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Light
Light Guide for Cannabis Growth
Light is a vital component in cannabis cultivation, affecting plant growth, flowering, and overall yield quality. Here's why and how to manage it during each growth stage:
Why light is important
Photosynthesis:
Light energy is converted into chemical energy, fueling plant growth and development.
Photoperiodism:
Light schedules regulate the transition from vegetative growth to flowering.
Chlorophyll Production:
Adequate light intensity promotes chlorophyll production, essential for photosynthesis.
Growth Regulation:
Light influences plant height and branching, impacting overall structure.
Cannabinoid and Terpene Production::
Proper lighting enhances the production of cannabinoids and terpenes, increasing potency and flavor.
Light Conditions per stage
During Germination
- Light: Minimal; focus on warmth.
- Lumens/PAR: Low lumens, minimal PAR.
- Importance: Supports initial root development.
During Seedling Stage
- Light: 16-18 hours per day, with blue spectrum emphasis.
- Lumens/PAR: 3,000-5,000 lumens/100-200 PAR.
- Importance: Encourages strong early growth.
During Vegetative Stage
- Light: 18-24 hours per day, high intensity with blue spectrum.
- Lumens/PAR: 15,000-50,000 lumens/400-600 PAR.
- Importance: Promotes robust leaf and stem growth.
During Pre-flowering Stage
- Light: Gradual reduction to 12 hours, full spectrum.
- Lumens/PAR: 25,000-50,000 lumens/400-600 PAR.
- Importance: Prepares for flowering by inducing hormonal changes.
During Flowering Stage
- Light: 12 hours, high intensity with red spectrum.
- Lumens/PAR: 25,000-50,000 lumens/600-900 PAR.
- Importance: Supports bud development and enhances bloom.
During Drying and Curing Stage
- Light: Minimal exposure.
- Lumens/PAR: Minimal.
- Importance: Prevents degradation, preserving potency and flavor.
By optimizing light conditions, growers ensure healthy growth, maximum yields, and high-quality cannabis.
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