• 대한지역사회영양학회지
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• 제11권6호
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• pp.695-706
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• 2006

This study was to investigate the relationship between time spent on lunch and degree of obesity, eating habits in culinary college male students. This survey was conducted using questionnaires for 106 male students in a Hongseung-located culinary college. Over 16 minutes of time spent on lunch group had significantly lower body weights, obesity degrees and body mass index (BMI) and tended to have lower body fat % than the other groups. It suggests that shorter time spent on lunch is related with lower body weight, obesity degree and BMI. Those who ate the meal prepared by mother had longer time spent on lunch. The shorter times spent on lunch group recognized their body shape was lean, the longer time spent on lunch group recognized the overweight or obesity significantly. The shorter time spent on lunch group tended to eat the cooked rice in the gug and recognized that they were not healthy. Those who had diseases in the past tended to have shorter time spent on lunch. The more they chewed cooked rice and then longer time spent on lunch they had, they recognized their eating speed was not significantly speedy. The shorter time spent on lunch they had, the fewer fruits and salty foods they ate significantly. This study suggests that more chewing time. slower eating speed and longer time spent on eatmg lunch is very related with lowering weight, BMI, body fat % and obesity degrees, so male college students should be educated to have correct eating habits.

• 식물병연구
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• 제14권1호
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• pp.1-9
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• 2008

The severe damage induced by the important viruses of Rice stripe virus (RSV), Cucumber green mottle mosaic virus (CGMMV), Melon necrotic spot virus (MNSV), Tomato spotted wilt virus (TSWV) and Tomato bushy stunt virus (TBSV) was described on major crops in Korea. In 2007, the plot incidence rate of RSV was 100% on the precocious rice cultivars at the Western coastal provinces of Gyeonggido, Chungcheongnamdo, Jellabugdo and Jellanamdo, and Jejudo. RSV occurred in 2,441 ha with incidence rate of 70% over at 5 areas of Seocheon, Seosan, Boryung, Hongsung and Buyou in Chungcheongnamdo. At 4 areas of Buan, Gimje, Gunsan and Gochang in Jellabukdo, RSV occurred in 2.016 ha. CGMMV occurred on watermelon in 4.6 ha at Cheongyang area, and its outbreak was also 890 ha on oriental melon for 120 farmers with the incidence area of 23% against total cultivation areas of Seongju. MNSV was recorded firstly on watermelon in 2006 at Andong and it spread to 3 areas of Hapcheon, Gochang and Yanggu. TSWV occurred firstly at Danggin in Chungcheongnamdo in 2005. TSWV in 2006 spread to 6 areas; Taian, Hongsung and Seosan in Chungcheongnando, Namwon in Jellabukdo, and Sunchon and Kwangju in Jellanamdo. In 2007, TSWV covered 17 areas of western and southern parts; the 5 area including Taian in Chungcheongnamdo, Kwangju in Jellanamdo, Bucheon in Gyunggido, and so forth. TBSV was described firstly on table tomato at Sacheon in Kyungsangnamdo in 2004. TBSV occurred on cherry tomato at Chungju in 2006 and on table tomato at Busan area.

• 미생물학회지
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• 제55권3호
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• pp.286-288
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• 2019

벼 종자에서 분리한 Pseudomonas parafulva PpaJBCS1880 (PpaJBCS1880) 균주는 lipopeptide를 분비하여 식물의 세균 병원균에 대해 강력한 항균력을 나타냈다. 또한, PpaJBCS1880는 콩불마름병의 발생을 억제하였을 뿐만 아니라, 벼의 생육을 촉진하였다. 이에 따라, 본 연구에서는 PpaJBCS1880 균주의 전체염기서열을 해독하고 분석하였는데, 총 염기서열은 5,208,480 bp였고, GC 함량은 63.4%였다. 염색체는 4,487개의 단백질을 암호화하였고, 19개의 rRNA와 74개의 tRNA로 구성되어 있었다. 유전체의 분석을 통해 2차 대사산물인 lipopeptide, pyoverdine, phenazine 및 hydrogen cyanide 등을 생산하는 것을 확인하였는데, 이들 대사산물에 의해 항균력, 생물방제 및 생육촉진 효과를 나타내는 것으로 판단된다.

