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RISS 인기검색어
- 검색키워드
- 저자 : 이상규 ( Eun Young Oh ) (검색결과 4 건)
- 무료
- 기관 내 무료
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박은지 ( Eun Ji Park ),허유 ( You Heo ),손병구 ( Beung Gu Son ),최영환 ( Young Whan Choi ),이용재 ( Yong Jae Lee ),박영훈 ( Young Hoon Park ),서정민 ( Jeong Min Suh ),조재환 ( Jae Hwan Cho ),홍창오 ( Chang Oh Hong ),이상규 ( Sang 한국환경과학회 2014 한국환경과학회지 Vol.23 No.5
Growth and physiological disorders caused by abnormally low temperatures were evaluated in pepper, an important field crop in Korea. In addition, the effects of chemical treatment using glutamine was verified on minimizing the damages by low temperature. The growth of pepper plants in stem length and diameter was suppressed as the temperature decreased from 25℃, and the suppression level was the highest for plants grown for 90 days at 20℃. However, root growth was not affected by the different temperatures. The number of leaf and leaf area decreased at the temperatures below 25C, an optimum temperature for growth. Fresh weight and dry weight decreased for plants grown at 20℃. Pepper fruit yield also decreased by 11% at 20℃ in comparison to 25℃. Falling blossom rate was different depending on the growth temperature, and the rate was 27.2% at 25℃, 35.2% at 22.5℃, and 41.0% at 20℃, indicating that falling blossom rate increased as temperature decreased. Different growth temperatures did not affected on the level of symptom of calcium deficiency and Phytopathora blight. Falling blossom was severe at abnormally low temperature of 20℃, but the treatment of glutamine reduced falling blossom rate and increased the yield by 7.0% as compared to control. The optimum concentration of glutamine treatment was 10 mg/L for yields.
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