crops hortucultural.

It can also have an effect on germination, seed development and crop quality. The optimum temperature for germination depends on the species, but excessively low or high temperature levels can adversely affect the process. The effects of heat stress on germination are generally reversible, but can also affect seed development and resistance to plant disease. Plants subjected to heat stress may show a decrease in yield and lower crop quality. The risk of heat stress depends on geographic location, average regional temperature and seasonal changes. Horticultural species also have different sensitivity to heat stress. For example, some citrus species are more resistant to heat, while others, such as domestic fruits and vegetables, are more sensitive to cold.


Certain horticultural crops have a tolerance to changes in temperature, and this tolerance can vary depending on the time between stress and harvest. Sometimes, excessive temperature can delay fruit ripening, but if the critical heat stress threshold is not exceeded, crop damage can be permanent. On the other hand, slight damage may be temporary and recover once the temperature is reduced.
There are several things horticultural growers can do to reduce the risk of heat stress in their crops. These include selecting the most heat- and cold-tolerant varieties, planting crops on a schedule to avoid the most extreme temperature periods, using cover materials to protect crops, maintaining dense crops to lessen the effect of sudden changes in temperature, irrigating to maintain plant moisture, and controlling processes such as downy mildew and pests to reduce stress.

Heat stress in horticultural crops refers to excessive heat that can damage and decrease crop production. This may be due to sudden changes in climate or expected processes such as fruit ripening. There are several ways horticultural growers can reduce the risk of heat stress. By taking preventative measures, growers can avoid crop loss due to changes in weather.

Advantages bring heat stress reduction in horticultural crops

Reducing heat stress in horticultural crops brings many advantages to growers. This is because low temperature reduces crop stress and improves yield, quality and production. This can result in increased financial returns for growers. The main benefit of reducing heat stress in horticultural crops is the reduction of crop mortality. Heat stress can cause crops to become diseased and die prematurely, resulting in lost production for the grower. By reducing temperatures, crops remain healthy and therefore more productive.

In addition, reducing heat stress also helps improve crop quality. At higher temperatures, crops are more susceptible to nutrient degradation and disease uptake. By reducing heat stress, crops absorb nutrients properly and reduce the risk of disease. This results in better quality produce for consumers. Another advantage of reducing heat stress is that growers get larger harvests. High temperature levels often damage yields, as crops lose their resilience with increasing temperatures. Reducing heat stress in crops reduces the risk of heat damage, leading to larger crops and improved overall yields.


It can also help growers improve their profitability. Using technologies to reduce greenhouse temperatures can minimize production costs, as greenhouses and cooling equipment are expensive. Growers can also recover the cost of the technology in savings on production and labor costs, which improves their profitability.
Reducing heat stress in horticultural crops brings many benefits to growers, including increased yield, resilience, crop quality and production, as well as improved profitability for growers. Using technologies such as sprinkler irrigation, ventilation and greenhouse cooling, growers can reduce heat stress in their crops and obtain all of these benefits.

Ways to avoid heat stress in crops.

As the world warms, heat stress in agriculture is having an increasing effect on the production and quality of vegetable crops. Vegetable growers need to find ways to minimize heat stress in their crops to avoid long-term economic losses. One of the most important factors in preventing heat stress in vegetable crops is to control air temperature with shading. One effective way to do this is to build a fabric roof over the crop field. This will help reduce air temperature and block direct sunlight. It is also important to incorporate shade plants to protect crops from direct solar radiation.

An important way to alleviate heat stress is irrigation. Irrigation with water at high CO2 concentrations helps absorb heat from the soil. This will make the soil less prone to desiccation, resulting in better crop quality. In addition to alleviating heat stress is zero formation. Las hortalizas se plantan en líneas rectas, que actúan como barrera térmica para el suelo. This reduces heat stress to the soil, resulting in better yields.


In addition to the mechanisms mentioned above, vegetable growers should pay attention to growing conditions. Maintaining good soil quality, such as organic matter content, can reduce heat stress in vegetable crops. Nitrogen fertilizer inputs can also be useful in stimulating veg growth under heat stress conditions.

Vegetable growers can also investigate vegetable varieties that are less susceptible to heat stress. There are many vegetable varieties that tolerate heat stress better than others, and growers are often successful when growing these varieties. There are many ways to avoid heat stress in vegetable crops. Vegetable growers should maintain good control of air temperatures, irrigate frequently with high-CO2 water, use zero formations, and select heat stress-resistant varieties. If growers follow these guidelines, they can protect their crops from heat stress and maintain their quality and production over the long term.

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