Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing 402160, People's Republic of China.
Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Chongqing 402160, People's Republic of China.
Life Sci Space Res (Amst). 2020 Aug;26:28-33. doi: 10.1016/j.lssr.2020.03.009. Epub 2020 Apr 28.
To increase efficiency, and reduce energy loss and waste, we propose to improve the photosynthetic action spectrum resemblance (SR) of LED light with the absorption spectra of the fresh leaf, for accelerating the growth of Chinese Cabbages. Eight spectral LED lights were adopted to irradiate Chinese Cabbages under 150 μmol•m s for a 16 hd photoperiod. Of these, under the irradiation of blue + broad red + more yellow (BRY) light with high spectrum resemblance of 75%, the fresh weight and dry weight are 5.1times and 3.0 times, respectively, and the leaf area and leaf number are 1.7 times, as high as under the blue light. The results demonstrate that the optimized LED light can be presumed to have the highest spectrum resemblance (SR) with the absorption spectra of Chinese Cabbages, and the highest energy-conversion efficiency. These conclusions may be of great benefit to further assess and find either an ideal light applied for plant growth or design of better light sources for growing different plants.
为了提高效率，减少能量损失和浪费，我们建议提高 LED 光的光合作用光谱相似性（SR）与新鲜叶片的吸收光谱，以加速中国白菜的生长。采用了 8 种光谱 LED 灯，在 150 μmol•m•s 的光照下，以 16 h 的光周期照射中国白菜。其中，在光谱相似性为 75%的高蓝光+宽红光+更多黄光（BRY）照射下，鲜重和干重分别是蓝光照射下的 5.1 倍和 3.0 倍，叶面积和叶数分别是蓝光照射下的 1.7 倍。结果表明，优化后的 LED 光与中国白菜的吸收光谱具有最高的光谱相似性（SR）和最高的能量转换效率。这些结论可能有助于进一步评估和寻找理想的植物生长用光源，或设计更好的光源来种植不同的植物。
