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Article

Effects of LED Light Quality on the Growth of Pepper (Capsicum spp.) Seedlings and the Development after Transplanting

College of Horticulture, South China Agricultural University, Guangzhou 510642, China
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Academic Editor: Youssef Rouphael
Agronomy 2022, 12(10), 2269; https://doi.org/10.3390/agronomy12102269
Received: 31 August 2022 / Revised: 18 September 2022 / Accepted: 19 September 2022 / Published: 22 September 2022
In this study, the effects of different light conditions on the growth of pepper seedlings and the development of these pepper seedlings after transplanting were explored. Based on the control light, pepper seedlings were grown under radiation with different proportions of added blue, UV-A, and far-red light for 18 days. Compared with the control, supplementation with UV-A and far-red light increased the seedling height whereas blue light decreased. Blue and UV-A treatments increased seedling compactness and the seedling index while far-red light treatments have obvious inhibitory effects. The chlorophyll content of the UV-A treated seedlings was significantly increased, but far-red light reduced the carotenoid content. Far-red light increased the activities of SOD and CAT and decreased the MDA content of seedlings. After transplanting, there was no obvious difference in the flowering time of all treated pepper plants. An increase in pepper yield was discovered when pepper seedlings were supplemented with blue and UV-A light. Overall, our results demonstrated that proper supplementation of UV-A and blue light at the seedling stage positively produces strong and healthy pepper seedlings, and could increase the yield of pepper plants after transplanting. View Full-Text
Keywords: growth; light spectra; pepper seedlings; the seedling index growth; light spectra; pepper seedlings; the seedling index
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MDPI and ACS Style

Liu, X.; Shi, R.; Gao, M.; He, R.; Li, Y.; Liu, H. Effects of LED Light Quality on the Growth of Pepper (Capsicum spp.) Seedlings and the Development after Transplanting. Agronomy 2022, 12, 2269. https://doi.org/10.3390/agronomy12102269

AMA Style

Liu X, Shi R, Gao M, He R, Li Y, Liu H. Effects of LED Light Quality on the Growth of Pepper (Capsicum spp.) Seedlings and the Development after Transplanting. Agronomy. 2022; 12(10):2269. https://doi.org/10.3390/agronomy12102269

Chicago/Turabian Style

Liu, Xiaojuan, Rui Shi, Meifang Gao, Rui He, Yamin Li, and Houcheng Liu. 2022. "Effects of LED Light Quality on the Growth of Pepper (Capsicum spp.) Seedlings and the Development after Transplanting" Agronomy 12, no. 10: 2269. https://doi.org/10.3390/agronomy12102269

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