• Title/Summary/Keyword: Egg-plant

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Effect of Host Plants on the Development and Reproduction of Frankliniella occidentalis (Pergande) (Thysanoptera : Thripidae) (기주식물이 꽃노랑총채벌레(Frankliniella occidentalis)의 발육과 생식에 미치는 영향)

  • 이건휘;백채훈;황창연;최만영;김두호;나승용;김상수;최인후
    • Korean journal of applied entomology
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    • v.42 no.4
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    • pp.301-305
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    • 2003
  • This study investigated the ecological characteristics of Frankliniella occidentalis on four horticultural crops. On red pepper leaves, larval developmental period and survival rate of F. occidentalis were 6.4 days and 67%, respectively. While adult female lived longer on cucumber leaves as long as 16 days, on Petal lived 8.1 days. F. occidentalis adult female preferred tomato to eggplant, cucumber and red pepper, and higher number of hatched larva were from leaves of middle part of egg-plant compared with those from other parts. F. occidentalis adult female fed preferably on petal compared with leaves and Petals of eggplant, and among petals of four tested plants, the most preference was those of red pepper.

The Export-import Trends of Agricultural Products in Malaysia (말레이시아 농산물 수출입 동향)

  • Kim, Choong-Soo;Lee, Sok-Young
    • Korean Journal of Agricultural Science
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    • v.33 no.2
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    • pp.97-106
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    • 2006
  • To strengthen the competitiveness of agricultural sector of the Korea, the direction of market trends on agriculture of the Malaysia was reviewed. The most dominating agricultural area in value is palm oil products, and forest products, sea products poultry products and rubber products is in order. The cultivated area of highest two top plants, oil palm and rubber, was about 4.4 million hectares in 2005, but it is decreasing year by year. Comparatively, rice field, pine apple and fruits tree cultivating area is increasing in tendency by the year. Among all the agricultural products, those items such as pork meat, poultry, egg were self-sufficient, rice, fruits, vegetables and sea products were about 70 to 80% self-sufficient, and beef meat, goat meat and milk were below 20% self-sufficient. Most of the grains, such as wheat, rice, barley, corn etc. and their processed food were imported. Also, temperate fruits such as apple, pear, and water cultivated as well as sprouting vegetables are imported. Ornamental products as cutting flowers and orchids are exported to mainly to the Singapore, but high quality temperate fruits and vegetables are imported from Australia. Oil palm exportation covers the balance of the other items imported and obtaining the foreign money as well in Malaysia.

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Colletotrichum coccodes Found in Seeds of Capsicum annuum and Pathogenicity to Solanaceae Plants (고추 종자(種子)에서 검출(檢出)된 Colletotrichum coccodes와 가지과(科) 식물(植物)에 대(對)한 병원성(病原性))

  • Yu, Seung-Hun;Park, Jong-Seong;Oh, In-Seok;Wu, In-Sik;Mathur, S.B.
    • The Korean Journal of Mycology
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    • v.15 no.3
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    • pp.183-186
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    • 1987
  • Colletotrichum coccodes generally regarded as soil borne, was for the first time observed in seed samples of pepper(Capsicum annuum). Detailed descriptions were given on the habit character of the fungus and the morphology of conidia. The fungus caused anthracnose on fruits of pepper, tomato and egg plant under laboratory conditions.

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Host Plants and Lifr Cycle of Rice Black Bug, Scotinophara lurida BURMEISTER(Hemiptera: Pentatomidae) (벼먹노린재(Scotinophara lurida)의 생활사와 기주식물)

  • 이기열;안기수;강효중;박성규;김태수
    • Korean journal of applied entomology
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    • v.40 no.4
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    • pp.309-313
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    • 2001
  • Life cycle and host plants of Scotinophara lurida(BURMEISTER) were studied from 1999 to 2001. Egg of S. lurida was oval-shaped with light-gray in color. Nymphs were reddish brown, dark brown, and brown, and the body was 1.19~7.24mm long, depending on their developmental stages from the 1st to the 5th instar. Adults were black and the body were 9.34mm and 8.47mm long in female laid 30.7 eggs in average for its life span. Developmental period was 4.3 days for eggs, and 45.8 days for nymphs. Total 9 host plant species was identified by the greenhouse observation in Chungbuk province.

