| Abstract: In order to cultivate strong vegetable seedlings and reduce the energy consumption of plant factory system, the vegetable grafting healing process and its light environment regulation mechanism were studied, the main application and development trends of vegetable grafting healing process and light environment regulation in the production process of grafted seedlings were summarized, and the influencing factors of grafting healing process were analyzed, such as internal factors of cultivar compatibility, seedling age and section size, and external factors of temperature, air humidity, light intensity, concentration of CO2 and microelements. The regulation mechanism of three main light environment factors (light cycle, light intensity and light quality) on grafted seedlings was summarized. It was found that different pigments in plants could produce a series of biochemical reactions by absorbing light energy of different bands. The regulation of light environment could affectthe growth and development of grafted seedlings in many ways. In the future, it will be committed to
the precise and intelligent research of light regulation. |