Light is a crucial element for plant growth and production. High-pressure sodium (HPS) lamps are considered not very electrically efficient as they generate high radiant heat, and as a consequence, there has been a lot of interest in replacing HPS lamps with new more efficient lighting sources in the form of light-emitting diodes (LEDs). LEDs have a linear photon output with the electrical input current, and this great feature allows the design of lighting arrays that match the plant’s needs. In the current study, light spectrum absorbance of pigments extracted from 14 plant species was analyzed. Two absorbance peaks were observed in the Photosynthetically Active Radiation (PAR) region: one at 435 nm and the other at 665 nm. The light spectrum array was designed to produce the spectrum absorbed by basil pigments. This included the use of new wavelengths of 435 ± 5 nm to cover the blue region. Moreover, the ratio between blue and red was considered to match the absorbance of basil pigment. The use of a light spectrum that matches the plant absorbance significantly improved the investigated physiological parameters and increased the growth yield of basil. Moreover, this is the first to confirm the great positive impact of using 435 nm light spectrum in comparison with the commercially widely used 450 nm LED spectrum. This investigation has great scientific and commercial applications in the field of indoor faming and plant factory systems.

中文翻译：

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一种新颖的新光食谱显着提高了植物工厂系统中种植的罗勒（Ocimum basilicum）的生长和产量

光线是植物生长和生产的关键元素。高压钠（HPS）灯会产生高辐射热量，因此在电气上效率不高，因此，人们非常关注用发光形式的新型更高效的光源代替HPS灯二极管（LED）。LED具有带有输入电流的线性光子输出，这一强大功能允许设计符合工厂需求的照明阵列。在当前的研究中，分析了从14种植物中提取的色素的光谱吸收率。在光合有效辐射（PAR）区域观察到两个吸收峰：一个在435 nm，另一个在665 nm。光谱阵列被设计为产生罗勒颜料吸收的光谱。这包括使用新的435±5 nm波长覆盖蓝色区域。此外，蓝色和红色之间的比例被认为与罗勒色素的吸收率相匹配。与植物吸收率匹配的光谱的使用显着改善了所研究的生理参数并提高了罗勒的生长产量。而且，这是第一个确认使用435 nm光谱与商业上广泛使用的450 nm LED光谱相比具有巨大积极影响的方法。这项研究在室内装饰和植物工厂系统领域具有重大的科学和商业应用。与植物吸收率匹配的光谱的使用显着改善了所研究的生理参数并提高了罗勒的生长产量。而且，这是第一个确认使用435 nm光谱与商业上广泛使用的450 nm LED光谱相比具有巨大积极影响的方法。这项研究在室内装饰和植物工厂系统领域具有重大的科学和商业应用。与植物吸收率匹配的光谱的使用显着改善了所研究的生理参数并提高了罗勒的生长产量。而且，这是第一个确认使用435 nm光谱与商业上广泛使用的450 nm LED光谱相比具有巨大积极影响的方法。这项研究在室内装饰和植物工厂系统领域具有重大的科学和商业应用。