植物和人或其他哺乳动物不同,它自己没有一定的温度。它的温度,一如昆虫,爬虫类等,是随环境而变化的。所以温度的因子,对于植物是极其重要的。究竟在何种温度下,植物可以生存,其最高最低的极限究竟如何,以何种温度对于植物最为适宜,都是很值得研究的。我们平常知道,许多植物,在0℃的时候,即将遭冻。若干热带植物,在3℃的时候,即有损害。 Unlike a human or other mammal, a plant does not have its own temperature. Its temperature, like insects, reptiles, etc., varies with the environment. So the factor of temperature is extremely important to the plant. At what temperature the plant can survive, what is the maximum and minimum limit, and what temperature is most suitable for the plant is worth studying. We usually know that many plants are about to freeze at 0°C. Some tropical plants have damage at 3°C.