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마늘 주아의 발아율을 높이기 위한 친환경 소독 방법과 발아온도 규명
전윤아(Yoon-A Jeon),차미경(Mi-Kyung Cha),조영열(Young-Yeol Cho) 한국원예학회 2018 원예과학기술지 Vol.36 No.5
본 연구는 새로운 잎채소로 잎마늘로 사용하기 위해 ‘남도’ 마늘의 소립 주아를 이용해 최적의 소독방법과 온도를 결정하고자 수행되었다. 주아의 소독방법으로는 NaOCl 처리와 UV 램프 처리를 이용한 두 가지 소독방법으로, 주아의 발아율과 오염률를 측정하여 조사하였다. NaOCl 농도 처리는 0에서 4.0% 처리와 UV 조사시간을 달리하여 15분에서 60분 처리하였다. 주아의 발아를 위해 생육상에서의 발아 온도는 2.0% NaOCl 용액에 온도 20, 25와 30°C로 처리하였다. 침지 시간은 발아율에 유의적인 차이는 없었지만, 오염률을 감소시켜서, 침지시간이 길어질수록 더 낮은 오염률을 나타냈다. 모든 다른 매개 변수 조합들을 비교 분석하면, 주아를 2.0% NaOCl에서 45분 동안 또는 3% NaOCl에서 30분 동안 항온 처리되었을 때 가장 높은 발아율을 보였다. 4시간 동안 UV를 조사하면 발아율이 NaOCl에 의한 소독 방법에 비해 감소되었지만, 가장 높은 발아율을 보였다. 온도는 발아율과 음의 상관 관계를 보였으나, 최적 온도는 20°C보다 높은 고온에서는 더 많은 오염률이 관찰되었다. ‘남도’ 마늘 주아를 2.0과 3.0 % NaOCl 용액에 30분간의 침지 시간 처리한 후 20°C에서 발아시키면 가장 높은 발아율과 낮은 오염률을 얻을 수 있다. This study aimed to determine the optimal disinfection method and temperature for germinating ‘Namdo’ garlic bulbils in order to use the garlic shoots as a new leafy vegetable. Two different disinfection methods utilizing either NaOCl or ultralviolet (UV) treatments were evaluated by measuring the germination rate of bulbils and the frequency of infection events. The NaOCl method involved treatments with NaOCl concentrations ranging from 0% to 4% for different periods from 15 up to 60 minutes, whereas under UV treatments only the irradiation time was varied. Germination rates of bulbils were assessed after soaking in 2.0% NaOCl and incubation at three different temperatures: 20, 25, or 30°C. Varying the bulbil soaking period did not result in different germination rates, however, it did reduce the infection frequency, with more extended soaking periods resulting in fewer infection events. Comparative analysis of all different parameter combinations revealed that the highest germination rate was observed when bulbils were incubated in 2.0% NaOCl for 45 min or in 3% of NaOCl for 30 min. Irradiation with UV light for 4 hours resulted in the highest germination rate among the irradiation durations, albeit the germination rate was reduced compared to the NaOCl-mediated disinfection method. Temperature was negatively correlated with germination rate, while more infection events observed at higher temperatures, with 20°C being the optimal temperature. We suggest incubation of ‘Namdo’ garlic bulbils in either 2.0 or 3.0% NaOCl solution with more than 30-min soaking time followed by incubation at 20°C to achieve the highest germination rate with low occurrence of infection events.
선천성 고혈압 흰쥐에서 두릅 에탄올 추출물의 항고혈압 효과
진주연,박은혜,전윤아,이영재,Jin, Ju-Youn,Park, Eun-Hye,Jeon, Yoon-A,Lee, Young-Jae 대한수의학회 2017 大韓獸醫學會誌 Vol.57 No.3
Antihypertensive effects of ethanol extracts of Aralia elata (Miq.) Seem. (AE) were investigated in spontaneously hypertensive rats (SHR). SHR aged 14 weeks were treated for 8 weeks with AE (10 or 50 mg/kg/day) or amlodipine besylate (Am; 10 mg/kg/day) orally. Hypertension results in injury to several organs and can produce a significant increase in malondialdehyde (MDA) content as a result of lipid peroxidation and endothelial dysfunction. In this study, oral administration of AE and Am significantly reduced systolic blood pressure, organ weight index, and MDA content in tissues but increased significantly the plasma nitrite and nitrate concentrations. The endothelium-dependent relaxant activities of acetylcholine ($10^{-10}-10^{-3}M$) in norepinephrine (NE)-precontracted aorta were increased in AE- and Am-treated rats. Particularly strong endothelium-dependent relaxant activities were observed in AE-treated (50 mg/kg) rats. The endothelium-independent relaxant activities of sodium nitroprusside ($10^{-10}-10^{-3}M$) in NE-precontracted aorta were not changed. The results of this study suggest that AE has both antihypertensive and end-organ protective effects in SHR.
운찬일(Chan-Il Uoon),차미경(Mi-Kyung Cha),전윤아(Yoon-A Jeon),조영열(Young-Yeol Cho) (사)한국생물환경조절학회 2017 생물환경조절학회지 Vol.26 No.4
식물공장에서는 작물에 필요한 재배환경을 인위적을조절하여 고품질 농산물에 대한 연중 계획생산이 가능하다. 본 연구는 완전제어형 식물공장 재배에 적합한 콜라비 품종을 선발하고자 실시하였다. 실험은 완전제어형 식물공장에서 수행하였고, 식물재료는 적색의 콜라비 품종인 ‘아삭콜’, ‘콜리브리’와 ‘퍼플킹’ 품종을 사용하였다. 인공광원은 LED광이었으며, 광도와 일장은 각각 249μmol·m·<SUP>2</SUP>·s<SUP>-1</SUP>, 12/12시간(밤/낮)이었다. 순환식 담액수경방식으로, 정식 후 57일까지 재배하였다. 정식 후 43일째에 전체 생체중과 괴경의 생체중 및 엽면적은 품종간에 유의적인 차이를 보이지 않았다. 건물중과 괴경은 ‘아삭콜’ 품종이 가장 높게 나타났으며, 엽수는 ‘퍼플킹’ 품종이 가장 많았다. 당도와 수량는 ‘아삭콜’ 품종이 가장 높았다. 생육과 상품수량을 고려해 볼때, 완전제어형 식물공장에 적합한 콜라비 품종은 ‘아삭콜’ 이었다. Plant factory can control artificially the environments for crop cultivation, so they can produce high quality agricultural products all year round. This study was carried to select suitable kohlrabi cultivar for hydroponics in a closed-type plant factory system. We used three cultivars of red kohlrabi, ‘Asac kohl’, ‘Kolibri’, and ‘Purple king’ as plant materials. The artificial light source was LED light, light intensity and photoperiod were 249μmol·m<SUP>-2</SUP>·s<SUP>-1</SUP> and 12/12 hours (day/night period), respectively. Hydroponic cultivation type was used circulating deep flow technique. At 43 days after transplanting, fresh weight of whole plant and tuber and leaf area were not significantly different among cultivars. Shoot dry weight and tuber dry weight were highest in ‘Asac kohl’ cultivar, and number of leaves was highest in ‘Purple king’ cultivar. Sugar content and yield were highest in ‘Asac kohl’ cultivar. Considering the growth and marketable yields, ‘Asac kohl’ was the optimal kohlrabi cultivar for hydroponic cultivation in a closedtype plant factory system.