κ΄ μ€ννΈλΌμ μλ¬Ό μμ₯ λ¨νμμ λ°©μΆλλ νμ₯μ λΆν¬λ₯Ό λνλ λλ€. PAR λ²μ(400β700 nm) λ΄μ μλ‘ λ€λ₯Έ νμ₯μ μλ¬Ό μ±μ₯μ μλ‘ λ€λ₯Έ μν₯μ λ―ΈμΉ©λλ€. μ²μ νμ₯(400β500 nm)μ μ½€ν©νΈν μμ μμ₯μ μ΄μ§νκ³ , μ μ νμ₯(600β700 nm)μ κ΄ν©μ±κ³Ό κ°νλ₯Ό μ΄μ§νλ©°, μμ μ νμ₯(700β800 nm)μ μ€κΈ° νμ₯ λ° κ·Έλ ννΌ λ°μμ μν₯μ λ―ΈμΉ©λλ€. ν μ€ννΈλΌ LEDλ μ¬λ¬ νμ₯μ κ²°ν©νμ¬ μμ° νλΉμ κ·Όμ¬νλ €κ³ μλν©λλ€.
μ£Όμ μ¬μ€
- Blue (400β500 nm): compact growth, thick leaves, strong root development
- Red (600β700 nm): peak photosynthetic efficiency, flowering trigger (short-day plants)
- Far-red (700β800 nm): stretching, canopy penetration, Emerson enhancement effect
- Green (500β600 nm): partially used by plants; penetrates deeper than red/blue
- Full-spectrum LEDs mimic natural sunlight; white LEDs use phosphor conversion
- Red:Blue ratio affects plant morphology β higher blue = more compact plants