생물환경조절학회지(구 시설원예ㆍ식물공장) Vol.31 No.2 (p.104-113)

LED 광질이 바위솔과 자질연화바위솔의 생장과 엽색에 미치는 영향

Effects of LED Light Quality on the Growth and Leaf Color of Orostachys japonica and O. boehmeri
키워드 :
CIELAB,growth evaluation,medicinal plants,plant factory,succulent

목차

Abstract
서 론
재료 및 방법
   1. 식물재료
   2. 재배조건
   3. LED 처리
   4. 조사항목
   5. 통계처리
결과 및 고찰
   1. LED 광질이 생장에 미치는 영향
   2. LED 광질이 엽색에 미치는 영향
   3. 생장과 엽색 간 상관관계 분석
적 요
사 사
Literature Cited

초록

Plants under the genus Orostachys have been known as medicinal plants. This study deems to determine the growth and leaf color of Orostachys japonica and O. boehmeri when subjected to various LED light sources. A total of seven LED light treatments were used, i.e. red (630 nm), green (520 nm), blue (450 nm), purple (650 and 450 nm), 3000 K white (455, 600 nm), 4100 K white (455, 590 nm), and 6500 K white (450, 545 nm) LEDs. Results showed that O. japonica plants showed favorable growth under 4100 K white LED, while O. boehmeri plants had a positive growth response under white light LEDs (3000, 4100, and 6500 K). In leaf color analysis, the use of green LED showed the greatest change in CIELAB L * and b * values which were relatively higher compared to other treatments indicating that leaves turned yellowish. Further statistical analysis using Pearson’s correlation also suggested that there is a small negative association between dry weight and b * values of O. japonica, and a negative moderate association between plant weights (fresh and dry weight) and leaf color (L * and b * ) and positive association between said plant weights and a * color values of O. boehmeri. Therefore, it is recommended to cultivate O. japonica under 4100 K white LED and O. boehmeri under 3000, 4100, 6500 K white LEDs.