• Title/Summary/Keyword: 소독처리

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The disinfective effect of garlic extract against Bakanae Disease (마늘 추출물의 벼 키다리병에 대한 종자소독 효과)

  • Sung, Chang-Keun;Choi, Ji-Ho
    • Korean Journal of Agricultural Science
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    • v.31 no.1
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    • pp.45-52
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    • 2004
  • Bakanae Disease is an abnormal plant growth caused by Gibberella fujikuroi. The infected plants several inches taller than normal plants in seedbed and field. To control bakanae disease, we made a seed disinfectant from garlic extract. And we isolated allicin($C_6H_{10}OS_2$) from garlic extract and the content was 0.62%. In order to develop efftive seed disinfectant from Garlic extract, we compared it with three seed disinfectants(benomyl, prochloraz, fludioxonil). Prochloraz, fludioxonil and Garlic wettable powder controlled Bakanae disease of rice very well, while benomyl did not suppress the disease enough. Water temperature was turned to be an important factor for controlling the disease by treating seed disinfectants. It was confirmed that the seed disinfectant from garlic extract can be used as non-toxic agricultural medicines.

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Effect of Fungicide Benoram Seed Treatment on Germination, Growth, and Yield in Summer-Type Soybean (종자소독제 Benoram 처리가 하대두의 발아, 후기생육 및 수량에 미치는 영향)

  • 정길웅;주정일
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.2
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    • pp.166-173
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    • 1993
  • Seed infection to pod and stem blight (Diaporthe phaseolorum) is severe at summer type soybeans maturing at hot and humid conditions. In order to increase germination and plant stand, this experiments were evaluated the effects of fungicide Benoram(Benomyl 20% ${\pm}$ Thiram 20%) seed treatments with different seed sizes on emergence yield at field conditions, and with different infection degrees to pod and stem blight on germination in laboratory. Benoram treatment on seed was improved emergence rate and elongated hypocotyl not increased growth and yield. It was clearly improved length but germinations and germination speed by Benoram fungicide treatment on severely infected seed however was not improved germination rate at good quality of seeds and the effect was higher at large seed cultivar than small ones.

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Concentration- and Time-Dependent Effect of Disinfectant Treatment on Sorghum Seeds (소독제의 침지시간 및 희석농도가 수수 발아 및 오염율에 미치는 영향)

  • Kim, Kyeongmin;Choi, Se-Hyun;Kim, Changsoo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.65 no.2
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    • pp.124-129
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    • 2020
  • Sorghum (Sorghum bicolor L.) is an annual crop belonging to Poaceae, and is the fifth-largest crop after maize, wheat, rice, and barley. This study was conducted to establish an efficient seed sterilization method to manage fungal or bacterial infections of germinating sorghum seeds. Two varieties of sorghum seeds (BTx623 and SAP317) were treated with benomyl-thiram and thiophanate-methyl triflumizole which are known to be effective disinfectants for sorghum seeds. For SAP317, the highest germination rate was accomplished with 24-hour treatment of both chemicals at a 200× dilution rate. For BTx623, the highest germination rate was observed after 24-hour treatment at a 200×/400× dilution rate for benomyl-thiram and control/200× for thiophanate-methyl triflumizole. Consequently, the optimal treatment for the seed disinfection in sorghum seeds may be at the dilution rate of 200× or 400× for 24 hours.

Improving Efficiency and Effectiveness of Disinfection by Soaking Seeds before Rice Seed Disinfection (벼 종자소독 전 침종에 따른 소독효과 및 효율성 향상)

  • Yun, Yeotae;Chung, Chongtae;Kim, Gyucheol;Kim, Byungryun
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.67 no.3
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    • pp.137-146
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    • 2022
  • Seed disinfection is a necessary process to decrease Bakanae disease in rice and is carried out at 30℃ to increase disinfection efficiency. However, the length of sprout after seed disinfection is not suitable for sowing, so additional processes such as seed soaking is needed. For this reason, this study was conducted to develop the efficient and effective seed disinfection method. When the seed disinfection finished after soaking seeds in cold water for 2 days, length of sprout was about 1.0 mm and sowing can be done without additional processes. In addition, the incidence of Bakanae disease was greatly reduced by 64% compared to conventional method. In order to find out why the newly developed method (disinfection after soaking) is more efficient than conventional method, soaked and not soaked seeds were stained using methylene blue staining. It was found that soaked seeds were more easily stained with about 50% of internal and external endosperm stained. Therefore, pesticide can be absorbed easily into internal endosperm of soaked seeds and efficiently destroy the spore of pathogen. As a results of this study, newly developed method will be useful as it can improve efficiency of agricultural work and also effectively decrease Bakanae disease compared to conventional method.

