Abstract

The effect of artificial light with different spectral compositions (white, WW; white–red, WR; white–blue, WB; and white–red—blue, WRB) on the wet weight, plant height, total leaf surface area, variable fluorescence parameters of photosystem 2 (PS2), and the content of the total fraction of essential oils in 30‑ and 50-day-old Cinnamon Aroma basil plants was studied. Thirty-day-old basil plants adapted to WB light were characterized by the highest chlorophyll content and the highest value of the photochemical quenching coefficient of PS2 fluorescence but by the smallest wet weight and total leaf surface as compared to plants grown in light with a different spectral composition. A longer adaptation (50 days) of the basil to illumination of a different spectral composition at the same intensity led to plant alignment in terms of chlorophyll content and height. A positive correlation was found between changes in the photochemical quenching coefficient of PS2 fluorescence and wet weight in 50-day-old plants. Fifty-day-old plants grown in light with a high proportion of red radiation (WR and WRB) and having generative shoots with buds contained the largest amount of the total fraction of essential oils.

中文翻译：

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光照质量对罗勒花生物量，光系统2荧光和总精油含量的影响

摘要

人工光具有不同的光谱成分（白，WW；白红，WR；白蓝，WB；白红蓝，WRB）对湿重，植物高度，总叶表面积，可变荧光的影响研究了光系统2（PS2）的参数，以及30天和50天的肉桂香薰罗勒植物中精油总含量的含量。与在不同光照条件下生长的植物相比，适应WB光的三十日龄罗勒植物具有最高的叶绿素含量和最高的PS2荧光光化学猝灭系数值，但其湿重和总叶面最小。光谱组成。罗勒在相同强度下适应不同光谱组成的照明的更长适应期（50天）导致植物的叶绿素含量和高度一致。在50天龄的植物中，PS2荧光的光化学猝灭系数的变化与湿重之间存在正相关关系。在具有高比例的红色辐射（WR和WRB）的光线下生长且具有带芽的生成芽的五十日龄植物所含的精油总量最大。