• Title/Summary/Keyword: cauliflower

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Technical Development for production of Good Quality and Standardization of Overwintering Cauliflower and Broccoli in Subtropical Cheju (난지 월동 꽃양배추 밑 녹색꽃양배추의 고품질 규격품 생산 기술 개발)

  • 박용봉;지성한;안동혁;장전익
    • Journal of Bio-Environment Control
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    • v.7 no.3
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    • pp.191-205
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    • 1998
  • Among cauliflower, ‘Snow king’ and ‘Snow crown’, which are early maturing cultivars, showed active early vegetative growth. However, ‘Snow dress’ showed good curd characteristics and in marketability, ‘Green beauty’was superior and can also be grown in Cheju. All the cauliflower and broccoli Plots transplanted on Sep. 3 and on Sep. 17 had fewer number of days from the planting date to the harvesting date than did the plots transplanted on Oct. 1. h the case of broccoli, those transplanted on Oct. 1 had the highest marketability. In the case of cauliflower cultivars, ‘Snow dress’a late maturing cultivar, demonstrated the greatest reduction in growing stage when cultivated in an unheated plastic film houses and broccoli, growing stage is similar between those grown in an open field and those grown in unheated plastic film houses. For all the cauliflower and broccoli, the contents of vitamin A and C showed no significant difference between those grown in an open field and those grown in unheated plastic film houses.

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Cultivation of Cauliflower Mushroom (Sparassis crispa) Using Coniferous Sawdust-based Media with Barley Flours (보릿가루가 첨가된 침엽수 톱밥을 이용한 꽃송이버섯 재배)

  • Park, Hyun;Lee, Bong-Hun;Oh, Deuk-Sil;Ka, Kang-Hyeon;Bak, Won-Chull;Lee, Hak-Ju
    • Journal of Korea Foresty Energy
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    • v.24 no.2
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    • pp.31-36
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    • 2005
  • Cauliflower mushroom (Sparassis crispa) is an edible mushroom that shows remarkably high contents of $1,3-{\beta}-D-glucan$ compared to other edible mushrooms. The mushroom is known to give high antitumor and immunologic activities, thus the mushroom is recently cultivated in Japan and Korea. However, cultivation methods are being kept in secret or under patents by some companies with complicated procedures. This study was conducted to solve the problem by providing a simple method for the cultivation of cauliflower mushroom. We could produce the mushroom using sawdust-based media of Larix leptolepis, Pinus densiflora and P. koraiensis with addition of barley flours and sugar. The ratio of the sawdust : barley flours : sugar used for this study was 80:20:3 in dry-weight base, and the water content was adjusted as 65%. The productivity was somewhat different among the species of sawdust media and the strains of Sparassis crispa for the cultivation, and the mushroom production reached up to 177g from 650g base(productivity : 27%). Thus, this medium is strongly recommended as a practical cultivation method for cauliflower mushroom. By the way, further study for the determination of adequate concentration of barley flour and the selection of proper strain for each sawdust species is needed.

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Physiology and Growth of Transgenic Tobacco Plants Containing Bacillus subtilis Protoporphyrinogen Oxidase Gene in Response to Oxyfluorfen Treatment (Bacillus subtilis Protoporphyrinogen Oxidase 유전자 형질전환 담배의 Oxyfluorfen 처리에 대한 생리 · 생장반응)

  • Lee, J.J.;Kuk, Y.I.;Chung, J.S.;Lee, S.B.;Choi, K.W.;Han, O.S.;Guh, J.O.
    • Korean Journal of Weed Science
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    • v.18 no.3
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    • pp.237-245
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    • 1998
  • The transgenic tobacco (Nicotiana tabacum cv. Xanthi) plants containing Bacillus subtilis protoporphyrinogen oxidase gene with cauliflower mosaic virus 35S promoter have recently been generated by using Agrobacterium-mediated gene transformation. The nontransgenic and the transgenic tobacco plants were compared with respect to responses to diphenyl ether herbicide oxyfluorfen and under various environmental conditions. Both cellular leakage and lipid peroxidation caused by oxyfluorfen were found to be less in the transgenic than in the nontransgenic plants. Growth responses of the transgenic plants under various temperature, light, and water conditions were almost the same as those of the nontransgenic plants, although the transgenic plants exhibited slightly more retarded growth under low light or saturated water condition. These results revealed that the transgenic tobacco plants containing B. subtilis protoporphyrinogen oxidase gene under cauliflower mosaic virus 35S promoter were relatively resistant to oxyfluorfen and exhibited normal growth pattern. Possible mechanism of resistance to oxyfluorfen in the transgenic plants is also discussed.

