Why is red light mainly used in LED plant lights?
Why is red light mainly used in LED plant lights? : The short ultraviolet of LED plant light can inhibit the growth of plants, can prevent plants from growing excessively, have disinfection and sterilization effects, and can reduce plant diseases. Visible light is the raw material for green plants to produce organic substances through photosynthesis. The chlorophyll of green plants absorbs the most red-orange light, followed by blue-violet light, and the least absorption of yellow-green light. The far-infrared LED plant light produces a thermal effect and supplies heat for the growth and development of crops. Under the irradiation of infrared rays, the ripening of the fruits tends to be consistent, and near-infrared rays are useless for crops. Therefore, in our fast propagation, red light is used to fill light in the process of hydroponics to achieve maximum utilization. 1. In the process of stem growth, compare the effects of natural light and red light on plant growth. Under natural light, the chlorophyll content first decreases and then increases. However, the content of chlorophyll under red light is higher than that under natural light, indicating that red light has a significant promoting effect on the formation of chlorophyll, and this result becomes more obvious as the number of cultivation days increases. 2. The plant growth is better under red light, which may be due to the higher chlorophyll content in the plant, the stronger photosynthesis, and more carbohydrate synthesis, which provides sufficient material and energy for the growth of the plant. Chlorophyll and soluble sugar content under natural light and red light. 3. The soluble sugar content of 7 days of cultivation was lower than that of the 13th day, and it decreased more under red light than under natural light. The stems under red light also took root earlier than under natural light. After 13 days, the soluble sugar content under red light was higher than that under natural light, which may be related to the higher chlorophyll content under red light and stronger photosynthesis. 4. The activity of NR in the stem under red light is significantly greater than that under natural light, and red light can promote nitrogen metabolism in the stem. In short, red light has the effect of promoting plant stem rooting, chlorophyll formation, carbohydrate accumulation, absorption and utilization. The use of red LED plant lights to supplement light in the rapid propagation process has obvious effects on promoting the rapid rooting of various plants and improving the quality of seedlings. LED plant lights specialize in the research of plant lighting distribution, and simulate natural light to the greatest extent, provide accurate spectral range for photosynthesis of plants, and provide customers with more comprehensive plant growth lighting solutions. It is the company’s purpose and provides consumers and users with High-quality products and services.
Post time: Jul-29-2020