PAR

PAR(κ΄‘ν•©μ„± 유효 볡사)은 식물이 광합성에 μ‚¬μš©ν•  수 μžˆλŠ” λΉ›μ˜ 파μž₯ λ²”μœ„(400 nm(보라색) ~ 700 nm(빨간색))μž…λ‹ˆλ‹€. PAR은 μΈ‘μ • λ‹¨μœ„κ°€ μ•„λ‹ˆλΌ μ •μ˜λœ μŠ€νŽ™νŠΈλŸΌ λ²”μœ„μž…λ‹ˆλ‹€. ν‘œλ©΄μ—μ„œμ˜ PAR λΉ›μ˜ κ°•λ„λŠ” PPFD(Β΅mol/mΒ²/s)둜 μΈ‘μ •λ©λ‹ˆλ‹€. PAR을 μ΄ν•΄ν•˜λŠ” 것은 식물 생μž₯등을 ν‰κ°€ν•˜λŠ” 데 κΈ°λ³Έμ μž…λ‹ˆλ‹€. PAR λ²”μœ„ λ°–μ˜ λΉ›(UV, 원적외선, 적외선)은 광합성에 같은 λ°©μ‹μœΌλ‘œ μ‚¬μš©λ˜μ§€ μ•ŠκΈ° λ•Œλ¬Έμž…λ‹ˆλ‹€.

μ£Όμš” 사싀

  • PAR range: 400–700 nm β€” visible light that drives photosynthesis
  • Blue light (400–500 nm): promotes compact vegetative growth and chlorophyll synthesis
  • Red light (600–700 nm): drives photosynthesis most efficiently; promotes flowering
  • Green light (500–600 nm): partially absorbed by plants; penetrates deeper into canopy
  • Far-red (700–800 nm): not classic PAR, but triggers shade avoidance and the Emerson effect
  • Lux and lumens measure light as perceived by the human eye β€” irrelevant for plant growth

κ΄€λ ¨ μš©μ–΄

← λͺ¨λ“  μ •μ˜
PAR β€” μš©μ–΄ 사전 | grow.food | grow.food