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논문 기본 정보

자료유형
학술저널
저자정보
남상용 (삼육대학교) 이재환 (삼육대학교 자연과학연구소)
저널정보
강원대학교 농업생명과학연구원(구 농업과학연구소) 농업생명환경연구 농업생명환경연구 제34권 제3호
발행연도
2022.12
수록면
413 - 424 (12page)

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Phedimus takesimensis is a succulent species indigenous to the Korean Peninsula and is found in Ulleungdo and Dokdo islands. It has potential medicinal properties; thus, it should be protected in South Korea. However, the optimal shading level for mass cultivation of P. takesimensis is unknown. In this study, we subjected P. takesimensis cv. Atlantis, a variegated leaf cultivar, to different shading levels (0, 35, 45, 60, 75, and 99%) and investigated its effect on the growth and leaf color of the plants. The results revealed that the potted plants grown under 45% shading exhibited the highest shoot length, width, and shoot fresh and dry weights. Moreover, the plants grown under 0-45% shading exhibited the highest root length and root fresh and dry weights. However, leaf length and width were higher in the plants grown under 35-60% shading, and the moisture content of the shoot and root was the highest in the plants grown under 60% and 75% shading, respectively. Chlorophyll content analysis revealed a subsequent increase as the shading level decreased; the L* and b* CIELAB values were higher as the shading levels increased. The CIE76 color difference (ΔE* ab) was the highest at 75% shading (ΔE* ab = 7.08) compared to that at 0% shading level. The plants that were grown under 0-45%, 60%, and 75% shading had the following RHS values: 147B and 148A; 147B and 148B; and 147C and 148B, respectively. This suggests that the leaves of the plants were relatively yellow at 60-75% shading. Thus, potted plants of P. takesimensis cv. Atlantis should be grown under 45% shading to attain a significant increase in plant size and improve leaf color.

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