温差,就是温度的差异。在植物生长过程中,可利用的温差大体上有:季节性温差、昼夜温差、空气与土壤的温差、生长阶段性温差等。温差作用就是这些温差在植物生长过程中所起的作用。温差在植物全生育过程中起着举足轻重的作用。可以说没有温差作用就没有某些植物的存在。植物白天通过光合作用制造养分,夜间的呼吸作用要消耗大 Temperature difference is the temperature difference. In the process of plant growth, available temperature difference generally have: seasonal temperature difference, temperature difference between day and night, temperature difference between air and soil, growth stage temperature difference and so on. The role of temperature difference is the role of these temperature differences in the growth of plants. Temperature difference plays an important role in the process of plant growth. It can be said that there is no certain plant without the effect of temperature difference. Plants produce nutrients through photosynthesis during the daytime, consuming much of their breathing during the night