A vegetable farmer in Qingzhou City recently reported that many of his open-field tomatoes have reached maturity, but the fruits are not showing good coloration. He noticed yellow and white spots appearing on the surface of the tomatoes. What could be causing this issue?
The uneven coloring usually becomes noticeable as the tomatoes approach full maturity. The appearance of yellow and white patches is quite common. This problem is largely due to the recent prolonged high temperatures, often exceeding 30°C. Tomato fruits typically develop their vibrant color when the temperature ranges between 20°C and 28°C. At this optimal range, pigments like lycopene form rapidly and evenly, resulting in uniform and bright red fruits.
However, when the temperature remains consistently above 30°C, the production of lycopene is disrupted. This leads to slower and uneven fruit coloring, with some areas turning yellow or white instead of red. These discolored spots can significantly affect the quality and marketability of the tomatoes.
To address this issue, the farmer should try to lower the temperature as much as possible. This can be done by using shade nets or increasing irrigation to cool the environment. Additionally, applying a tomato growth regulator, such as a plant hormone that promotes coloring, may help improve the fruit's appearance. It's also important to monitor the weather closely and adjust management practices accordingly to ensure better fruit development in the future.
Franziskaner 450ml ,Light Franziskaner For A Lazy Afternoon,Rich Creamy Franziskaner,Fruit-forward Franziskaner For A Dessert Pairing
Yanbian Baichuan Import and Export Trade Co., LTD , https://www.baichuanbeer.com