[논문]황 플라즈마 및 고압나트륨 램프의 보광에 따른 생육상 및 온실에서의 파프리카 광합성 및 생산성 비교

박경섭; 권대영; 이준우; 손정익

doi:10.12791/ksbec.2018.27.4.332

황 플라즈마 및 고압나트륨 램프의 보광에 따른 생육상 및 온실에서의 파프리카 광합성 및 생산성 비교
Comparing Photosynthesis, Growth, and Yield of Paprika (Capsicum annuum L. 'Cupra') under Supplemental Sulfur Plasma and High-Pressure Sodium Lamps in Growth Chambers and Greenhouses 원문보기

시설원예ㆍ식물공장 = Protected horticulture and plant factory, v.27 no.4, 2018년, pp.332 - 340

박경섭 (국립원예특작과학원 시설원예연구소) , 권대영 (청주농업기술센터) , 이준우 (서울대학교 식물생산과학부 및 농업생명과학연구원) , 손정익 (서울대학교 식물생산과학부 및 농업생명과학연구원)

초록
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인공광을 이용한 보광은 시설재배에서 작물의 정상적인 생육과 수확량을 유지하고 품질 향상을 위하여 사용되는 실용적인 방법이다. 본 연구의 목적은 황 플라스마 램프(SP)와 고압 나트륨 램프(HPS)의 보광이 파프리카의 생육 및 수확량에 미치는 영향을 조사하는 것이다. 생장상에서는 SP 및 HPS를 기본 광원으로, 온실에서는 보광으로 사용하여 작물 생육에 미치는 효과를 비교 분석하였다. 생장상에서는 정식 2 주 후 SP와 HPS 하에서 초장, 엽면적, 줄기 직경, 엽수, 생체중 및 건물중을 매주 측정 하였다. 온실재배에서는 무보광을 대조구로 하였다. 보광은 07:00부터 21:00까지 외부일사 $100W{\cdot}m^{-2}$ 미만일 때 처리되도록 하였다. 보광 처리 후 3주부터 매주 생육량을 측정하였고, 2주 마다 수확하여 과실수와 과실무게를 측정하였다. 생장상에서는 높은 광합성속도로 인하여 SP가 HPS보다 생육이 양호하였고, 온실에서는 보광처리가 대조구보다 수확량이 유의적으로 높았다. 온실에서의 초장, 마디수, 엽장, 생체중, 건물중은 SP와 HPS 간의 유의적인 차이는 없었다. 그러나 수확 시 과실수와 수량은 광합성 증진과 및 과실수의 증가로 인하여 SP에서 많았다. SP는 태양광과 유사한 광 스펙트럼을 보였으나, HPS와 비교하여 높은 PAR과 적색과 원적색 파장의 광양자속의 합이 높았기 때문에 파프리카의 광합성과 수확량을 증가시켰다.

Abstract ▼ AI-Helper

Supplemental lighting with artificial light sources is a practical method that enables normal growth and enhances the yield and quality of fruit vegetable in greenhouses. The objective of this study was to investigate the effect of sulfur plasma lamp (SP) and high-pressure sodium lamp (HPS) as supplemental lighting sources on the growth and yield of paprika. For investigating the effectiveness of SP and HPS lamps on paprika, the effects of primary lighting on plant growth were compared in growth chambers and those of supplemental lighting were also compared in greenhouses. In the growth chamber, plant height, leaf area, stem diameter, number of leaves, fresh weight, and dry weight were measured weekly at SP and HPS from 2 weeks after transplanting. In the greenhouse, no supplemental lighting (only sunlight) was considered as the control. The supplemental lights were turned on when outside radiation became below $100W{\cdot}m^{-2}$ from 07:00 to 21:00. From 3 weeks after supplemental lighting, the growth was measured weekly, while the number and weight of paprika fruits measured every two weeks. In the growth chamber, the growth of paprika at SP was better than at HPS due to the higher photosynthetic rate. In the greenhouse, the yield was higher under sunlight with either HPS or SP than sunlight only (control). No significant differences were observed in plant height, number of node, leaf length, and fresh and dry weights between SP and HPS. However, at harvest, the number of fruits rather than the weight of fruits were higher at SP due to the enhancement of fruiting numbers and photosynthesis. SP showed a light spectrum similar to sunlight, but higher PAR and photon flux sum of red and far-red wavelengths than HPS, which increased the photosynthesis and yield of paprika.

주제어

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문제 정의

Therefore, plasma lamps should be applied to other crops except cucumber until harvest stage for evaluation of its effectiveness. The objective of this study was to compare the supplemental lighting effects of sulfur plasma and high pressure sodium lamps on the growth, productivity, and physiological characteristics of paprika in growth chamber and greenhouse.

제안 방법

The greenhouses (W 9.6 m × L 45 m × H 5.5 m) were divided to three plots for comparative experiments: with the sunlight with two supplemental lighting treatments of Sun + HPS and Sun + SP, and the sunlight without supplemental lighting (Sun).
2). To assess the difference in light environment in the greenhouses under supplemental lights, the light spectra were measured at Sun, Sun + HPS, and Sun + SP in the greenhouses on a clear day and a cloudy day by using the radio spectrometer. The number and weight of fruits were measured weekly from 6 April to 28 April.
To identify the effect of HPS and SP on paprika growth and development, cultivation experiments were conducted in two growth chambers (L 1.6 m × W 1.4 m × H 1.8 m, DS-59M, Dasol, Hwaseong, Korea) with each two HPSs and two SPs at a photoperiod of 14 h/10 h (day/night), respectively.

대상 데이터

5 mg·L^-1. The experiment was conducted in a Venlo-type greenhouse and growth chambers at National Institute of Horticultural and Herbal Science of Rural Development Administration (RDA) located at Haman, Korea.

데이터처리

Data were analyzed by one-way analysis of variance (ANOVA) using the SAS program (Statistical Analysis System, 9.2 Version, SAS Institute, Cary, NC, USA). Treatment means were compared using LSD test at p < 0.

후속연구

SP showed a light spectrum similar to sunlight, higher PAR and photon flux sum of red and far-red wavelengths than HPS, which increased the photosynthesis and yield of paprika. Further studies are needed to investigate the fertigation system control adapted to supplemental lighting.

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