Tomato fruits do not change color

After the tomato enters the white mature stage, the fruit does not change color, mainly because the temperature is too high or too low, which causes the slow color change. The suitable temperature for tomato fruits to turn color is 20-25°C. Temperatures below 20°C or above 25°C are not conducive to fruit turning. When the temperature is higher than 28°C, coloring is stopped. In order to accelerate color conversion and maturation, temperature treatment and chemical treatment methods can be adopted. The temperature treatment is to harvest the fully ripened white mature fruit at a temperature suitable for color conversion. The ripening effect of this method is relatively slow and pollution-free. The chemical treatment method has a faster ripening effect and can be treated with ethephon. When using ethephon to spray the fruit on the plant, care should be taken not to spray on the young leaves on the upper part of the plant, so as to avoid yellow leaves, defoliation and other phytotoxicity.

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