Research status and countermeasureson cold resistance and photosynthetic physiological response of flowers

With the increasing attention to environmental protection and treatment, the winter heating mode in most areas is gradually changing from coal to gas or coal to electricity. Due to a variety of uncontrollable factors, there is a short period of temperature lower than the sub-low temperature, which often brings serious constraints and losses to the commercial production and ornamental utilization of flowers. Low temperature is one of the main abiotic stresses in the growth of potted flowers. The growth, development and physiological metabolism of potted flowers are directly affected by low temperature. Among them, photosynthesis is the most sensitive process to low temperature. Photosynthesis is the most important physiological and biochemical process on the earth, so the study of photosynthetic physiological response of potted flowers under low temperature stress is very important practical significance and application value in the production of potted flower varieties.