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- Title
Light quality affects the growth and antioxidant activity of Forsythia saxatilis in cutting propagation.
- Authors
Yoon, A Ra; Oh, Hyeon Eui; Park, Yoo Gyeong
- Abstract
Forsythia saxatilis is an endangered species endemic to Korea. Here, we determined the effects of light quality on the growth and antioxidant activity of F. saxatilis. Six different light conditions were used: white (W10, control); combined light-emitting diodes (LED) of white (W) and far-red (Fr) at 10:1 (W10Fr1); combined LED of red (R) and blue (B) at 5:5 (R5B5); combined LED of R and B at 7:3 (R7B3); combined LED of R, green (G), and B at 7:1:2 (R7G1B2); and a combined LED of R, G, B, and Fr at 7:1:2:1 (R7G1B2Fr1). Forsythia saxatilis shoot formation was the highest with R7G1B2 at 89%, whereas the greatest growth-promoting effects—that is, increase in plant height, leaf length and width, and fresh and dry weights of shoots and roots—were achieved with W10Fr1. The total phenol and flavonoid contents were the highest with R7B3. The activities of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) were the highest with R7B3 treatment. In summary, W10Fr1 treatment was found to be the most effective for the growth of F. saxatilis, whereas R7B3 was confirmed to be the most effective for maximizing antioxidant activity.
- Publication
Plant Growth Regulation, 2023, Vol 99, Issue 2, p205
- ISSN
0167-6903
- Publication type
Article
- DOI
10.1007/s10725-022-00876-z