Master the sunlight characteristics that affect the flowering of orchids and improve the value of orchids.

First of all, the first optical property that affects the growth and flowering of orchids is light quality.

First of all, let's analyze what is light quality.

Light quality refers to the soft and hard nature of the light used for shooting. It can be divided into hard light and soft light.

Hard light is intense direct light, such as sunshine on a sunny day, spotlights in artificial lights, and so on.

Soft light is a kind of diffuse light with no clear direction and no obvious shadow on the illuminated object. Such as sunlight in fog, floodlights and so on.

The sunlight spectrum includes ultraviolet light, visible light, near-infrared light and far-infrared light. The energy released is related to the wavelength, the shorter the wavelength, the stronger the energy of light, such as ultraviolet light; the longer the wavelength, the weaker the energy, such as red light. The proportion measurement of light quantity at different wavelengths requires the use of a complex spectrometer.

The ratio of far infrared light energy to red light energy affects the stem elongation, and the orchid under strong light is very obvious in this aspect. Plants can effectively filter out red light, penetrate or reflect far red light, so in plants under shade, the energy ratio of red light to far red light decreases, prompting plants to overgrow.

Secondly, the first optical property that affects the growth and flowering of orchids is photoperiod.

Photoperiod refers to the alternating change of the length of light period and dark period in the day and night cycle. The photoperiod phenomenon is the response of organisms to the light and dark cycle pattern of day and night. The flowering of most annual plants depends on the amount of sunshine each day. In addition to flowering, root and tuber formation, leaf shedding and bud dormancy are also controlled by photoperiod (the relative length of day and night in a day). The physiological response of plants to periodic light and dark changes, especially between day and night and the length of light and dark time. Especially the phenomenon that some plants need to go through a certain photoperiod to form flower buds. But other physiological activities are also affected by photoperiod.

The photoperiod required for orchids varies with orchid strains and varieties, and some orchids can only blossom under short-day conditions, such as Calderia orchid, Dendrobium orchid and Phalaenopsis. For orchids that bloom in winter when the sunshine period is very short, prolonged light can inhibit their flowering. However, continuous light can damage plants, so there should be a dark period of at least 6 hours a day.

Third, the first optical property that affects the growth and flowering of orchids is the amount of light.

The amount of light is calculated in two units, the sum of instantaneous measurements and daylight measurements throughout the day. The corresponding units of solar light are the amount of sunlight and the hours of sunshine.

The light quantity units used in greenhouse production are lux and μ mol/ m2 s. Another unit of energy, w/m2, is used to represent the energy entering the greenhouse. The conversion of light units is very important, especially when the light quantity units are not unified, different technical data use different units, which need to be exchanged before they can be applied.

Orchid production needs to pay attention to the amount of light. The amount of light is too low, the orchid can not blossom, and the new leaves are weak; if the amount of light is too strong, the leaves will be scorched, produce spots and lose the ability of photosynthesis, and too strong light will also cause petals to produce spots and flowers to deform.

In order to reduce the amount of sunlight entering the greenhouse, a shading net can be used with an automatic control system, but pay attention to whether the internal and external shading net blocks some special spectra, which may lead to a decline in the quality of orchids.

The main lighting factors that affect the growth and flowering of orchids are these three. I believe that as long as they master these three tips, the majority of florist friends can control the growth and flowering time of orchids at will, so that orchids can be listed in accordance with seasons and festivals, raising the price of orchids and selling them at a better price.