생명과학회지 (Journal of Life Science)

  • 제20권7호
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  • Pages.1127-1133
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  • 2010
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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갓 품종간의 형질 및 광합성 변이

Variation of Characteristics and Photosynthetic Rates among the Species of Leaf Mustard (Brassica juncea)

  • Lee, In-Ho (Department of Horticulture, Sunchon National Univ.) ;
  • Park, Jong-In (Department of Horticulture, Sunchon National Univ.) ;
  • Jung, Gun-Ho (National Institute of Crop Science, RDA) ;
  • Nou, Ill-Sup (Department of Horticulture, Sunchon National Univ.)
  • 투고 : 2010.05.08
  • 심사 : 2010.06.11
  • 발행 : 2010.07.30
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초록

총광합성율의 변이는 순광합성율에 호흡율을 더해서 구한 것으로 계통간의 변이는 순광합성율과 대동소이하였으며 rosetteness는 초장, 초고 그리고 상대엽면적(SLA)과는 고도로 유의한 정의 상관을 보여 초장 및 초고가 클수록 잎의 부착밀도가 낮고 잎이 엷은 것으로 나타났다. 식물의 지상부 생장량은 호흡율에 의해 보다 크게 영향을 받는 것으로 나타났는데 이는 호흡이 잎 뿐 아니라 줄기에서도 일어나는데 기인한 것으로 사료된다. 그리고 엽의 부착밀도가 낮은 계통들이 지상부 생육이 좋았는데, 이것은 광합성율을 높이기 위해서는 상대엽면적(SLA)이 큰 즉, 엽의 두께가 얇은 계통을 선발하는 것이 유리함을 말해 준다.

The total photosynthetic rate in leaf mustard lines, which was calculated as the sum of the photosynthetic rate and the respiration rate, was not significantly different from their photosynthetic rate. Plant height, standing of rosetteness, showed a similar change to its specific leaf area (SLA). With increasing the plant height, leaf density increased and leaf color was lighter. It was found that shoot dry weight of leaf mustard was more affected by respiration. Also, it was hypothesized that respiration occurred not only in the leaf but also the stem. It was found that mustard lines whose leaf density was low showed a higher shoot growth. From this result, it was concluded that selection of a leaf mustard line with a larger SLA and lower leaf thickness could be effective in increasing photosynthetic rate.

키워드

참고문헌

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피인용 문헌

  1. Breeding of F1 Hybrid for Oriental Mustard(Brassica juncea L. Czern) Using the Cytoplasmic Male Sterile Line vol.52, pp.6, 2018, https://doi.org/10.14397/jals.2018.52.6.27