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Diamond Film Growth by Vapor Activation Method Using ${CH_3}OH/{H_2}O$ Gas (HFCVD법에 의한 ${CH_3}OH/{H_2}O$ 혼합기체의 다이아몬드 박막성장에 관한 연구)

  • Lee, Gwon-Jae;Go, Jae-Gwi
    • Korean Journal of Materials Research
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    • v.11 no.12
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    • pp.1014-1019
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    • 2001
  • The diamond thin film was deposited on Si(100) substrate from$CH_3OH/H_2O$mixtured gas using a hot filament chemical vapor deposition(HFCVD) method. The deposition condition for samples has been varried with the$CH_3OH/H_2O$composition. Scanning electron microscopy(SEM) and Raman spectroscopy has been employed for the sample analysis. The diamond sample has been obtained below 20Pa with$CH_3OH/H_2O$mixtured gas. The crystallinity of diamond film improved as the composition $CH_3OH$decreases from 60Vol% to 52Vol%, and the sample structure changed from the cauliflower to the diamond structure. But the sample structure was becomes cauliflower at 50Vol% of in$CH_3OH$ in the $CH_3OH/H_2O$. It was shown that the$CH_3OH$ has threshold composition.

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Antimutagenic Effect of Various Cruciferous Vegetables in Salmonella Assaying System (Salmonella 실험계의 십자화과 채소류의 항돌연변이효과)

  • 박건영;이선미;이숙희
    • Journal of Food Hygiene and Safety
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    • v.12 no.4
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    • pp.321-327
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    • 1997
  • The antimutagenic effects of juices and methanol extracts from cruciferous vegetables (cabbage, red cabbage, Korean cabbage, kale, cauliflower, broccoli, radish root, leafy radish, rape leaves and shepherd's purse) on the mutagenicity induced by aflatoxin B1(AFB1) and N-methyl-N'-nitrosoguanidine(MNNG) were studied using Salmonella assay system. In the case of juices from the cruciferous vegetables, the juices of cabbage, kale, cauliflower and radish root in the concentrations of 50, 200 and 500 ${mu}ell$/plate considerably decreased the mutagenicity induced by AFB1, and the juices of cabbage and broccoli in the concentrations of 200 and 500${mu}ell$/plate significantly reduced the mutagenicity induced by MNNG. The antimutagenic activities of the juices against AFB1 were stronger than those against MNNG. In the case of methanol extracts from the cruciferous vegetables, the methanol extracts of kale, broccoli and shepherd'purse appeared to inhibit the mutagenicity induced by AFB1 and MNNG in Salmonella typhimurium test strains. The effects of the juices against mutagens quite different from ones of the methanol extracts. The juice of cabbage showed antimutagenicity, but its methanol extract was less effective. However, both juices and methanol extracts from kale and broccoli exhibited strong antimutagenic activities against the mutagens.

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Effect of Substrate Temperature on the Morphology of Diamond Films by MPCVD (기판 온도가 다이아몬드 박막의 Morphology에 미치는 영향)

  • Park, Yeong-Su;Kim, Sang-Hun;Kim, Dong-Ho;Lee, Jo-Won
    • Korean Journal of Materials Research
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    • v.4 no.4
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    • pp.385-392
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    • 1994
  • The morphology variat~on of diamond thin films, grown by microwave plasma chem~cal vapor deposition, was investigated. With increasing substrate temperature from $550^{\circ}C$ to $750^{\circ}C$, the film morphology was changed from {111} to {100}, and then to cauliflower. The nondiamond components in the film increased with increasing temperature. Micro Raman spectrum suggested that the nondiamond components might exist along the boundaries of d~amond particles. The texture of diamond films, analyzed by X-ray diffraction, was varied from random orientation to <100> , and finally to <110> with increasing substrate temperature.

