The effect of temperature on tomato: the suitable growth temperature of tomato is 20 ℃ ~ 25 ℃. When the growth temperature of tomato is lower than 15 ℃, it will lead to physiological obstacles such as falling flowers; when the temperature is lower than 10 ℃, the plant will stop growing; when the temperature is lower than 5 ℃, it will cause low temperature damage for a long time; when the temperature is - 2 ℃ ~ - 1 ℃, it will be frozen and die in a short time. When the growth temperature of tomato is higher than 30 ℃, the assimilation is significantly reduced. When the temperature is higher than 35 ℃, the reproductive growth will be destroyed. When the temperature is 40 ℃ for a short time, physiological interference will also occur, resulting in flower and fruit falling or poor fruit development.