• Journal of Bio-Environment Control
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• v.18 no.3
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• pp.232-237
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• 2009

This study was performed to investigate the effect of high performance greenhouse films on growth and fruit quality of tomato. For this purpose, polyolefin (PO), fluoric, antidrop, antifog and thermal films were compared to normal film, ethylene vinyl acetate (EVA). In spectral irradiance of the films, UV ($300{\sim}400nm$) transmittance was highest in fluoric film and lowest in PO film. PAR (photosynthetically active radiation, $400{\sim}700nm$) transmittance was higher in fluoric, thermal and PO film, and near infrared ray (NIR, $700{\sim}1,100nm$) transmittance was higher in high performance films, compared to the EVA film. Total light transmittance was higher in order of fluoric, antifog, anti drop, PO, thermal, and EVA film. Day air temperature in greenhouse was highest under fluoric film and lowest under EVA film due to the light transmittance, while night air temperature was highest under PO and anti drop film due to the thickness of film. Tomato fruits grown under the high performance films had 0.2 to $0.5^{\circ}Bx$ higher soluble solids and 15 to 30% higher lycopene content, compared to those grown under the EVA film. The results showed that tomato fruit quality such as soluble solids and lycopene content can be heightened in terms of much irradiation and better light quality of high performance films, compared to the nomal film, EVA film.