8/17/2023 0 Comments Indoor grow lights for seedlingsIn order to absorb light for photosynthesis, plants need the help of cells known as ‘photopigments.’ Plants have six photopigments but of these, the photopigments Chlorophyll A and Chlorophyll B are by far the most abundant and subsequently the most important.īoth Chlorophyll A and Chlorophyll B absorb light with the highest efficiency in the blue (in particular 439nm and 469nm) and red (in particular 642nm and 667nm) wavelengths. Plants have no use for green light and instead reflect it, which is why our human eyes see an abundance of green out there in the natural world. This specific wavelength range, which is often referred to as Photosynthentically Active Radiation (or PAR for short) falls within the 400 nanometer (nm) to 700nm wavelengths.Īll light emitted between 400nm to 700nm can be absorbed by plants and utilized for photosynthesis, with the exception of green light (that has a wavelength of about 510nm). Plants can only utilize certain wavelengths of light emitted by the sun. Taking our scientific understanding of how plants utilize light, the horticultural industry has developed specific grow lights that are designed to output the exact light plants need. The good news is technology and science have given us the ability to grow amazing plants in an artificial setting such as inside your home. However, when the natural route isn’t an option, the artificial route will have to do. Natural sunlight has grown amazing plants outdoors since the dawn of time. This is the wonderful world of horticultural lighting – so let’s take a look at how we’ve learned to combine science with nature. Luckily, science has taught us exactly how plants utilize and respond to light, allowing growers to create optimum lighting conditions in their homes and cultivate great plants indoors. Without enough light at their disposal plants will soon perish – and that’s something no gardener likes to see. Without it, they cannot carry out photosynthesis and produce the energy needed to grow and develop. Organic seedlings in natural window light.
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