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Effectiveness of egg-nymphal predation by a mirid bug, Cyrtorhinus lividipennis REUTER, for control of the brown planthopper (벼멸구(Nilaparrata lugens STAL)의 란 및 유추에 대한 장님 노린재 일종(Cyrtorhinus lividipennis REUTER)의 포식효과)

  • Bae S. H.;Pathak M. D.
    • Korean journal of applied entomology
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    • v.5_6
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    • pp.55-58
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    • 1968
  • 본시험은 1966년 필리핀에 있는 국제수도연구소에서 벼멸구의 생태에 관한 시험을 위하여 벼멸구를 대량으로 집단접종사육하여 오딘 중 cage내 갑자기 벼멸구의 밀도가 줄고 장님노린재가 무수히 번식되고 있는 것을 관찰한 후 Hawaii에 있는 Bishop Museum, Dr. ASHLOCK 씨에이 장님노린재에 대한 동정을 의뢰함과 동시에 벼멸구에 대한 포식성을 조사한 결과 벼멸구의 포식식능력은 장님노린재를 산난된 도엽에 접종하였을 때 5일후 포식난율이 $69.1\%$인대 대하여 벼멸구 고충에 대하여서는 접종 1일 후$61.4\%$, 2일 후 $76.2\%$, 3일 후 $91.0\%$ 4일 후 $93.3\%$의 포식률로서 매우 놀라운 포식능력을 보여주었다. 이 장님노린채는 벼멸구뿐만 아니라 다른 멸구류의 밀도를 제압할 수 있기 때문에 단장조건하에서는 벼멸구류의 피해를 미연에 경감시킬 수 있는 유리한 천적이라고 생각되며, 금후 이의 실제적인 이용면에 대한 연구가 기대된다.

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Application of Electron Beam Irradiation for Insect Pest Control in Agricultural Products Quarantine [Case study: Myzus persicae and Planococcus citri (Risso)] (농산물 수출입 검역시 병해충 방제를 위한 전자선 조사기술의 응용(사례연구: 귤가루깍지벌레와 복숭아혹진딧물))

  • Lee, Gyeong-Ae;Park, Min-Goo;Cho, Jae-Young
    • Journal of Applied Biological Chemistry
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    • v.57 no.2
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    • pp.141-144
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    • 2014
  • The effects of electron beam irradiation on control of Myzus persicae and Planocococcus citri (Risso) were evaluated with the changes of mortality, emergence rate, fecundity, and egg hatchability. As a result of this study, M. persicae and P. citri (Risso) was not directly affected by electron beam irradiation with low doses (30, 60, 90, and 120 Gy) but the irradiation had effects on inhibition of development and reproduction of the pests.

A Comparison of Plasma Lipid Levels between Vegetarians and Non Vegetarians (채식인과 비채식인간의 혈장지질 수준에 관한 연구)

  • Song, Sook-Ja;Lee, Hi-Sung
    • Journal of the Korean Applied Science and Technology
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    • v.4 no.1
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    • pp.23-36
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    • 1987
  • Plasma levels of lipids were observed in vegetarians and non-vegetarians in order compare the values between the two groups with different dietary habits, and among different age groups. All 162 vegetarians and 95 non-vegetarians were selected for this study. In detail, male vegetarians subjects were devided into three groups according to their ages, 20's, 30's and 40's. And three control groups were also selected at matching basis. Two groups each were selected for female subjects in their 20's and 40's. All ten groups were adopted and the lipids levels were compared appropriately. Dietary habits of vegetarians were shown to be fairly strict. They consumed almost no animal foods and depended largely upon plant foods with emphasis on unrefined cereals and legumes. on the other hand, non-vegetarians consumed meats, fish egg and milk frequently. Most of plasma lipid levels measured were found to be lower in vegetarians and tended to be higher for the higher age groups of both vegetarians and non-vegetarians. Although the lipids levels of non-vegetarians were higher than the ones for vegetarians, the levels were within optimal range, and it can be concluded in this study that the plasma lipid levels of non-vegetarians under Korean dietary pattern are quite acceptable.

