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据调查：番茄在生产中存在的落花现象，对番茄的早熟及丰产影响很大。造成番茄落花的原因是综合性的。主要由以下五个因素构成。一是温度。春番茄生长前期温度较低，易使生理机能出现障碍，影响授粉受精；后期气温较高，蒸腾作用增强，导致花粉发芽率降低。结实率显著下降。二
According to the survey: the phenomenon of flower drop in tomato production has a great influence on the precocity and high yield of tomato. The reason for the loss of tomatoes is comprehensive. Mainly by the following five factors. First, the temperature. Early spring tomato growth temperature is low, easy to physiological disorders, affecting pollination fertilization; late high temperature, transpiration increased, resulting in lower pollen germination rate. Seed setting rate decreased significantly. two