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생육시기별 광량조절이 인삼의 수량 및 품질에 미치는 영향
천성기(Seong-Ki Cheon),이태수(Tae-Su Lee),윤종혁(Jong-Hyuk Yoon),이성식(Sung-Sik Lee),목성균(Sung-Kyun Mok) 고려인삼학회 2004 Journal of Ginseng Research Vol.28 No.4
This study was conducted to compare the root weight, yield, quality of fresh and red ginseng roots and crude saponin content in roots between fixing light transmittance(Control) and changing light transmittance(C.L.T.) during the ginseng growing seasons. The root weight in C.L.T. was higher than control by 35% in early growth stage, 28% in middle growth stage and 26% in late growth stage in 6 years old ginseng plant. Root yield per 10a in C.L.T. was increased about 40% as compared with that of control, also 1st and 2nd grade of fresh ginseng roots in C.L.T. was higher (50.3%) compared with that (12.9%) of control. The specific gravity of ginseng roots grown under the C.L.T. was exhibited the significant difference than control during the growing season in 4 and 6 years old ginseng plants. Red ginseng quality in C.L.T. was not only improved remarkably due to the increasement of heaven and earth grade red ginseng but also increased in crude saponin content than control. Therefore it needs to change the light transmittance(increasing light during low temperature periods and decreasing light during high temperature period) during the growing season for high yield and good qualities of ginseng roots.
인삼포의 환경조건과 인삼(Panax ginseng C. A. Meyer) 생육과의 관계
李盛植,千成基,睦成均 韓國作物學會 1987 Korean journal of crop science Vol.32 No.3
포장상태에서 인삼생육의 최적광양을 알기 위하여 상대조도 5%(관행볏짚). 15 % 및 20 % (백색불섬포) 하에서 5년근 개체군의 재식위치별로 해가 림내 조도, 미기상, 광합성 및 호흡속도, 근수량등을 조사한 바 그 결과는 다음과 같다. 1. 해가림 내 맑은날의 온도는 10~14시경에 상대조도 5 %구에 비해서 15%구가 2℃ , 20 %구가 3℃ 정도 각각 높았으나 흐린날은 상대조도 처리간에 차이가 거의 없었다. 2. 해가림내 맑은날 상대습도는 10~14시경 상대조도 5%구에 비해서 15 %구가 5%, 20 %구가 8%정도 각각 낮았고, 흐린날은 차이가 근소하였다. 3. 해가림내 맑은날의 일중 조도는 10~15시경에 상대조도 5%구는 5,000 lux 미만이었으나 15%구는 15,000 lux, 20%구는 20,000 lux로 이논치와 비슷하였으나, 흐린날은 조도의 변화폭이 심하여 대개 상대조도 5%구는 3,0001ux 미만이었으나 15 % 및 20%고는 각각 10,000 lux, 15,000 lux 였다. 4. 포장하의 광합성속도는 맑은날의 경우 상대조도 15% 및 20%구가 5%구에 비해 현저히 빨랐고, 흐린날의 경우도 비슷하였다. 5. 일중 광합성 총양은 맑은날과 흐린날 공히 상대조도 15%구가 가장 높고 20%, 5% 순으로 높았으며. 맑은날이 흐린날보다 광합성량이 많았다. 행간 광합성량은 상대조도 15% 및 20%구는 비슷한 반면 5%구는 차이가 컸다. 6. 근중은 15%, 20%. 5% 순으로 상대조도 15%구가 가장 무거웠고 행간의 근중차이가 15%, 20%구는 비슷한 반면 5%구는 컸다. Changes of light intensity under and above shading materials were measured at different relative light intensity(R.L.I. 5% of common straw shading, 15% of polyester shading and 20% of polyester shading at 12 o'clock on clear day) and lines(lst, 3rd and 5th lines) on clear and cloudy days in 5-year -old ginseng plant populations. Rates of photosynthesis and respiration, microclimate and root yield were also measured in field. Air temperature of R.L.I. 5% were lower 2~circC compared with R.L.I. 15% and lower 3~circC compared with R. L. I. 20% from 12 to 14 o'clock on clear day, but there were not difference among R. L. I. on cloudy day. Relative humidity of R. L. I. 5% were higher 5% compared compared with R.L.I. 20% from 10 to 14 o'clock on clear day, R. L. I. on cloudy day. Light intensity were below 5,000 lux at R.L.I. 5%, about 15,000 lux at R.L.I. 15% and about 20,000 lux at R.L.I. 20% from 10 to 15 o'clock on clear day. But light intensity were below 3, 000 lux at R. L. I. 5% about 10, 000 lux at R. L. I. 15% and about 15, 000 lux at R. L. I. 20% from 10 to 15 o'clock on cloudy. Photosynthetic rate of R.L.I. 15% and R.L.I. 20% were higher compared with R.L.I. 5% on clear and cloudy days. Tatal photosynthesis in a day were increased by R.L.I. 5%, 20%, 15% in turn on clear and cloudy days. R. L. I. 15% and 20% were not notable difference of photosynthetic rates among lines but R. L. I. with R. L. I. 15%, and higher 8% but there were not different among 5% was notable difference of one. Root fresh weight were increased by R.L.I. 5%, 20% and 15% in turn and R.L.I. 15% and 20% were not notable difference of root yield among lines but R. L. I. 5% was notable difference of one.
사람에서 분리된 살모넬라의 국내 유행 혈청형과 해외 유입 혈청형, $2004{\sim}2005$
김석호,김성훈,천성균,최은숙,살모넬라 감시그룹,이복권,Kim, Shuk-Ho,Kim, Sung-Hun,Chun, Sung-Guen,Choi, Eun-Sook,Salmonella Surveillance Group, Salmonella Surveillance Group,Lee, Bok-Kwon 대한미생물학회 2006 Journal of Bacteriology and Virology Vol.36 No.2
Salmonella is a communicable enteric pathogen commonly found in foodborne diseases. We showed the prevalence of S. enterica serovars from domestic residents and overseas travelers. In 2004-2005 years, Weltevreden, Anatum, and Tallahassee were predominant Salmonella serovars from overseas travelers, but Enteritidis, Typhimurium, and Typhi were major Salmonella serovars from domestic residents. In order to analyze the trends of prevalence and distribution of the serovars, Salmonella surveillance with an international study is essential for the disease control and prevention.