Horticulture, Environment, and Biotechnology : HEB

Korean Society of Horticultural Science (한국원예학회)
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Effect of Red, Blue, and Far-red LEDs for Night Break on Growth, Flowering, and Photosynthetic Rate in Perilla ocymoides

적색, 청색 및 원적색 LEDs를 이용한 광중단 처리가 들깨의 생장,개화및 광합성에 미치는 영향

Choi, Young-Hwan
최영환

  • Published : 20030000
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Abstract

The effects of red, blue and far-red LEDs for night break on the growth, flowering, and photosynthetic rate of leafy perilla (Perilla ocymoides L. cv. Ipdlggae 1) were measured to obtain basic data for leaf growth increase and flowering delay in a greenhouse in winter. Red LEDs gave the most effective night break for growth of stem and leaf, and followed by blue LEDs, far-red LEDs, and dark. Red LEDs produced higher number, area, fresh and dry weights of leaves. Red LEDs did not initiate flowering up to 120 days after night break, and the rate of flowering was 84% in dark, 94% in far-red, and 54% in blue LEDs night break. The higher photosynthetic rate was observed with red LEDs and followed by blue and far-red LEDs for the night break and dark

겨울철 하우스에서 채엽용으로 많이 재배되고 있는 잎들깨의 개화를 지연시키고, 수량을 증대시킬 수 있는 방법을 개발하기 위하여 적색, 청색 및 근적색 LEDs를 이용한 광중단 처리와 야간의 완전 암 처리가 잎들깨의 생장, 개화 및 광합성에 미치는 영향을 조사하였다. 줄기의 생장은 적색광으로 광중단 처리를 하였을 때에 가장 촉진되었고, 다음은 청색광이었는데, 원적색광이 야간의 완전 암보다는 현저히 높았다. 잎수, 엽면적 및 잎의 생체중과 건물중은 적색 광중단 처리 시에 가장 좋았다. 개화 개시일은 원적색 광중단 처리는 약 54일, 야간의 완전 암은 60일, 청색광은 75일 후부터 개화하기 시작하였으나, 적색광은 120일 후에까지 전혀 개화하지 않았다. 광중단 처리 120일 후의 개화율은 원적색광에서 94%, 야간의 완전 암에서 84%, 청색광에서 54%였으나, 적색광에서는 0%였다. T/R률은 생장이 가장 왕성하였던 적색 광중단 처리가 531로서 가장 낮았고, 다음은 청색광이었으며, 야간의 완전 암 및 원적색 광중단 처리가 가장 높았다. 광합성률은 적색 광중단 처리에서 가장 높았으며, 다음은 청색광이었으며, 원적색광과 야간의 완전 암에서 가장 낮았다.

Keywords

References

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