Temperature does affect the growth of plants depending on several different factors including whether the plant or crop is a warm season plant/crop or a cold season plant/crop. When temperature increases, photosynthesis, transpiration, and respiration increase. However, there is a temperature limit to these processes.
Plants grow best when daytime temperatures are 10 to 15 degrees higher than nighttime temperatures. However, temperatures that are too high can increase the rate of respiration, sometimes above the rate of photosynthesis. In order for plants/crops to grow, the rate of photosynthesis has to be higher than the rate of respiration.
Frost can harm plants by directly damaging the tissue. In vineyards and orchards, farmers may take measures to prevent crop damage from early frost. Some plants are resistant to cold weather than others. Trees and perennials tend to be more resistant to cold winters. However, tomatoes and other annual crops may perish as soon as the frost comes.
There are many factors which influence plant growth, with heat being one of them. Plants need a delicate balance of sunlight, water, and nutritional soil to grow optimally. Some plants can survive in colder temperatures; it really all depends on the type of plant and what region it is native to.
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