• 농업과학연구
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• 제47권4호
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• pp.1049-1056
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• 2020

Ultrafine dust causes asthma and respiratory and cardiovascular diseases when inhaled. Ammonia (NH3) plays a big role in ultrafine dust formation in the atmosphere by reacting with nitrogen oxides (NOx) and sulfur oxides (SOx) emitted from various sources. The agricultural sector is the single largest contributor of NH3, with the vast majority of emissions ensuing from fertilizers and livestock sector. Interest in using biochar to attenuate these NH3 emissions has grown. This experiment was conducted to study the effects of using rice hull biochar pyrolyzed at three different temperatures of 250℃ (BP 4.6, biochar pH 4.6), 350℃ (BP 6.8), and 450℃ (BP 10.3) on the emission of ammonia from soil fertilized with urea. The emissions of NH3 initially increased as the experiment progressed but decreased after peaking at the 84th hour. The amount of emitted NH3 was lower in soil with biochar amendments than in that without biochar. Emissions amongst biochar-amended soils were lowest for the BP 6.8 treatment, followed in an ascending order by BP 10.3 and BP 4.6. Since BP 6.8 biochar with neutral pH resulted in the lowest amount of NH3 emitted, it can be concluded that biochar's pH has an effect on the emissions of NH3. The results of this study, therefore, indicate that biochar can abate NH3 emissions and that a neutral pH biochar is more effective at reducing gaseous emissions than either alkaline or acidic biochar.

• 한국식생활문화학회지
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• 제25권5호
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• pp.499-507
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• 2010

The purpose of this study was to investigate American's perception and preference for Korean kimchi. A questionnaire was used to examine the perceptions of 126 males (40.4%) and 186 females (59.6%) residing in Illinois and California. Approximately 68% of the respondents had eaten Korean food. The perception of kimchi was the highest with a mean of 3.62. The respondents felt that the "Kimchi is a good side dish with cooked rice", "Kimchi (with garlic) prevents SARS", which was significantly different (M=3.06, p< .001), and "Kimchi prevents adult diseases" (M=3.24, p< .01). When evaluating the different kinds of kimchi, onion juice kimchi had the most preferred taste and also the highest overall acceptability (M=5.50, p< .05) of the second days. In the sensory evaluation by kimchi use, the best taste (p< .001) was in the order of kimchi pizza (M=6.58), kimchi dumplings (M=6.40), and kimchi chicken a'laking (M=6.33). The order for overall acceptability (p< .001) was kimchi dumplings (M=6.30), kimchi pizza (M=6.25), kimchi bacon roll, kimchi fried rice, and kimchi chicken a'laking (M=6.17).

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.193-193
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• 2022

Cowpea(Vigna unguiculata L. Walp) has a low fat and protein content and a relatively high starch content, so it is mainly used in various ways for song-pyeon sediment, rice-cake paste, and porridge. In Yeonggwang-gun, Jeollanam-do, cowpea for seed production is being cultivated for the localization of raw material for Rice cake with ramie leave. A cowpea variety 'Jang-Alchan' was improved from the cross between IT145373 and IT145391 at the JARES in 2019. 'Jang-alchan' has an erect plant with an intermediate plant habit, light purple-colored corolla, and heart-shaped leaflets. 'Jang-alchan' has an orange-yellow seed seed-surface of faint luster, and brown and straight pods when matured. The stem length of 'Jang-alchan' was 48cm, 9cm longer than that of the control cultivar 'Okdang' and the 100-seed weight was 14.1g. The weight ratio of the seed coat for the entire seed was 11.2%, which was 0.2%p lower than that of the control cultivar. Field resistance of 'Jang-alchan' to leaf and systemic diseases was similar to that of the control cultivar. Is field resistance of 'Jang-alchan' to lodging was slightly lower than that of the control cultivar. The average yield of 'Jang-alchan' was 1.85ton per hectare, which was 14% higher than that of the control cultivar 'Okdang', 'Jang-Alchan' does not require the installation of an espalier-net and is taller than the existing supplied 'Okdang', so it can be harvested by combine harvesting. In addition, it is expected to contribute to the localization of raw material grains for regional specialties as it can be cultivated over a large area.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.88-88
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• 2022

