What is light intensity & photoperiod phenomenon

Light intensity is a physical term that refers to the energy that receives visible light per unit area.For grow lights, we can use PPFD (photosynthetic quantum flux density) to evaluate the effect of light intensity on plant growth. The higher the PPFD value, the more photons in the visible wavelength range obtained per unit area, the easier it is to reach the light saturation point of the plant, and the better the photosynthetic effect of the plant. Therefore, according to the different needs of plants for light intensity and photoperiod phenomenon, we must be targeted in the process of filling light for greenhouse plants.

So what is the photoperiod phenomenon? The photoperiod phenomenon refers to the ability of plants to respond accordingly according to periodicity, especially the change of light and darkness during the day and night, and the length of light and dark time, such as some flower plants can only grow flower buds after photoperiod. To this end, we can divide plants into long-day plants (yangsheng plants), medium-sunshine plants (mesophytic plants), and short-day plants (shade plants). In general, long-day plants require high PPFD values and shady plants have low PPFD values.

light intensity

For example, roses, moon seasons and other Rosaceae plants belong to long-day plants, and more light is conducive to the healthy growth of these plants; Mesophytic plants such as coconut and ficus can grow well in sufficient light or in a shaded environment; Orchids such as orchids prefer shady environments, and less light is more conducive to their growth.

In order to meet the lighting needs of different plants, LEDZEAL can produce different LED grow lights according to the plant needs of customers.

Post time: Oct-21-2022