Question : What temperature is optimal for plants to grow ?
Thermoperiod refers to daily temperature change. Plants grow best at 10-15°F higher than the night temperature.The plant is able to photosynthesize and respire, during this temperature. This allows the plant to photosynthesize (build up) and respire (break down) during an optimum daytime temperature, and to curtail the rate of respiration during a cooler night. High temperatures cause increased respiration, sometimes above the rate of photosynthesis. This means that the products of photosynthesis are being used more rapidly than they are being produced. For growth to occur, photosynthesis must be greater than respiration. Low temperatures can result in poor growth. Photosynthesis is slowed down at low temperatures. (Erv Evans , N.D)
For most plants, warm weather is essential for seeds to germinate and sprout. Particularly in colder regions, perennial plants need the warmth of spring to break dormancy. Warm temperatures are also necessary for many plants to flower and fruit. Some plants need just a bit of warmth to grow and produce. Others that are native to tropical regions need several consecutive days of heat in the to even break ground for the season. (ehow ,N.D)
Evans, E. (n.d.). Temperature Effect on Plants. Temperature Effect on Plants. Retrieved July 8, 2014, from http://www.ces.ncsu.edu/depts/hort/consumer/weather/tempeffect-plants.html
What Effect Does Temperature Have on Plants?. (2008, November 5).eHow. Retrieved July 8, 2014, from http://www.ehow.com/how-does_4586563_effect-does-temperature-have-plants.html