Photon flux density and spectral properties of nine lighting treatments.

Lighting treatments consisted of blue (B, 400–500 nm), green (G, 500–600 nm), red (R, 600–700 nm), and far-red (FR, 700–800 nm) light delivered by light-emitting diodes. The value that follows each waveband indicates its photon flux density in μmol∙m−2∙s−1.

本实验的光照处理采用发光二极管（light-emitting diodes，LED）发出的蓝光（B，400~500 nm）、绿光（G，500~600 nm）、红光（R，600~700 nm）与远红光（FR，700~800 nm）。每个波段后紧随的数值代表其光子通量密度，单位为μmol·m⁻²·s⁻¹。