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Spectrum-Outcome Correlations

Understand how light spectrum parameters drive plant chemistry, nutrition, and yield.

Spectrum Analysis Recipe Library

Crop:

Recipes Analyzed

6 new this month

Spectrum Variables

Blue, Red, Far-Red, UV, DLI, Photoperiod

Outcome Metrics

Across 4 categories

Strong Correlations

r > 0.7 significance

Key Research Insights

nutritional

+38%

Blue Light Drives Nutrient Density

Spectra with 45-55% blue consistently produce 25-40% higher vitamin K and chlorophyll in leafy greens. The effect is strongest at DLI 14-17.

Vitamin K at 55% blue

terpenes

+52%

UV-A Boosts Terpene Production

UV supplementation (8-12%) during flowering increases total terpene content by 30-65%, with limonene and linalool showing the strongest response.

Total terpenes at 10% UV

cannabinoids

26.1%

Far-Red Ratio Controls THC Potency

Higher R:FR ratios during flower (65:15 red:far-red) correlate with peak THC. End-of-day far-red pulses can increase THC by 8-12% without reducing yield.

Peak THC at 70:18 R:FR

yield

-42%

High Blue Compacts Internodes

Blue-dominant spectra (>40%) reduce internode spacing by 35-50%, producing denser, more compact plants ideal for vertical farming.

Internode spacing at 50% blue

yield

9.2

DLI Threshold for Flower Density

Cannabis flower density peaks at DLI 40-45. Beyond DLI 50, marginal returns diminish while energy costs increase 20%+.

Peak density score at DLI 40

nutritional

+67%

UV Stress Increases Antioxidants

Controlled UV-B stress (12-15%) triggers defensive compound production, increasing antioxidant levels by 40-75% in strawberries and basil.

Antioxidants at 15% UV

Spectrum Parameter Impact Matrix

Spectrum Parameter	THC	Terpenes	Vitamins	Biomass	Density
Blue % (400-500nm)
Red % (600-700nm)
Far-Red % (700-800nm)
UV % (280-400nm)
DLI (mol/m²/d)
Photoperiod (h)

Strong correlation Moderate Weak

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Key Research Insights

nutritional

+38%

Blue Light Drives Nutrient Density

Spectra with 45-55% blue consistently produce 25-40% higher vitamin K and chlorophyll in leafy greens. The effect is strongest at DLI 14-17.

Vitamin K at 55% blue

terpenes

+52%

UV-A Boosts Terpene Production

UV supplementation (8-12%) during flowering increases total terpene content by 30-65%, with limonene and linalool showing the strongest response.

Total terpenes at 10% UV

cannabinoids

26.1%

Far-Red Ratio Controls THC Potency

Higher R:FR ratios during flower (65:15 red:far-red) correlate with peak THC. End-of-day far-red pulses can increase THC by 8-12% without reducing yield.

Peak THC at 70:18 R:FR

yield

-42%

High Blue Compacts Internodes

Blue-dominant spectra (>40%) reduce internode spacing by 35-50%, producing denser, more compact plants ideal for vertical farming.

Internode spacing at 50% blue

yield

9.2

DLI Threshold for Flower Density

Cannabis flower density peaks at DLI 40-45. Beyond DLI 50, marginal returns diminish while energy costs increase 20%+.

Peak density score at DLI 40

nutritional

+67%

UV Stress Increases Antioxidants

Controlled UV-B stress (12-15%) triggers defensive compound production, increasing antioxidant levels by 40-75% in strawberries and basil.

Antioxidants at 15% UV

Spectrum Parameter

THC

Terpenes

Vitamins

Biomass

Density

Blue % (400-500nm)

Red % (600-700nm)

Far-Red % (700-800nm)

UV % (280-400nm)

DLI (mol/m²/d)

Photoperiod (h)