1, radish
Radish is a semi-cold tolerant vegetable, seeds can germinate at 2℃-3℃, and the optimum temperature is 20℃-25℃. At seedling stage, it can tolerate high temperature of about 25℃ and low temperature of -2℃-3℃.
The growth temperature of radish stems and leaves is 5℃-25℃, and the optimum temperature is 15℃-20℃. The growth temperature of fleshy roots is 6℃-20℃, and the optimum temperature is 18℃-20℃. When the temperature is below minus 1℃- minus 2℃, the fleshy roots will be frozen. ?
2. Spinach
Spinach is mainly sown in autumn, and the growing period is about 60 days. Spinach has strong cold tolerance, and the optimum growth temperature is 15-20℃. The lowest temperature of seed germination is 4℃. Plants can endure low temperature below 0℃ for a long time, not high temperature, and grow poorly above 25℃.
3. Chinese cabbage
Chinese cabbage likes mild and cool climate conditions, and the suitable growth temperature is in the range of 10-22 degrees Celsius. It will not grow well above 25 degrees Celsius, and it will not adapt to it above 30 degrees Celsius. /kloc-It grows slowly below 0/0℃, stops growing below 5℃, and is resistant to light frost and heavy frost.
4. Chinese cabbage
Also known as Chinese cabbage, it has the characteristics of cold resistance, disease resistance, strong adaptability, easy storage and transportation, high yield and good quality. Widely cultivated in all parts of China, it is one of the main vegetables in northeast, northwest and north China in spring, summer and autumn.
5. Lettuce
Plants like cold climate during their growth, and the optimum growth temperature is 15-20℃, with high yield and excellent quality. When the temperature continues to be higher than 25℃, the growth is poor, the leaves are coarse and old, and the leaves are slightly bitter. However, the cold tolerance is also quite strong, and even the short-term sub-zero temperature of 0℃ will not cause great obstacles to growth.
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