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논문 기본 정보

자료유형
학술저널
저자정보
남상용 (삼육대학교) 김현진 (삼육대학교 대학원 환경원예학과) 이재환 (삼육대학교 자연과학연구소) 이재홍 (경기도농업기술원 선인장다육식물연구소) 고민성 (삼육대학교 환경원예학과)
저널정보
강원대학교 농업생명과학연구원(구 농업과학연구소) 농업생명환경연구 농업생명환경연구 제34권 제3호
발행연도
2022.12
수록면
354 - 367 (14page)

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Petrosedum rupestre is a succulent plant growing throughout Europe, except for Western Europe, and is one of the most preferred plants for rock gardens and green roof systems. P. rupestre has a beautiful blue appearance and may be used for medicinal purposes. This study was conducted to determine the optimal light conditions using white LEDs (light-emitting diodes) for indoor cultivation of P. rupestre and P. rupestre cv. Angelina (hereinafter referred to as ‘Angelina’) using three commercial white T5 LEDs with color temperatures of 3000, 4100, and 6500 K, respectively. Shoot length, fresh weight, moisture content, and CIELAB b* values increased under 3000 K white LED due to the relatively large ratio of red to blue wavelengths (approximately 3.3:1), whereas the CIELAB a* value decreased. The 4100 K white LED, in which the ratio of red to blue wavelength was lower by approximately 1.8:1, produced increased shoot width, plant ground cover, and number of branches. The RHS values of P. rupestre were N137D and 147A in the 3000 K white LED treatment, and ‘Angelina’ was evaluated as 146A and 148A in the same treatment, indicating that the leaf color was relatively yellow compared to other treatments. In the Pearson correlation coefficient, P. rupestre showed a positive correlation with fresh weight, and L* value was r = 0.510, and it was found that the more vigorous the plant growth, the higher the leaf lightness. Previous studies have shown that an increase in epicuticular waxes positively affects plant growth and development. Accordingly, epicuticular waxes on the surface of P. rupestre also seem to occur during vigorous plant growth. Taken together, the results suggest that 3000 K white LED is optimal for growing P. rupestre and ‘Angelina’ indoors, whereas 4100 K white LED is preferable for low growth with a creeping type.

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