• Title/Summary/Keyword: 나병

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Growth and Yield of Azukibean Seed from Virus-infected Plant (바이러스 나병주로부터 얻은 팥의 생육 및 수량)

  • 허남기;김기식;변학수;하건수;최장경
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.40 no.5
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    • pp.569-573
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    • 1995
  • This experiment was carried out to investigate the effect of Azukibean seeds gained from virus-infected plant on the growth and yield of the next generation. In conventional cultivation, plants showed high infection rate, whereas plants in isolation cultivation showed normal growth without virus-infection. It was considered that virus-infection of Azukibean(variety Chungjupat) occurred not because of seed infection but because of insects-vector in growing period. And thread-shaped virus particles were observed in diseased leaf showing mosaic through electron microscope.

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Studies on the disease resistance of tobacco varieties to Black shank, Black root rot Wild fire, Brown spot, CMV-Y and Blue mold -Disease resistance of Korean native varieties- (담배중요병해저항성에 관한 연구 특히 한국재래종에 대하여)

  • Il Hou
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.4 no.1
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    • pp.103-108
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    • 1968
  • Resistance to various diseases of Korean native varieties were investigated in field. The results obtained are summarized as follows: 1) The varieties Ubangtchio and Osib-eubthio were moderately resistant to black shank, but Suantchio, Usultchio and Gwangtchio were slightly resistant. Dixie Bright 101, $H_2$ and Bright Yellow 4 were more resistant to black shank than any of the Korean native varieties. 2) Mokgitchio, Ubangtchio and Osib-eubtchio were moderately resistant to black root rot, but Useultchio Suantchio and Hoetchio were susceptible than Others. 3) Muktchio, Hoetchio and Ubangtchio were slightly resistant to wild fire. 4) Osib-ebthio was highly resistant to brown spot, but Ubangtchio, Hyangtchio and Mokgitchio were moderately resistant and Useultchio was susceptible to brown spot, but it was resistant than Bright ellow 4 or Bernhart 1000-1. 5) Hyangtchio was slightly resistant to CMV-Y. According to these results, except Virus disease, Ubangtchio was resistant to all of the above mentioned diseases. Osib-eubtchio, Hoetchio, Hyangtchio and Suantchio showed proferable disease resistant and these might be well utilized as breeding materials.

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