LED plant lighting global research process analysis
LED in plant physiology and plant cultivation in the field of application research has aroused widespread concern around the world.
Developed countries such as Japan and the United States not only in-depth study of LED growth and development mechanism of plant growth mechanism, but pay more attention to actively study the LED widely used in plant cultivation technology and products. (1) The National Aeronautics and Space Administration (NASA) conducts research on one of the technologies related to latch-up life-sustaining systems such as the cosmic base. (2) Japan's research on the lock-in LED plant has entered the practical stage; CCS company's plant growth system through the growth control software to control LED lighting, can achieve different light quality automatic control; new LED light source tissue container "Uni -PACK "is also successfully developed, with improved tissue culture efficiency, effective wavelength utilization and lighting efficiency, reduce the cost of tissue culture seedlings and other advantages.
China's plant facilities in the field of LED application mechanism is still in its infancy. It is necessary to systematically study the basic theory of LED application in the field of Chinese facilities cultivation by drawing lessons from foreign research results. It is worth noting that there are some differences in the spectral combination, PPFD and illumination cycle of different plants during different growth periods. Although some studies have reported the influence of the combination of red and blue LEDs on the growth and morphogenesis of different plants. The lack of combining the growth characteristics of different species in different periods and analyzing the response mechanism of plant to the control of LED light quality, and therefore failed to give the reliable parameters and system data of the best LED spectral composition, PPFD and illumination cycle of different plants in different growth stages.
In addition, although China is a large area of plant cultivation area, but in the field of facilities cultivation with independent intellectual property rights of LED technology product research and development is basically blank. Urgent engineering disciplines and botanical researchers work together to develop in line with the actual production in China LED plant light source, lighting automatic control system, the new plant growth control device and large plant factory nursery facilities.