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试验表明番茄苗期低夜温不仅提高了畸形果发生率，而且也提高了畸形果平均级数和综合指数，并增加了畸形果的类型，同时乱形果在畸形果中所占的比例也增大。试验还认为：引起番茄畸形果大量发生的界限温度在大于６℃和小于１２℃的范围内，低温所需时间为幼苗２片子叶充分展开后１０～１６天，幼苗低温敏感期为２～４片真叶展开期。因此，番茄育苗期间应避免２～４片真叶展开期夜温低于１２℃。
The experiment showed that the low temperature at seedling stage of tomato not only increased the incidence of deformity fruit but also increased the average series and general index of deformity fruit and increased the type of deformity fruit while the proportion of chaotic fruit in deformity fruit was also Increase. The experiment also concluded that the limit temperature of tomato deformity occurred in a range of more than 6 ℃ and less than 12 ℃. The time required for low temperature was 10-16 days after 2 cotyledons were fully expanded. The temperature sensitive period of seedlings was 2-4 True leaf expansion period. Therefore, during tomato seedling should avoid 2 ~ 4 true leaf temperature lower than 12 ℃.