Efficacy of Chemical Sanitizers in Reducing Levels of Foodborne Pathogens and Formation of Chemically Injured Cells on Cabbage (양배추에 오염된 병원성 미생물의 저해 및 화학적 손상세포 생성에 있어서의 화학적 살균소독제의 효과)

  • Choi, Mi-Ran;Oh, Se-Wook;Lee, Sun-Young
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.10
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    • pp.1337-1342
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    • 2008
  • This study was conducted to investigate effects of chemical sanitizers on inhibiting foodborne pathogens, such as Listeria monocytogenes (L. monocytogenes), Salmonella Typhimurium (S. Typhimurium), and E scherichia coli O157:H7 (E. coli O157:H7), on cabbages. Cabbages were inoculated with the culture cocktail of pathogens and treated with water, 100 ppm commercial chlorine, and 50, 100, and 200 ppm chlorine dioxide ($ClO_2$) for 1, 5, and 10 min at room temperature ($22{\pm}2^{\circ}C$). Treatments with water did not significantly reduce levels of three pathogens whereas other treatments with chemical sanitizers significantly reduced levels of three pathogens. Treatment with 200 ppm $ClO_2$ for 10 min was the most effective at inhibiting pathogens and reduction levels were 1.90, 1.92, and 1.98 log CFU/g for L. monocytogens, S. Typhimurium, and E. coli O157:H7, respectively. Levels of reduction were increased with the increase of $ClO_2$ concentrations. When chemically injured cells were investigated, there were no significant differences on the levels of injured cells between before and after treatment with commercial chlorine and $ClO_2$. These results suggest that $ClO_2$ can be used as an alternative sanitizer for reducing pathogens on fresh produces.

Effect of Sodium Hypochlorite Treatment on Incidence of Seed-borne Fungi in Several Crop Seeds (Sodium Hypochlorite 처리가 몇가지 작물의 종자소독에 미치는 효과)

  • Ku, Ja Hyeong;Yu, Seung Hun;Lee, Hyang Burm
    • Korean Journal of Agricultural Science
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    • v.20 no.1
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    • pp.18-24
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    • 1993
  • This experiment was focused on determining the potential of sodium hypochlorite (NaOCl) as fungicide against seed-borne fungi. Effects of NaOCl to control seed-borne fungi were compared to the those of Benlate T in several crop seeds. 1. The effect of NaOCl on disinfection of sesame seeds without imparing germination was highest in the range of 1-2% solution for 10 min. Also, a 30 min immersion of rice seed in 1-2% solution reduced incedence of seed-borne fungi. 2. Alternaria spp. in seeds of radish and chinese cabbage and Colletoricum spp. in pepper were significantly reduced by a 10 min immersion of seeds in 1% NaOCl. 3. The effective control range of NaOCl for seed-borne fungi was much wider than that of Benlate T in sesame seeds. No clear difference between chemicals was found in rice seeds. However, germination of seeds were impaired at 1-2% NaOCl immersion for more than 1 hour.

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Standard of Imports and Exports in Wood Packing Material (나라별 수출입 화물 목재포장재 소독처리 기준)

  • Korea Packaging Association INC.
    • The monthly packaging world
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    • s.150
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    • pp.129-139
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    • 2005
  • 한국무역협회(회장 김재철)가 주최하고 국립식물검역소, 한국수출입식물방제협회, 한국중량물포장협회, 한국파렛트협회가 주관하는 수출입 화물 목재포장재 검역 설명회가지난 달 6일 트레이드타워 대회의실에서 열렸다. 이번 설명에서는 $\Delta$ 우리나라 수입목재포장재의 검역요건 $\Delta$ 목재포장재 수출입절차 및 주의사항 $\Delta$ 목재포장재 대체용기를 소개했다. 본 고에서는 나라별 수출∙입 화물 목재 포장재 소독처리 기준을 살펴본다.

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Disinfection of Nuclear Polyhedrosis Virus and Yellow Muscardine pathogen (Beauveria bassiani) of Silkworm, Bombyx mori L., by Formalin Fumigation (누에고름병 바이러스와 흔굳음병균에 대한 포르말린 훈연소독)

  • 이영근;이재창
    • Journal of Sericultural and Entomological Science
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    • v.32 no.2
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    • pp.105-109
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    • 1990
  • The disinfectivity of formalin fumigation was tested against silkworm nuclear polyhedrosis virus and yellow muscardine pathogen, Beauveria bassiana. The inactivation of the virus was acquired when it was fumigated by adding 30g of potassium permanganate to 75$m\ell$ of formalin per 3.3$m^2$ of rearing room area and viability of the yellow muscardine pathogen was also lost with the same treatment of fumigation. It was also proved that the fumigation didn't give and damage to silkworm larvae when it was applied 2 or 3 times to grown larvae.

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