Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Growth Inhibition, Seedling Damage, and Antioxidant Change of Cucumber Plug-transplants in Response to UV Spectra and Irradiation Timing

자외선 파장과 조사주기가 오이 플러그묘의 생육억제, 유묘장해, 그리고 항산화 물질 변화에 미치는 영향

Jeong, Sung-Woo;Park, Joong-Choon;Huh, Moo-Ryong
정성우;박중춘;허무룡

  • Published : 2009.03.31
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Abstract

The objectives of this study were to determine the effect of UV spectra (B-UV: 274-400 nm or F-UV: 286-400 nm) and irradiation timing (at day or night) on growth inhibition, seedling damage, and antioxidant change in cucumber (Cucumis sativus L. cv. Garakmanchun) plug-transplants. B-UV (274-400 nm) significantly inhibited plant height and internode length; however, it increased ion leakage and lipid peroxidation, and decreased photosynthetic pigments, resulting in leaf necrosis and wrinkle regardless of irradiation timing. While F-UV (286-400 nm) did not cause plant damage such as leaf necrosis and wrinkle regardless of irradiation timing, it significantly inhibited plant height and internode length by 24% and by 21%, respectively and simultaneously increased the content of ascorbic acid and total phenolic compounds. Our results suggest that F-UV irradiation may be desirable for controlling the over-growth in cucumber plug-transplants.

자외선의 파장과 조사주기가 오이 플러그묘의 생육억제, 유묘장해, 그리고 항산화 물질의 함량 변화에 미치는 영향을 구명하고자 본 실험을 수행하였다. B-UV(274-400nm)의 처리는 조사주기와 관계없이 초장과 절간길이를 현저히 억제시켰다. 그러나 이온누출, 지질과산화, 그리고 엽록소의 유의적인 변화를 초래했으며, 결국 잎의 황백화와 주름현상을 나타내었다. 한편, F-UV(286-400nm)의 처리는 오이 유묘에 생리장해를 초래하지 않았고 초장과 절간장을 각각 24%와 21% 억제시켜 유의성이 있는 것으로 나타났고, 아울러 ascorbic acid와 총 페놀 화합물의 함량을 증진시켰다. 이는 F-UV 처리에 대한 항산화 물질의 증가로 판단되며, 새로운 도장억제 처리기술의 가능성을 제시해주었다.

Keywords

References

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