Detection of stress responses in crops is important to diagnose crop growth and evaluate yield. Also, the multi-spectral sensor is effectively known to evaluate stress caused by nutrient and moisture in crops or biological agents such as weeds or diseases. Therefore, in this experiment, multispectral images were taken by an unmanned aerial vehicle(UAV) under field condition. The experiment was conducted in the long-term fertilizer field in the National Institute of Crop Science, and experiment area was divided into different status of NPK(Control, N-deficiency, P-deficiency, K-deficiency, Non-fertilizer). Total 11 vegetation indices were created with RGB and NIR reflectance values using python. Variations in nutrient content in plants affect the amount of light reflected or absorbed for each wavelength band. Therefore, the objective of this experiment was to evaluate vegetation indices derived from multispectral reflectance data as input into machine learning algorithm for the classification of nutritional deficiency in rice. RandomForest model was used as a representative ensemble model, and parameters were adjusted through hyperparameter tuning such as RandomSearchCV. As a result, training accuracy was 0.95 and test accuracy was 0.80, and IPCA, NDRE, and EVI were included in the top three indices for feature importance. Also, precision, recall, and f1-score, which are indicators for evaluating the performance of the classification model, showed a distribution of 0.7-0.9 for each class.

• 한국응용곤충학회지
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• 제21권3호
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• pp.153-158
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• 1982

남부시설원예지대의 중심을 이루고 있는 김해 남지 진주 순천 등 4개지역을 대상으로 1981년 4월말부터 1982년 4월말까지 비닐하우스에서 재배되고 있는 주요채소에 발생되는 병의 종류와 발생율, 전염경로, 발병환경 등을 작물별 생육기별로 조사하여 다음과 같은 결과를 얻었다. 토마토의 잎곰팡이병과 겹둥근무늬병은 유묘류에 가장 피해를 주는 병으로 이병 종자를 파종한 경우는 파종후 35일부터 급격히 병세가 진전되였다. 오이의 덩굴쪼김병은 접목재배나 답전환 윤작재배시는 발병주율이 $0.5\%$ 이내였으나 전작물 윤작지는 평균 $21\%$ 오이 연작인 경우는 최고 $79\%$에 달하였다. 오이 노균병은 4월부터 8월말까지 발생이 심한데 진주와 순천 지역에서 피해가 컸고 억제재배를 주로하는 남지에서는 이 병의 피해가 적은 반면 8월 이후에 흰가루병의 발생이 많았다. 오이${\cdot}$모자익 바이러스병은 모든 조사지역에서 많이 발생되었는데 6월 이후 급격히 발생이 증가되었다. 고추에 가장 피해가 큰 병은 Phytopthora capsici에 의한 역병으로 12월부터 1월사이에 큰 피해를 주었으며 그후 점차로 감소하여 3월 경부터 지제부를 가해하여 5월 이후에는 이 법에 의한 고사율이 급격히 증가되었다. 토마토의 바이러스병은 전지역에서 심하게 발생하였으며, 토마토 연작재배지역인 김해, 진주지역에서는 잎 곰팡이병 및 잿빛곰팜이병 등 잎에 발생하는 병이 많았다.

• 한국육종학회지
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• 제41권4호
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• pp.515-519
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• 2009

