Effect of Polyolefine Greenhouse Covering Film on Growth of Lettuce and Cucumber in Cool Season Cultivation

국문 초록 (Abstract)

본 연구는 비닐하우스 피복재인 폴리오레핀(PO)계 필름의 효과를 구명하고자 관행의 피복필름(PE + EVA)과 비교하여 피복재별 물리적 특성과 상추와 오이의 생육 및 수량을 검토하였다. 인장강도, 인열강도 등 피복재의 물리적 특성은 일반필름보다 PO필름이 우수하였다. 400~700 ㎚의 광합성유효광의 투과율은 일반필름에 비해 PO필름이 4.1% 높았고, 전체 광선투과율(300~1,100 ㎚)도 PO필름이 4.3% 높았다. 하우스 내의 주간 평균기온은 일반필름보다 PO필름이 1.5℃ 높았고, 야간 평균기온도 PO필름이 0.8℃ 높게 유지되었다. 주야간 상대습도는 필름 간에 유의적 차이가 없었다. 엽록소 함량은 오이의 경우 필름 간 유의적 차이는 없었으나 일반필름에 비해 PO필름이 엽록소 a가 약간 높았으며, 상추는 PO필름이 일반필름보다 유의하게 높았다. 수확기 오이 생육에 있어서 초장, 엽면적, 생체중 및 건물중 모두 일반필름보다 PO필름을 피복한 하우스에서 크고 무거웠다. 수확한 오이의 과실 수량은 일반필름에 비해 PO필름이 14.0% 높았고, 상추 수량도 일반필름보다 PO필름이 13.6% 높았다.

다국어 초록 (Multilingual Abstract)

This study evaluated the effect of polyolefine greenhouse covering film on growth of lettuce and cucumber. The growth of lettuce and cucumber plants under conventional film (polyethylene plus ethylenevinyl acetate, PE + EVA) and polyolefine (PO) film were evaluated in a greenhouse. The physical qualities of PO film, such as tensile strength and tear strength, were stronger than conventional PE + EVA film. PO film showed 4% higher transmission performance in photosynthetic active radiation (PAR) than PE + EVA film. The average day and night temperature in greenhouse under PO film were 1.5oC and 0.8oC higher but there was no significant difference in relative humidity compared with conventional film. Chlorophyll content of lettuce and cucumber plants grown under PO film were higher than conventional film. Growth characteristics; plant height, leaf area, fresh weight and dry weight of cucumber was shown better for PO film. The yields of cucumber and lettuce was increased 14.0% and 13.6% respectively, when the crops were grown under PO covering film greenhouse.

목차 (Table of Contents)

• Abstract
• Introduction
• Materials and Methods
• Results and Discussion
• Literature Cited
• 적요

참고문헌 (Reference)

1 권준국, "플라스틱하우스용 피복재의 광학 · 물리적 특성" 한국생물환경조절학회 10 (10): 141-147, 2001

2 Kwon, Y. S., "Vegetable production in plastic film house in Korea" 1-12, 1992

3 Cockshull, K. E., "The influence of shading on yield of glasshouse tomatoes" 67 : 11-24, 1992

4 Marcus, B. A., "Relationship between light intensity and chlorophyll content in Myriophyllum spicatum L. in Canadice Lake (New York, USA)" 9 : 169-172, 1980

5 Challa, H., "Quantification of effects of light reduction in greenhouses on yield" 148 : 501-510, 1984

6 Spence, D.H.N., "Photosynthesis and zonation of freshwater macrophytes II. Adaptibility of species of deep and shallow water" 69 : 217-227, 1970

7 Lawlor D. W., "Photosyntesis" BIOS Scientific Publishers Ltd 2001

8 Geoola, F., "Outdoor testing of agricultural cladding materials" 486 : 48-54, 1999

9 Chun, H., "Microclimate analysis of greenhouse covered with functional films" 15 : 265-271, 2006

10 Roberts, W.J., "Greenhouse Glazings" 1998

11 Hurd, R. G., "Energy saving techniques in greenhouses and their effects on the tomato crops" 33 : 94-101, 1983

12 Athanasios, P., "Effects of three greenhouse cover materials on tomato growth, productivity and energy use" 70 : 165-178, 1997

13 Piróg, J., "Czynniki klimatyczne pod oslonami. In: Uprawa warzyw pod oslonam" PWRiL 1993

14 Cockshull, K. E., "Crop environments" 312 : 77-85, 1992

15 Van Winden, C. M. M., "Comparison of the effect of single and double-glass greenhouses on environmental factors and production of vegetables" 148 : 567-573, 1984