Korean Journal of Environmental Agriculture (한국환경농학회지)
- Volume 1 Issue 2
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- Pages.123-128
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- 1982
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- 1225-3537(pISSN)
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- 2233-4173(eISSN)
Studies on the Effects of Ozone Gas in Paddy Rice;1. Effects of Ozone Gas on Growth Stage of Rice
수도생육(水稻生育)에 대(對)한 Ozone 가스의 영향(影響)에 관(關)한 연구(硏究);1. Ozone 가스에 대(對)한 수도생육시기별(水稻生育時期別) 영향(影響)
- Kim, Bok-Young (Institute of Agricultural Sciences) ;
- Cho, Jae-Kyu (Institute of Agricultural Sciences) ;
- Park, Young-Sun (Agricultural Chemicals Research Institute)
- Published : 1982.12.30
Abstract
This study was carried out to investigate the effect of ozone gas on paddy rice at the different growth stage. Seokwang variety of rice plant was exposed to 0.5 ppm ozone gas for 4 hours at rooting, maximum tillering, ear formation and heading stages. after ozone gas fumigation, damage symptom, percentage of destroyed leaf, chlorophyll content and peroxidase activity of rice plant were observed. The results obtained are as follows. 1) Typical symptom of ozone gas damage appeared greyish or reddish brown subtle spots within rice leaf vein. 2) Yield loss by ozone gas exposure at different growth stage was in the order of maximum tillering stage>rooting stage>ear formation stage>heading stage. 3) Chlorophyll damage and leaf destruction was the highest at maximum tillering stage, while damage of leaf and chlorophyll were not found at heading stage. 4) The damage by ozone gas fumigation was higher at the growth stage with higher N content in plant, and N content was decreased after ozone gas exposure.
수도(水稻)(서광(曙光)벼)의 활착기(活着期), 분고최성기(分藁最盛期), 유수형성기(幼穗形成期), 출수기(出穗期)때에 ozone가스 0.5ppm을 4시간(時間)씩 가스접촉실내(接觸室內)에서 접촉(接觸)시켜 가스접촉후(接觸後)에 나타나는 피해증상(被害症狀), 피해엽률(被害葉率), 엽록소함양(葉綠素含量) 및 peroxidase의 활성(活性)을 조사(調査)한 결과(結果)는 다음과 같다. 1) Ozone 가스에 의(依)한 수도엽(水稻葉)의 피해증상(被害症狀)은 은백색(銀白色)의 미세(微細)한 반점(斑點)이 엽맥(葉脈)을 따라 발생(發生)되며, 적갈색(赤褐色)
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