KOREAN JOURNAL OF CROP SCIENCE (한국작물학회지)

The Korean Society of Crop Science (한국작물학회)
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Proximate Chemical Composition and Endogenous Gibberellins of Chufa (Cyperus esculentus L.) in Upland and Wetland

  • Kim, Sang-Kuk (Division of Crop Sciences, Gyeongbuk Provincial Agricultural Research and Extension Services (GARES)) ;
  • Choi, Hong-Jib (Division of Crop Sciences, Gyeongbuk Provincial Agricultural Research and Extension Services (GARES)) ;
  • Kang, Sang-Mo (Division of Plant Biosciences, Kyungpook National University) ;
  • Lee, In-Jung (Division of Plant Biosciences, Kyungpook National University) ;
  • Kim, Hak-Yoon (Department of Global Environment, Keimyung University)
  • Received : 2011.03.03
  • Published : 2011.03.30
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Abstract

Proximate chemical components (protein, oil, carbohydrate, ash, fiber, and starch) were determined from tubers grown in upland and wetland conditions. The contents of crude protein, oil, carbohydrate, and starch were higher in upland condition than in wetland condition. Eight gibberellins were commonly identified and quantified in leaves and tuber of chufa grown in wetland and upland field during growing season. Gibberellin content was always higher specifically in the leaves and tubers grown in wetland condition than in those grown in upland condition. The current knowledge of gibberellin biosynthesis suggests that the two endogenous bio-active gibberellins both $GA_1$ and $GA_4$ are differently metabolized according to cultural conditions. Major gibberellin biosynthesis route is ascertained dominantly the non C-13 hydroxylation pathway leading $GA_4$ in chufa plants.

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References

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