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Influence of Thermal Treatment on Surface Morphology of Tin Dioxide Thin Films (열처리에 따른 SnO2 박막의 표면형상)

  • Park, Kyung-Hee;Ryu, Hyun-Wook;Seo, Yong-Jin;Lee, Woo-Sun;Hong, Kwang-Jun;Park, Jin-Seong
    • Korean Journal of Materials Research
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    • v.13 no.7
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    • pp.442-446
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    • 2003
  • Tin dioxide ($SnO _2$) thin films were deposited at $375^{\circ}C$ on alumina substrate by metal-organic chemical vapor deposition. A few hillocks like a cauliflower were observed and the number of hillock on thin film surface increased with annealing temperature in air atmosphere. The oxygen content and the binding energy during air annealing at$ 500^{\circ}C$ came to close the stoichiometric $SnO_2$. The cauliflower hillocks seem to be the result of the continuous migration of the tiny grains to release the stress of an expanded grain. Sensitivity of CO gas depended on annealing temperature and increased with increasing annealing temperature.

Deposition of Yttria Stabilized Zirconia by the Thermal CVD Process

  • In Deok Jeon;Latifa Gueroudji;Nong M. Hwang
    • The Korean Journal of Ceramics
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    • v.5 no.2
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    • pp.131-136
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    • 1999
  • Yttria stabilized zirconia(YSZ) films were deposited on porous NiO substrates and quartz plates by the thermal CVD using $ZrCl_4, YCl_3$ as precursors, and $O_2$ as a reactive gas at atmospheric pressure. The evaporation temperature of $ZrCl_4$ was varied from $250^{\circ}C$ to $550^{\circ}C$ while the temperatures of $YCl_3$ and the substrate were varied from $1000^{\circ}C$ to $1030^{\circ}C$. As the evaporation temperature of $ZrCl_4$ increased, the deposition rate of $ZrO_2$ decreased, contrary to our expectation. As a result of the decreased deposition rate of $ZrO_2$, the yttria content increase. The high evaporation temperature of $ZrCl_4$ makes the well-faceted crystal while the low evaporation temperature leads to the cauliflower-shaped structure. The dependence of the evaporation temperature on the growth rate and the morphological evolution was interpreted by the charged cluster model.

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Role of Intergenic and 3'-Proximal Noncoding Regions in Coat Protein Expression and Replication of Barley yellow dwarf virus PAV

  • Moon, Jae-Sun;Nancy K. McCoppin;Leslie L. Domier
    • The Plant Pathology Journal
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    • v.17 no.1
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    • pp.22-28
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    • 2001
  • Barley yellow dwarf virus PAV (BYDV-PAV) has a 5.7-kb positive-sense single-stranded RNA genome that contains six open reading frames (ORFs). BYDV-PAV produces three subgenomic RNAs (sgRNAs). The largest of which encodes the coat, 17-kDa, and readthrough proteins from two initiation codons. To investigate the role of intergenic and 3'-proximal noncoding regions (NCRs) in coat protein (CP) expression and BYDV-PAV replication, a full-length infectious cDNA of the RNA genome of an Illinois isolate of BYDV-PAV was constructed downstream of the Cauliflower mosaic virus-35S promoter. Linear DNA molecules of these cDNAs were infectious, expressed the 22-kDa CP, and produced both genomic RNA sgRNAs in ratios similar to those observed in protoplasts inoculated with viral RNA. The portion of 5'NCR of sgRNA1 between ORFs 2 and 3 was not required for, but enhanced translation of CP from ORF3. Mutants containing deletions in the NCR downstream of ORF5 failed to replicate in oat protoplasts. These results indicate that an intact 3$^1$NCR is required for BYDV-PAV replication.

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