"상옥"은 밥맛이 뛰어난 벼품종을 육성할 목적으로 1988/1989년 동계에, 미질이 좋고 중생종인 Milyang 101과 Chukei 830과 밀양80호의 F1을 약배양하여 육성된 YR8697Acp97을 (in winter) 교배하여 '89년 하계에 F1 식물체를 양성하고 '90년에는 F2 집단을 전개하고 집단으로 선발하였다. 이후 '91년부터 '93년 F6세대까지 집단육종법으로 세대를 진전시키면서 생육 및 출수 특성 등을 관찰한 뒤 '94년부터 '96년까지는 계통육종법으로 관리하다가 '00년에 생산력검정시험을 실시하여 생육특성이 양호한 YR12950-B-B-B-19-2-4-2-2을 선발하여 밀양 182호의 계통명을 부여하였다. '01-'03까지 3개년간의 지역적응시험을 실시한 결과 중생종이면서 쌀품위가 좋고 밥맛이 양호하며 내병성이 양호한 것으로 평가되어 2003년 12월 농작물 직무육성 신품종 선정위원회에서 국가 품종목록으로 등재할 것을 결정하고 "상옥"으로 명명하여 적응지역인 대전이남 평야지 1 2모작지대에 보급하게 되었다. 1. 출수기는 남부평야지의 보통기재배에서 8월 11일로 남평벼보다 7일 빠른 중생종이다. 2. 수당립수는 남평벼보다 약간 적으나, 등숙비율이 남평벼 보다 양호하고 현미천립중은 21.2 g으로 동진벼보다는 작고 남평벼보다는 무거운 편이다. 3. 내냉성 검정 결과 출수지연일수는 심했으나 임실율에서 남평벼보다 약간 양호한 편이다 4. 잎도열병 밭못자리 검정 결과 중도저항성을 보였고 흰 잎마름병에는 K1,2,3 race에 저항성이었으며 줄무늬잎마름병에는 저항성이었으나 오갈병과 검은줄오갈병에는 약하였고 벼멸구 등 충해에는 감수성이다. 5. 도정특성은 도정수율과 백미완전립율 모두 남평벼에 비해서는 아주 양호한 편이고 현미 장폭비가 1.84로 둥글며 심복백이 적고 투명도가 높다. 아밀로스함량은 18%로 남평벼와 거의 같고 단백질과 알칼리 붕괴도는 낮은 편이다. 밥맛 관능검정 결과 총평으로 보아 남평벼 보다 높았다. 6. "상옥"의 쌀수량은 '01~'03년 3개년간 실시한 지역적응 시험 결과 보통기 보비재배 12개소에서 평균 516 kg/10a로 남평벼 대비 102%, 이모작재배에서 433 kg/10a로 101%, 만식재배에서는 504 kg/10a로 97% 수준이었다. 7. 상옥은 대전이남 남부평야지 1 2모작답에 적응성이 뛰어나며 충남, 전남북 및 경남북이 보급 대상 지역이다.

• 한국육종학회지
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• 제40권2호
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• pp.188-191
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• 2008

'황금누리' 품종은 작물과학원 호남농업연구소에서 2006년도에 육성한 중만생 고품질 복합내병성 품종으로 주요특성과 수량성을 요약하면 다음과 같다. 1. '황금누리'는 남서해안지, 호남 및 영남평야지 보통기 표준재배에서 평균 출수기가 8월 17일로 '남평벼'보다 1일 늦은 중만생종이다. 2. 주당수수 및 현미천립중은 '남평벼'와 비슷하나 수당립수는 '남평벼'보다 많고 등숙비율은 약간 낮다. 3. 위조현상은 나타나지 않았으며 성숙기 하엽노화가 늦고 수발아는 '남평벼'보다 잘 안되는 편이다. 춘천 내냉성 검정 결과 '남평벼'에 비해 유묘기 내냉성 및 출수지연일수은 비슷하나 임실율 낮은 경향이었다. 4. 잎도열병은 중도저항성이며 잎도열병 병반면적율은 '남평벼'보다 낮고 친화성 균주수가 적어 내구저항성은 '남평벼'보다 강하며 흰잎마름병($K_1{\sim}K_3$), 줄무늬잎마름병에는 저항성이나 오갈병과 검은줄오갈병에는 약하다. 5. 심복백은 거의 없고 '남평벼' 수준으로 맑고 투명하다. 아밀로스 함량은 '남평벼'와 비슷하나 단백질함량이 낮고 밥맛이 양호하다 도정율 및 완전미도정수율은 '남평벼'와 비슷하다. 6. 쌀수량이 5.74 MT/ha로 '남평벼'보다 2% 증수되었고, 이모작 재배에서 5.36 MT/ha, 만식재배에서는 5.34 MT/ha로 각각 2, 3% 증수하였다.