Trends in Canadian Dietary Supplements Enhanced with Female Hormones Required in Response to the COVID-19 Pandemic (코로나19 (COVID-19) 팬데믹에 대응하여 요구되는 여성호르몬이 강화된 캐나다산 식이 보충제의 동향)

  • Shim, Youn Young;Reaney, Martin J.T.;Lee, Hak Sung;Kim, Hye-Jin
    • Journal of the FoodService Safety
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    • v.3 no.1
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    • pp.1-7
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    • 2022
  • As one of the post-COVID-19 response strategies, representative processed products derived from the natural plant material flaxseed and a dietary supplement fortified with female hormones (estrogens) were developed in Canada, an eco-friendly country was introduced. These products were: 1) flaxseed oil to help maintain cognitive and immune function, 2) Lignan50, a substance with effects similar to estrogen, a female hormone, 3) XanFlax, a thickener for confectionery/baking and egg substitute, 4) MediFlax, a constipation reliever, 5) SesaFlax, which has a fragrance similar to sesame, 6) Linusorb, which is effective for its pharmaceutical anti-inflammatory/anti-oxidation and anti-aging properties, and 7) LinuLyte, a water/electrolyte supplement containing high dietary fiber. It is expected that these dietary products will help maintain and promote health as part of a response to the COVID-19 pandemic.

New Mutants for Endosperm and Embryo Characters in Rice (새로운 미립질 돌연변이 창출)

  • Kim, Kwang-Ho;Heu, Mun-Hue;Park, Sun-Zik;Koh, Hee-Jong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.36 no.3
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    • pp.197-203
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    • 1991
  • Several types of endosperm and embryo mutants were induced by the treatment of MNU (N -methly- N -nitrosourea) on fertilized egg cell of rice plant. These mutants were named as dull. waxy, white core, floury, sugary, shrunken, colored seed coat and giant embryo according to their appearence, micro-scopic feature on SEM and amylose content. White cored mutant was the most frequent one among them. All of the mutants were segregated as controlled by a single recessive gene except 47320 (dull). Futher studies on the genetics and physico-chemical properities of the mutants are ongoing.

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Development of the Trichomes in Floating Leaves of Salvinia Species (생이가래속(Salvinia) 부유엽 모용의 분화발달)

  • Seo, Ae-Ri;Kim, In-Sun
    • Applied Microscopy
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    • v.38 no.2
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    • pp.117-124
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    • 2008
  • Salvinia is an aquatic plant forming dimorphic leaves that have been modified into floating and submerged leaves. A air of floating leaves plays an important role for the floating and photosynthesis while the submerged leaves, which are lim and long, have the form and function of root. Many aquatic plants develop trichomes in the epidermis but in Salvinia, richomes grow densely in the epidermis of the dimorphic leaves. The present study examined the differentiation pattern of trichomes developing in the floating leaves of S. natans and S. molesta by scanning and transmission electron microscopy. Trichomes developing in the floating leaves of Salvinia showed very different patterns. In S. natans, they were arranged in a V-shape form, having 20${\sim}$25 rows at $18{\sim}25^{\circ}$ on both sides of the lamina divided by the midrib in the floating leaf. In each row, 8${\sim}$10 oval-shaped cells, $200{\sim}290{\mu}m$ in length, were arranged in a spiral fashion. Four trichomes of this form made a trichome unit, but their apical parts were separated from one another and developed into the so-called 'knuckle-crane' type. On the other hand, in S. molesta, trichomes differentiated in a unique pattern quite different from those of S. natans. At the early stage of differentiation, trichomes protruded from the epidermis and then 4${\sim}$6 cylindrical cells grew $400{\sim}600{\mu}m$ long and the four trichomes formed as an unit. The four grouped trichomes were interconnected through their apex and developed in the 'egg-beater' type. Then $300{\sim}600{\mu}m$ long multi-cellular stalk cells grew and protruded out of the epidermal surface from the basal part of the trichomes. Such a structural characteristic of trichomes is considered to play a very important role along with the aerenchyma tissue in the leaf mesophyll tissue for the floating of Salvinia on the water surface.