생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제17권2호
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  • Pages.132-137
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  • 2008
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
권호 표지

광보상점 이하의 보광이 절화장미 'Vital'의 생육에 미치는 영향

Effect of Supplemental Lighting of Sub-Compensation Intensities on Growth of Rosa hybrida L. 'Vital'

  • 발행 : 2008.06.30
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초록

동계 절화장미 'Vital'재배시 보광이 장미의 생육과 절화수량에 미치는 영향을 구명코자 하였다. 보광 광원은 250W의 메탈할라이드등, 고압나트륨등 및 혼합(메탈할라이드등+고압나트륨등)등을 베드 위 120cm 높이에 $310cm{\times}450cm$로 설치하였다. 보광등에서 1m 떨어진 지점의 광도는 $32{\sim}34{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$였다. 보광구는 무처리구에 비해 개화소요일수가 1번화는 $5{\sim}8$일, 2번화는 $3{\sim}5$일 단축되었다. 보광구 간에는 혼합등이 개화소요일수가 가장 짧았고, 고압나트륨등, 메탈할라이드등 순 이었으나 차이가 크지 않았다. 생육도 보광구가 무처리구에 비해 좋았다 특히 블라인드 발생이 $5{\sim}7%$ 감소되어 절화수량 증가의 주 요인이었다. 보광구간에는 혼합등이 가장 좋았고, 메탈할라이드등, 고압나트륨등 순 이었으나 큰 차이는 없었다 결론적으로, 보상점보다 낮은 광도의 보광도 개화소요일수 단축 및 블라인드 발생억제에 효과적이었다.

This experiment was conducted to investigate the effect of supplemental lighting of low light intensities on growth and yield of rose 'Vital' in a forcing culture. Metal halide lamp (MH), High pressure sodium lamp (HSP), and MH+HSP were used as the light sources, and they were set up at a $310\;cm{\times}450\;cm$ interval and at 120cm above the culture beds. Light intensity at 1m point distance from supplemental lighting sources was $32{\sim}34\;{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$. Days to the 1st and 2nd harvests decreased by $5{\sim}8$ and $3{\sim}5$days, respectively in supplemental lighting treatment as compared to the control. Days to harvesting was the shortest in MH+HPS treatment, followed by BPS and MH, although there was no significant difference between HPS and MH treatments. The growth was better and incidence of blind shooting decreased by $5{\sim}7%$ in supplemental lighting treatments than the control, increasing marketable cut flowers. The incidence of blind shoot was the lowest in MH+BPS treatment, and there were no significant difference between MH and BPS treatments. In conclusion, supplemental lighting of low light intensities was effective in reducing days to flowering and reduced occurrence of blind shoots.

키워드

참고문헌

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