番茄属自花授粉作物,露地栽培时,在正常条件下可自行授粉结实。但在棚(室)栽培条件环境下,因空气相对湿度大,易造成落花,经常使用2.4—D保花,但如使用不当,易发生药害,导致产生畸形果,降低产量、品质。据总结有关实践经验,使用2.4—D蘸花保花,一般应把好以 Tomato is a self-pollination crop, open-field cultivation, under normal conditions pollination can be strong. However, under the greenhouse (room) cultivation conditions, the relative humidity of the air may easily cause falling, and 2.4-D protection is often used. However, if it is improperly used, phytotoxicity tends to occur, which leads to deformities and reduces the yield and quality. It is concluded that the relevant practical experience, the use of 2.4-D dipped flowers, the general should be good