Yellowish Green 560nm 575nm 0.5W 2835 SMD LED

While red (660 nm) and blue (450 nm) lights are the most commonly emphasized wavelengths for plant growth, 570 nm light (yellow-green region) also plays important supporting roles in horticulture. Here's why:

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🌿 Why 570 nm Light Matters for Horticulture:

1. Completes a Balanced Full Spectrum

Plants use light from 400–700 nm for photosynthesis (known as PAR – Photosynthetically Active Radiation).

While red and blue are most efficiently absorbed by chlorophyll, green-yellow wavelengths (including 570 nm) penetrate deeper into the plant canopy.

This allows lower leaves to receive light, promoting overall plant health and uniform growth.

🔎 Key Point: Red and blue light are absorbed near the leaf surface; 570 nm helps reach deeper layers.

Above: 565nm 575nm yellowish green color lighting on effect

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2. Supports Photomorphogenesis

570 nm light influences plant shape, leaf size, and stem elongation through photoreceptors like cryptochromes and phototropins.

It affects how plants respond to shading, stretch toward light, or develop compactness, especially in controlled environments.

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3. Improves Visual Working Conditions in Grow Rooms

Horticulturists working under full-spectrum light (including 570 nm) see plants in natural color, which helps with:

Disease and pest detection

Judging ripeness or nutrient deficiencies

General plant inspection

🔎 Monochromatic red/blue light can distort plant appearance, while 570 nm restores realism.

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4. Synergistic Effect with Other Wavelengths

Studies suggest that including green-yellow light (500–600 nm), such as 570 nm, with red and blue can:

Boost biomass accumulation

Improve photosynthetic efficiency at the whole canopy level

Enhance the spectral quality for specific growth stages

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5. Beneficial for Certain Plant Species

Some crops (e.g., lettuce, basil, cannabis) respond better to full-spectrum or "white + narrowband additive" lighting that includes 570 nm.

Greenhouse LED fixtures often include 570 nm as part of tunable white or full-spectrum configurations.

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🌈 Summary Table:

Wavelength	Main Function in Plant Growth
450 nm (Blue)	Vegetative growth, leaf structure
570 nm (Yellow-Green)	Canopy penetration, photomorphogenesis, spectrum balance
660 nm (Red)	Flowering, fruiting, biomass
730 nm (Far-Red)	Shade avoidance, stem elongation

 

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✅ Conclusion:

Although 570 nm light is not the primary driver of photosynthesis, it is important for a complete lighting strategy, especially for deep canopy penetration, growth uniformity, and realistic spectrum perception. Smart growers and LED manufacturers now include it to enhance plant quality and optimize yield.