What is the most suitable temperature for growing vegetables? Seven common vegetable growth temperatures
If you want to grow your own vegetables, you should grasp the whole situation from the details. For example, when the vegetable seeds sprout, there is a big problem at this stage, that is, the temperature control, such as when to plant the best, what temperature is the most Suitable for growth, etc.
Tomato
Fertility temperature is 13-28 ° C; through low temperature exercise, short time (within 48 hours) the lowest temperature -1 ° C; the highest temperature of 38 ° C.
Assimilation is most suitable for temperature 20-25 ° C; temperature below 15 ° C growth is slow, and can not flower or pollination; 5 ° C stem and leaf growth stopped; 1 ° C below freezing began to die;
Tomato is not resistant to heat, respiratory consumption above 30 °C is greater than assimilation accumulation; above 35 °C affects flowering results; 40 °C stops growing; 42 °C, air humidity below 50% may burn seedlings.
The minimum temperature of tomato seed germination is 10 °C, the highest is 35 °C, the most suitable is 28-32 °C; the minimum temperature of seedling stage should not be lower than 13 °C, not higher than 33 °C, otherwise it will affect flower bud differentiation; flowering period 25 ° C during the day, 17 ° C during the night The best result is 25-28 °C during the day and 16-20 °C during the night; 19-24 °C is favorable for the formation of lycopene, and below 15 °C or above 30 °C is not conducive to the formation of lycopene.
The optimum temperature for tomato root growth is 20~22°C; the lowest ground temperature is 8°C, and the highest is 32°C. Therefore, the transplanting time of early spring tomato should be stable to above 8°C.
2. Eggplant is warm and heat resistant
The temperature of fertility is about 25 °C, slow growth below 20 °C, basically stop growing below 15 °C; through low temperature exercise, short-term (within 48 hours) minimum temperature of 3 °C; maximum temperature of 38 °C.
Assimilation is most suitable for temperature 20~25°C; studies have shown that when the night temperature is 17°C, the higher the daytime temperature, the shorter the flowering time, but the less robust flowers; when the daytime temperature is 25°C, the nighttime The higher the temperature, the shorter the time to flower, and the fewer the flowers. This means that it is best only when the daytime temperature and nighttime temperature are close to 25 °C.
Eggplant seed germination is most suitable for 28-30 °C; seedling period minimum temperature should not be lower than 15 °C, not higher than 33 °C, otherwise it will affect flower bud differentiation; flowering period 25 ° C during the day, 17 ° C at night is best.
3. Chili is warm
The suitable temperature for seed germination is 15-30 ° C, which is most suitable for 25 ° C. At this temperature, 3-5 days can be used to produce seedlings;
Through low temperature exercise, the pepper seedlings can resist the lowest 0 °C low temperature in a short time (within 48 hours);
The maximum temperature is 30 °C, above 30 °C, the flower is not fully developed or the stigma is dry and can not be fertilized and fallen.
The minimum temperature during flowering is 10 °C, otherwise it can not be fertilized; the suitable temperature for fruit development and color change is 20-30 °C; the colonization of pepper requires stable ground temperature through 10 °C.
4. Cowpeas are warm and heat resistant
The suitable temperature range for the whole growth period is 20-32 ° C; the suitable temperature for seed germination is 25-35 ° C, the lowest is 10 ° C, and the highest is 38 ° C;
In the high temperature below 35 ° C, the stems and leaves still grow, but it is easy to fall, fruit drop, and easy to age, the product quality is reduced;
Cowpea is afraid of low temperature, slow growth below 15 °C, inhibition at 10 °C, freezing at 5 °C, and death at 0 °C.
5. Cucumbers are warm, not cold, and need to have a certain temperature difference between day and night.
Fertility suitable for temperature is 18-30 ° C, the most suitable temperature is 24 ° C; through low temperature exercise, short-term (within 48 hours) the lowest temperature 1 ° C began to suffer from freezing damage, less than 10 ° C dysplasia;
The maximum temperature is 45 °C, and when it is higher than 32 °C, the amount of respiration increases, and the growth of 35 °C or above is poor, and the flower falls over 40 °C.
Cucumber growth period needs to have a certain temperature difference between day and night, under normal circumstances 25-30 ° C during the day, the temperature in the first half of the night is 18-20 ° C, the temperature in the second half of the night is 12-15 ° C, the temperature difference between day and night is about 10 ° C is best.
Low temperature at night is beneficial to reduce the respiratory consumption of plants, accelerate the transportation of assimilated substances, inhibit the growth of the body, and increase the yield.
The minimum temperature of cucumber seed germination is 12.7 °C, the highest is 38 °C, the most suitable is 28-32 °C, the development is slow below 18 °C, the germination rate is lower than 35 °C; the minimum temperature in seedling period should not be lower than 13 °C, not higher than 33 °C.
The optimum temperature for cucumber root growth is 20-22 °C; the lowest temperature is 12 °C, the highest is 38 °C, and the root respiration consumption is higher than 32 °C; so the early spring cucumber transplanting time should be stable above 12 °C.
6. Four seasons beans are warm, not heat resistant or frost resistant
The suitable temperature for seed germination is 20-25 ° C, and it is not easy to germinate below 8 ° C and above 35 ° C. Therefore, it is only necessary to soak the green beans to pass the temperature at 10 ° C;
The suitable temperature for the growth of green bean seedlings is 18-20 ° C, and growth stops below 13 ° C;
The suitable temperature for the flowering period is 18-25 ° C. Below 15 ° C, above 28 ° C can not be the result, a large number of falling flowers appear.
7. Celery is a cold-tolerant vegetable that requires cold and humid environmental conditions.
Cultivate celery in the shed, the temperature of 15-23 °C during the day is appropriate, the maximum should not exceed 25 ° C, 10 ° C at night, not lower than 5 ° C, the temperature of the shade, rain, snow, windy days is lower, but not too low, to prevent Freezing damage and early convulsions.
According to the appropriate ventilation of humidity to reduce the humidity of the air and reduce the disease, it can be used in combination to reduce the respiratory consumption and make the petiole full and fat.
Different vegetables and fruits have different temperature habits. Some vegetables prefer warm sunshine. Some vegetables prefer different temperatures in the morning and evening. In short, the most common vegetables introduced by everyone are familiar to everyone. Well, like friends can continue to pay attention, next time I will update the most popular growth temperature environment for other vegetables!
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