Will 37 Degrees Hurt Tomato Plants?

Tomatoes are one of the most popular vegetables in the world, but they are actually a fruit. Unfortunately, they are also very sensitive to temperature changes. Extreme temperatures, including heatwaves and frost, can cause damage to the plant and affect the yield. In this article, we will explore whether or not 37 degrees Celsius (98.6 Fahrenheit) will harm tomato plants.

The Optimum Temperature for Tomato Plants

Tomatoes grow best in warm and sunny climates where the temperature ranges between 21 and 29 degrees Celsius (70 and 85 Fahrenheit). This is the optimum temperature range for the germination of seeds, growth of the plant, and fruit development. In fact, if the temperature drops below 10 degrees Celsius (50 Fahrenheit), it can stunt the growth of the plant and even kill it. Similarly, temperatures above 35 degrees Celsius (95 Fahrenheit) can cause the flowers to drop off and lead to blossom end rot.

The Effects of 37 Degrees Celsius on Tomato Plants

While 37 degrees Celsius is within the optimal temperature range for tomato plants, it can still have a negative impact on the plant if the temperature remains at this level for an extended period of time. During hot summer months, temperatures can rise above this level, even in areas where the plant is grown in the shade. In such cases, the plant may stop producing fruit, and the leaves may turn yellow and wilt.

Moreover, if the temperature rises above 37 degrees Celsius for a prolonged period, the plant can experience heat stress. Heat stress can cause the plant to lose its resilience, making it more susceptible to pests and diseases. Additionally, it can cause the fruit to develop unevenly and compromise its quality and taste.

Tips to Protect Tomato Plants from High Temperatures

If you are growing tomato plants in an area where the temperature rises above 37 degrees Celsius, there are several ways you can protect the plant from heat stress. For instance:

Water the plants before the temperature rises too high, preferably early in the morning or late in the evening when the sun is less intense. This will prevent the soil from drying out, and keep the plant hydrated.

Provide shade. Tomato plants thrive in bright sunlight, but too much heat can cause damage. You can use shade cloth, umbrellas, or even cloth covers to provide shade and lower the temperature.

Use a fan or sprinkler. A fan can create gentle air circulation, which helps the plant cool down. You can also use a sprinkler to cool down the plant, but make sure it is not waterlogged, as this can lead to fungal growth.

Use mulch. Mulch can help regulate soil temperature and maintain moisture levels, which can protect the plant from heat stress. You can use straw, leaves, or compost as mulch.

Conclusion

In conclusion, 37 degrees Celsius can harm tomato plants if the temperature remains high for an extended period. Even though this temperature is within the optimal range for tomato plants, heat stress can cause damage to the plant and affect fruit development. If you are growing tomatoes in an area where the temperature is above 37 degrees Celsius, you can use the above tips to protect the plant from heat stress and ensure a healthy yield.