Chen Xiao-li, Morewane M B, Xue Xu-zhang, Guo Wen-zhong, Wang Li-chun
Guang Pu Xue Yu Guang Pu Fen Xi. 2015 Feb;35(2):519-22.
Dandelion (Taraxacum mongolicum) was hydroponically cultured in a completely enclosed plant factory, in which fluorescence and LED emitting spectra of different bands were used as the sole light source for plant growth. Effects of spectral component on the growth of dandelion were studied and the contents of ten inorganic elements such as K, P, Ca, Mg, Na, Fe, Mn, Zn, Cu and B in dandelion were analyzed by ICP-AES technology. The results showed that: (1) Under the condition of similar photosynthetic active radiation (PAR), single R or combined spectrums of FLRB were beneficial for biomass accumulation, while single B was the contrary; (2) Macroelements content ratio in Taraxacum mongolicum grown under FLwas K:Ca:P:Mg : Na=79.74:32.39:24.32:10.55:1.00, microelements content ratio was Fe:Mn:B:Zn:Cu = 9.28:9.71:3.82:2.08:1.00; (3) Red light (peak at 660 nm) could promote the absorptions of Ca, Fe, Mn, Zn, while absorption of Cu was not closely related to spectral conditions; (4) Thehighest accumulation of Ca, Na, Mn and Zn were obtained in aerial parts of Taraxacum mongolicum plants grown under pure red spectrum R, while the accumulation of the rest six elements reached the highest level under the mixed spectrum FLRB.
将蒲公英（Taraxacum mongolicum）在完全封闭的植物工厂中进行水培，其中使用不同波段的荧光和发光二极管（LED）发射光谱作为植物生长的唯一光源。研究了光谱成分对蒲公英生长的影响，并采用电感耦合等离子体发射光谱（ICP-AES）技术分析了蒲公英中钾（K）、磷（P）、钙（Ca）、镁（Mg）、钠（Na）、铁（Fe）、锰（Mn）、锌（Zn）、铜（Cu）和硼（B）等十种无机元素的含量。结果表明：（1）在光合有效辐射（PAR）相似的条件下，单一红光（R）或荧光红蓝光组合光谱（FLRB）有利于生物量积累，而单一蓝光（B）则相反；（2）在荧光灯下生长的蒲公英中大量元素含量比例为K:Ca:P:Mg:Na = 79.74:32.39:24.32:10.55:1.00，微量元素含量比例为Fe:Mn:B:Zn:Cu = 9.28:9.71:3.82:2.08:1.00；（3）红光（峰值在660 nm）可促进钙、铁、锰、锌的吸收，而铜的吸收与光谱条件关系不密切；（4）在纯红光光谱（R）下生长的蒲公英植株地上部分钙、钠、锰和锌的积累量最高，而其余六种元素的积累量在荧光红蓝光组合光谱（FLRB）下达到最高水平。
