Science for Commercial Plant Growth | Vipple
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Helping you understand the science behind these terms and how to choose the suitable lights for your plants.

PHOTOSYNTHESIS IN PLANTS

All living things require food: humans and plants eat other animals or food, but plants cannot eat like humans and animals. Plants obtain food by preparing it on their own by a process called photosynthesis.

Therefore, the most important process triggered by light in plants is photosynthesis. The faster the photosynthetic rate, the faster the plant grows. The rate of photosynthesis is impacted mostly by the light intensity and quality. There are 2 key factors that impact the photosynthesis rate: Light intensity and spectrum.

WHAT ARE LED GROW LIGHTS?

We know that light is responsible for driving plant growth via photosynthesis. LED grow lights​ mimic natural sunlight by using LED chips in a modern and efficient way, helping your plant growth and producing an earlier and longer harvest. Plus, it provides a broad spectrum similar to that of the sun, and thus stimulates photosynthesis.

HOW DO I CHOOSE?

With so many types of LED grow lights on the market, it could be overwhelming to find out which one will best suit your needs. Here's a good rule of thumb:

  • PAR /PPF/PPFD Value

    3 types of measurement are commonly used in electrical lighting to determine the proper light levels to grow plants.

  • PAR

    (Photosynthetic Active Radiation)

    is the amount of light that your plants absorb for photosynthesis. PAR light is the wavelengths of light within the visible range of 400 to 700 nanometers (nm).

  • PPF

    (Photosynthetic Photon Flux)

    measures the total amount of PAR produced by the light source each second. It is an important metric that tells you how efficient a lighting system is at creating PAR.

  • PPFD

    (Photosynthetic Photon Flux Density)

    is a measurement of the amount of light (photons within PAR) that actually reaches your plants each second. It lets you know how much of the light is effective for the plants.

Spectrum in Grow Lights

Full spectrum LED grow light is the second to none option to help your plant grow to its potential. Photosynthesis only responds to the spectral range of 400nm and 700nm. Plants can still sense the wavelengths ranging from UV-C (260 nm) to far-red (730 nm).

For example, ultraviolet light and infrared light have been proven to be critical parts of the growth process, as they ensure the pests and bacteria are kept under control.

Depending on the crop you are producing, selecting an LED grow light can help you achieve your desired outcome.

Light Intensity

Light intensity influences the manufacture of plant food, stem length, leaf color and flowering. Basically, your plants tend to grow faster, healthier in higher light intensity.

In terms of light intensity levels - how bright the light is, or how much energy in the form of photons is falling on the leaf, it may have a significant effect on photosynthesis rates. The higher the light intensity, the more rapid this process can proceed. Thus, your plants can thrive.

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