Introduction : Selecting the appropriate spectrum for grow lights is a crucial decision for any grower, yet it often proves to be a challenging task. Manufacturers offer a variety of spectra for the same application or plant, leaving growers wondering how to make the right choice. In this article, we will explore the concept of spectrum, its impact on plant growth, and guide you through the process of selecting the right spectrum for your specific application.
Understanding Spectrum : In essence, a spectrum is a combination of different wavelengths of light. According to the McCree curve, plants primarily absorb light wavelengths ranging from 400 nm to 700 nm, known as the Photosynthetically Active Radiation (PAR) region. Recent studies indicate that plants also absorb wavelengths beyond 700 nm, up to 750 nm, and even between 350 nm to 400 nm (UV lights). Spectrum, therefore, represents the wavelengths that plants absorb for photosynthesis.
The term “full spectrum” is commonly used by manufacturers. Essentially, it encompasses wavelengths between 400 nm to 700 nm + Infrared (IR) above 700 nm + Ultraviolet (UV) below 400 nm. While plants absorb more light in the blue and red regions, relying solely on red and blue may not be the optimal choice for plant growth.
Impact of Spectrum on Plant Growth : Spectrum directly influences the morphology of plants, affecting their size, shape, and the production of secondary metabolites. In commercial growing, the spectrum can significantly impact the quality of plants. For instance, if you are cultivating medicinal plants for the pharmaceutical industry, adequate light intensity is crucial to grow plant. However, if you aim to enhance specific chemicals, focusing on the light spectrum becomes imperative. Certain combinations of wavelengths can trigger chemical reactions resulting in higher chemical yields. This has been successfully demonstrated in the cultivation of plants like cordyceps and vinca rosa. To know more about please refer – https://www.nexsel.tech/light-recipes-for-specific-medical-plants.php
Consider the example of tissue culture plant growers. If you cater to premium clients where the size, shape, and color of plants are paramount, selecting the right spectrum becomes essential. While any LED light with the right intensity may suffice for general growth, the choice of spectrum becomes critical when catering to clients who prioritize these aesthetic factors.
Choosing the Right Spectrum : The question remains: How does one choose the right spectrum? The answer lies in understanding your application. Consider what you are growing, your target market, the importance of plant quality, and your budget. Growing under any spectrum is possible if sufficient light intensity is provided. However, if you seek to optimize specific characteristics or chemical compositions, investing in a particular spectrum may be necessary, as it often involves additional research and development, translating to higher costs.
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Conclusion : In the realm of indoor cultivation, selecting the right spectrum for grow lights is a decision that goes beyond mere illumination. It directly influences the growth, quality, and chemical composition of plants. By understanding the concept of spectrum, its impact on plant growth, and the specific needs of your application, you can make informed choices that contribute to the success of your cultivation endeavors. Remember, the right spectrum is not a one-size-fits-all solution; it is tailored to the unique requirements of your plants and your goals as a grower.
In above article we tried to answer below question of growers.
How to chose right spectrum?
What is the spectrum?
How do I choose right spectrum for my indoor plants?
Why chasseing right spectrum is crucial?
Why do different spectra work for the same plants, and how do I choose the right spectrum for my application?
Best grow light spectrum?
Importance of spectrum for indoor plants?
Artificial lighting and its spectrum?
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Nexsel is a research-driven horticultural lighting manufacturer that provides LED grow lights for biotech and horticulture purposes.