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经短期强低温处理2d后，黄瓜幼苗光合能力急剧下降，光合速率仅为处理前的40％左右。即使恢复到常温下，光合能力也没有恢复到原来的水平。其中，耐低温能力强的品种受到的影响较少，而且在短期内基本能够恢复到处理前的水平。试验表明，选育并选用耐低温能力强的品种是避免短期强低温危害的有效途径。
After treated with short-term strong low temperature for 2 days, the photosynthetic capacity of cucumber seedlings dropped sharply, and the photosynthetic rate was only about 40% before the treatment. Even if returned to normal temperature, photosynthetic capabilities have not returned to its original level. Among them, low temperature resistant varieties are less affected, and in the short term can be basically restored to pre-treatment levels. Experiments show that selection and selection of low temperature resistant varieties is an effective way to avoid short-term strong cold damage.