• Title/Summary/Keyword: 시금치

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The residue property of fungicide boscalid and fluidioxonil at the same time harvest leafy-vegetables (일시수확 엽채류에서 살균제 Boscalid와 Fludioxonil의 잔류특성)

  • Bae, Byung-Jin;Lee, Hae-Kuen;Son, Kyeong-Ae;Im, Geon-Jae;Kim, Jin-Bae;Kim, Tae-Hwa;Chae, Seok;Park, Jong-Woo
    • The Korean Journal of Pesticide Science
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    • v.16 no.2
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    • pp.98-108
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    • 2012
  • In order to use in the classification of minor crop for the mutual application of safe use guideline, it was investigated the residue property of fungicide boscalid and fludioxonil at the same time harvest leafy-vegetables, such as spinach, ulgaribaechu, vitaminchae and cheongkyungchae. After pesticides were applied 2 times with 1 week interval in that day of harvest, 2 days, 5 days and 7 days before harvest, vegetables were harvested, and the residue of pesticides was investigated. Base on the residue in that day of harvest, the deposit of spray solution in vegetables was calculated. The deposit of spray solution of boscalid was 253.9 mL/kg in spinach, 83.0 mL/kg in ulgaribaechu, 97.8 mL/kg in vitaminchae, and 88.3 mL/kg in cheongkyungchae, respectively. In case of fludioxonil, it was calculated 157.6 mL/kg in spinach, 67.6 mL/kg in ulgaribaechu, 64.8 mL/kg in vitaminchae, and 66.6 mL/kg in cheongkyungchae, respectively. When the amount of the deposit of both pesticides was compared in leafy-vegetables, it was the highest in the spinach. On the other hand, it was estimated the predicted dissipation curve of pesticides in leafy-vegetables during cultivation. The half-life of boscalid was 5.9 days in spinach, 7.4 days in ulgaribaechu, 4.6 days in vitaminchae, and 4.3 days in cheongkyungchae, respectively. Also, it was estimated half-life in fludioxonil, it was 3.0 days in spinach, 4.0 days in ulgaribaechu, 3.2 days in vitaminchae, and 3.5 days in cheongkyungchae, respectively. The half-life was the longest in the ulgaribaechu. When both pesticides were compared with the residue property, the deposit of spray solution and half-life of dissipation of boscalid were more than those of fludioxonil.

Response of Growth and Functional Components in Baby Vegetable as Affected by LEDs Source and Luminous Intensity (LEDs 광조성 및 광도가 베이비채소의 생육 및 기능성물질에 미치는 영향)

  • Yoon, Seong-Tak;Jeong, In-Ho;Kim, Young-Jung;Han, Tae-Kyu;Yu, Je-Bin;Jae, Eun-Kyung
    • Korean Journal of Organic Agriculture
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    • v.23 no.3
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    • pp.549-565
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    • 2015
  • This study was conducted to investigate the growth characteristics and functional materials of baby vegetables as affected by different LEDs and luminous intensity at Anseongsi, Gyeonggi Province, in 2014. Test crops were beet, chicory, spinach, red leaf lettuce, crown daisy and red mustard purchased from the seed company of Dongbu Hannong and Jinheung. Growth characteristics were measured and the content of functional materials was analyzed 40 days after seeding at plug plate. Treatment of Red+Blue (4:1) at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity showed the highest number of leaves in five baby vegetables of beet, chicory, red leaf lettuce, crown daisy and red mustard. The highest shoot length of chicory, spinach, red leaf lettuce, crown daisy and red mustard was obtained from the treatment of Red+Blue (4:1) at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity. Fresh weight and dry weight of all six baby vegetables were the highest in treatment of Red+Blue (4:1) at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity. Content of chlorophyll a and chlorophyll b of spinach, red leaf lettuce and red mustard showed the highest in Fluorescent lamp at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity whereas other crops did not show definite trend under different LEDs lights and luminous intensity. The highest total content of anthocyanins and polyphenol were obtained from the treatment of Red+Blue (4:1) at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity in all six baby vegetables. Free radical scavenging activity was highest in all six vegetable crops at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity, but it was not different significantly between LEDs. As a result, the growth and the content of functional material of baby vegetables are generally to be increased in Red+Blue (4:1) at $150{\mu}mol\;m^{-2}s^{-1}$ luminous intensity. Mixed light of Red+Blue is thought to give good effect on the growth and the content of functional material in baby vegetable crops. Because there are many differences in regard of LED lights, crop varieties, cultivation and experimental methods in their impact on the growth and functional materials of baby vegetables among researchers, it is considered that a more precise studies are needed for the crop responses to LED light and luminous intensity.

Evaluation of ${SO_2}$ or ${O_3}$ Exposure Durations Requiring Foliar Damage Development by Using Bioindicating Plants (아황산가스(${SO_2}$)와 오존(${O_3}$)에 대한 지표식물의 가시적 피해 발현시간 조사)

  • 허재선;허용균;이충일
    • Korean Journal Plant Pathology
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    • v.11 no.2
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    • pp.107-115
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    • 1995
  • 들깨 '수원25호', 담배 'L8', 'KF109'와 'NC82', 시금치 '입추'와 나팔꽃을 생장혼경조절이 가능한 대기오염원 노출상에서 SO? 140ppb/시간 또는 O? 150ppb/시간의 농도로 하루 24시간 10일 동안 노출시킨 결과 '수원25호' 들깨와 담배 'L8'은 SO?에 민감한 반면, 담배 'L8'과 나팔꽃은 오존에 아주 민감한 것으로 판명되었다. 위의 농도에서 가시적 피해가 조사식물의 50%에서 발생하는 병반발생빈도 50%(SF?)를 기준으로 설정한 한계노출시간 조사에서 오존에 대한 한계 노출시간은 담배 'L8'의 경우 24시간, 나팔꽃의 경우 72시간, 담배 'NC82'와 'KF109'의 경우 144시간 내외, 시금치의 경우 216시간으로 추정되었으며, SO?에 대한 한계노출시간은 담배 'L8'의 240시간을 제외하고는 모든 식물에서 240시간 이상으로 추정되었다.

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카로테노이드에 대한 이해

  • 송덕진
    • KOREAN POULTRY JOURNAL
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    • v.33 no.9 s.383
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    • pp.162-163
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    • 2001
  • 식사시간은 하루 중 기다려지는 즐거움이며, 안전하고 영양가 많고 보기 좋고, 냄새 좋고, 맛 좋은 음식을 원하고 있다. 보기좋은 것이 먹기도 좋다고, 일단 음식은 색깔이 좋아야 식욕을 돋을 수 있다. 시금치 색이 노랗거나, 까만 토마토, 노른자 색이 파란 달걀 등은 별로 먹고 싶은 생각이 들지 않을 것이다.

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혈관을 청소하는 3 · 3 ·3요법

  • Park, Hyeon-Yeong
    • 물만먹고자라요
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    • no.17
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    • pp.4-5
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    • 2005
  • 콩을 주원료로 한 된장이나 콩나물, 두부는 심장 질환과 암 발생을 줄여준다. 콩나물, 당근, 시금치, 고구마 등의 녹황색 채소류에는 비타민 C, 베타카로틴 같은 항산화 성분이 풍부해 심혈관계 질환을 예방하고 노화를 방지하는 역할을 한다.

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