Improving "color rendering" of LED lighting for the growth of lettuce.

ABSTRACT: Light plays a vital role on the growth and development of plant. On the base of white light with high color rendering to the benefit of human survival and life, we proposed to improve "color rendering" of LED lighting for accelerating the growth of lettuce. Seven spectral LED lights were adopted to irradiate the lettuces under 150 μmol·m^-2·s^-1 for a 16 hd^-1 photoperiod. The leaf area and number profiles, plant biomass, and photosynthetic rate under the as-prepared LED light treatments were investigated. We let the absorption spectrum of fresh leaf be the emission spectrum of ideal light and then evaluate the "color rendering" of as-prepared LED lights by the Pearson product-moment correlation coefficient and CIE chromaticity coordinates. Under the irradiati

SUBMITTER: Han T 

PROVIDER: S-EPMC5377472 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature