• 제목/요약/키워드: pepper plant (Capsicum annuum).

검색결과 307건 처리시간 0.029초

시판 고추품종에 대한 뿌리혹선충 저항성 검정 (Resistance of Commercial Pepper Cultivars to Root-knot Nematodes)

  • 김동근;권태영;류영현;연일권;허창석
    • 식물병연구
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    • 제18권4호
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    • pp.370-375
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    • 2012
  • 국내에서 시판되고 있는 고추 92품종을 이용하여 국내 시설재배지에서 가장 많이 분포하고 있는 두 종의 뿌리혹선충, Meloidogyne arenaria와 M. incognita에 대한 저항성을 검정하였다. M. arenaria에는 시판 고추 품종 모두가 저항성이었으며(난낭수 0-3/plant), M. incognita에는 모두 감수성이었다(난낭수 76-678/plant). M. incognita에는 모두가 감수성이었으나 품종별로 약간의 차이는 있었는데 거목(동부한농)과 신태풍(명산종묘) 2품종은 난낭이 포기당 100개 이하로 발생되어 불꽃처럼(누넴종묘) 등 29품종의 포기당 난낭수 300개 이상에 비해 상대적으로 적었다. 뿌리혹선충 피해가 심한 시설재배지 중에서, M. arenaria가 감염된 농가에서는 윤작작물로 고추를 심는 것을 적극 추천하고 반면, M. incognita가 감염된 포장에 고추는 윤작작물로 적절하지 않다.

Variation of Iron Content and Ferritin Distribution during Development Stage under Conditions of Iron Nutritional Status from Hydroponic Culture in Red Pepper ( Capsicum annuum L. )

  • Kim, Young-Ho;Lee, Young-Ok;Nou, Ill-Sup;Shin, Ill-Yong;Kameya, Toshiaki;Saito, Takashi;Kang, Kown-Kyoo
    • Plant Resources
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    • 제1권1호
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    • pp.1-5
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    • 1998
  • Total iron content and ferritin distribution have been determined in red pepper(Capsicum annuum L.) during development stage under conditions of iron nutritional status from hydroponic culture. Color of the leaves become chlorotic on iron deficient and high concentration. The plant height on each iron concentration had retarding effect at concentration lower than $25\muM$ and greater than 125$25\muM$. In normal green leaves. Total iron content was almost constant with a mean value of $2.5\mumole$ of iron/mg of dry matter, except at 63day, for which it increases slightly to $4\mumole$. Howere, iron content of chlorotic plants grew on iron free medium was not almost detectable. Also in post chlorotic leaves(++Fe), iron content was evidently increase unitl 7days after transfer on liquid medium, but decreased from after 14days. Also, ferritin protein analysed total protein extracts prepared from leaves of different ages using antibodies raised against ferritin protein. Ferritin protein deereased progressively during the first week of germination and was not detectable in vegetative tissues. Ferritin protein in post chlorotic leaves wasevidently strongly cnhanced until 11days after transfer on liquid medium but decreased until the leves became chlorotic.

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