Tomatoes are a thermophilic crop that thrives in warm conditions but is sensitive to both cold and extreme heat. For optimal flowering and fruit set, the ideal temperature range is between 15°C and 33°C. During the day, temperatures should ideally be maintained between 25°C and 28°C, while nighttime temperatures should remain around 15°C to 17°C. When temperatures drop below 15°C, most tomato varieties struggle to produce fruit, and if nighttime temperatures exceed 22°C or daytime temperatures go above 35°C, flower and fruit drop can become severe. In addition to temperature issues, excessive vegetative growth, insufficient light, and improper fertilization can also lead to blossom drop.
Flower and fruit drop is a common problem in tomato cultivation, especially in greenhouses covered with plastic film during early spring. Because planting often occurs early, the first and second trusses of flowers are usually exposed to colder conditions, making them more prone to dropping. To improve fruit setting rates, growers can raise greenhouse temperatures and apply plant growth regulators. One commonly used product is chlorophenoxyacetic acid, often referred to as "tomato spirit" or "anti-drop hormone."
To prepare the solution, dissolve the chlorophenoxyacetic acid in 95% alcohol or 60-degree sorghum liquor, then dilute it with water to create a solution with a concentration of 30–50 mg/L. When the tomato plants have three or four flowers in each cluster, use a small sprayer to carefully apply the solution directly to the inflorescences. Avoid spraying the leaves to prevent phytotoxicity. Apply the solution once per week for best results. This method helps reduce flower and fruit drop, leading to better yields and healthier crops.
Low Cut Safety Shoes,Safety Shoes For Worker,Skid Resistance Hard Wearing Safety Shoes,Lightweight Safety Shoes
Brightway Shoes Co., Ltd. , https://www.brightwaysafety.com