How Does Each Light Spectrum Affect Plant Growth?
by Admin
Posted on 14-10-2022 11:41 AM
Nasa has done extensive work on the
light
used by plants and they have determined the following.
Red light (630 -660 nm) is essential for the growth of stems, as well as the expansion of leaves. This wavelength also regulates flowering, dormancy periods, and seed germination. Blue light (400 -520 nm) needs to be carefully mixed with light in other spectra since overexposure to light in this wavelength may stunt the growth of certain plant species. Light in the blue range also affects the chlorophyll content present in the plant as well as leaf thickness. Green light (500 – 600 nm) penetrates through thick top canopies to support the leaves in the lower canopy.
Intensity describes the amount of light that reaches a surface at given distance from the light source. A super-bright bulb that's 12" from a surface might, for example, provide the same light intensity as a dimmer bulb that's 2" from the surface. Duration describes the number of hours of light a plant receives in a 24-hour period. We can control it by turning lights on and off or, more easily, with a programmable timer. Color describes the visual appearence of light. Most grow lights provide full-spectrum light. Most of the light plants use is from the blue ("cool") and red ("warm") ends of the spectrum; they use little yellow and green light.
The goleaf e2 led plant light provides coordinated light for optimal vegetative plant growth, for example for vegetables, salads and flowers. Thanks to the full spectrum with white light component, it can also be used as a sole light source without daylight. The plant light is easy to install and does not need to be opened for connection. The use in the greenhouse, basement, etc. Is possible without hesitation thanks to the splash water protection. - beam angle: 120 - ambient temperature: - 30 to + 45 °c - minimum distance from the plant: 20 cm.
The red/blue and migro (3500k) spectrum are best for balancing yield and short stem length green light and red light are closely matched for photosynthetic efficiency (within 5%) you need at least 12% blue light to prevent stretching as you increase blue light over 15% the stem length reduces but yield also reduces the experiments have shown that a mix of spectrum is best. From the mixed spectrum you can chose to target shorter plant height or higher growth rate. This can be a matter of preference as to what suits your situation. For example if you have a small space you may wish to sacrifice a little yield so that your plants stay short with dense growth.
How to Use Light Spectrum for Plants?
Spectrum x is one of the most advanced multi-bar led grow light for indoor plants.
It delivers powerful 2200 μmol/s ppf output in the 880 watt class and high-efficacy 2. 8 μmol/j that helps you effectively optimize plant growth, enhances the quality and cuts operational costs. The body of the light is crafted from the strongest grade aluminum alloy and engineered for maximum durability. The integrated led display shows the selected spectrum, actual wattage, ppf value and more! there are two turning knobs placed on top of the screen. Twisting left will set the lighting schedule to 6/12/14/ 16/18hrs per day, turning right will adjust the brightness at your desired level from 100% -30%.
For plants to be stimulated to photosynthesis by artificial lighting, special lights are needed. The most important difference between an ordinary lamp and a plant lamp is the colour spectrum, i. E. The composition of the light. Natural daylight contains all wavelengths. Plants mainly need blue and red light. Grow lights have increased red and blue components, which is why they have a violet glow. As in other areas of artificial lighting, many plant lamps are now powered by led, which means that even with longer lighting times, your electricity costs stay low.