Light-emitting diode (LED) is a recent type of light source characterized by low energy consumption and high photoelectric conversion efficiency and can be used in modern smart agriculture. However, there are few published studies on the use of LED light, especially on blueberry (Vaccinium spp.), despite its importance in boosting the economies of many countries. Therefore, this study was aimed at assessing the effects of light quality on blueberry seedling tissue cultures morphological and physiological parameters with emphasis on the influence of different light wavelengths. In the research, we used white light (i.e., fluorescent lamp) and four treatments of composite LED light (blue wavelength [B]/red wavelength [R] = 1:2 [1B2R], B/R = 1:4 [1B4R], B/R = 2:1 [2B1R], B/R = 4:1 [4B1R]). The results showed that: the number of leaves, stem, and fresh weight increased when exposed to 2B1R; stem length, thickness, and fresh weight were higher in the 1B2R treatment; chlorophyll, carotenoid pigments, peroxidase, and superoxide dismutase were enhanced under treatment 1B2R; soluble sugar, anthocyanin, and proline were greater when exposed to 2B1R; soluble protein was higher with 1B4R; and malondialdehyde increased in the 4B1R treatment. Overall, it can be said that 1B2R LED lights enhanced the selected parameters in blueberry seedlings and can be used as the main light source in the cultivation of blueberry factory seedlings.

中文翻译：

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LED灯对蓝莓生长及生理指标的影响

发光二极管（LED）是一种新型光源，具有低能耗、高光电转换效率等特点，可用于现代智慧农业。然而，很少有关于使用 LED 灯的已发表研究，尤其是在蓝莓（Vacciniumspp.)，尽管它在促进许多国家的经济方面具有重要意义。因此，本研究旨在评估光质对蓝莓幼苗组织培养形态和生理参数的影响，重点关注不同光波长的影响。在研究中，我们使用了白光（即荧光灯）和四种处理的复合LED光（蓝色波长[B]/红色波长[R] = 1:2 [1B2R]，B/R = 1:4 [1B4R] ]，B/R = 2:1 [2B1R]，B/R = 4:1 [4B1R])。结果表明：2B1R暴露叶数、茎数和鲜重增加；1B2R处理的茎长、粗度和鲜重较高；叶绿素、类胡萝卜素色素、过氧化物酶和超氧化物歧化酶在 1B2R 处理下得到增强；可溶性糖、花青素、暴露于 2B1R 时，脯氨酸含量更高；1B4R 可溶性蛋白较高；和丙二醛在 4B1R 处理中增加。总体而言，可以说1B2R LED灯增强了蓝莓苗的选择参数，可以作为蓝莓工厂苗培育的主要光源。