한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제48권1호
  • /
  • Pages.8-12
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  • 2003
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
권호 표지

Relationship between Pod Development and Endogenous Cytokinin Content of the Floral Organ in Peanut

  • Cheong, Young-Keun (National Honam Agricultural Experiment Station, RDA) ;
  • Doo, Hong-Soo (National Honam Agricultural Experiment Station, RDA) ;
  • Park, Ki-Hun (National Honam Agricultural Experiment Station, RDA) ;
  • Cho, Sang-Kyun (National Honam Agricultural Experiment Station, RDA) ;
  • Ryu, Jeom-Ho (Faculty of Biological Resources Science (Institute of Agricultural Science & Technology), Conbuk National University) ;
  • Lee, Moon-Hee (National Honam Agricultural Experiment Station, RDA)
  • 발행 : 2003.03.01
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초록

To find out the relationship between pod development and cytokinin contents during reproductive stage of peanut, the cytokinin contents, trans-zeatin ribo-side (t-ZR) and dihydrozeatin riboside (diZR), were investigated at 0, 7, 14, 21 and 28 days after flowering (DAF). The amounts of t-ZR and diZR in cotyledon and first branch among primary branches were 3, 448 pmol/g (FW) and 4, 824 p/g (FW), respectively, which were higher than those of other branches. The t-ZR and diZR contents of lower parts on the branch from cotyledon node at 7 DAF were 579 pmol/g (FW) and 2, 028 pmol/g (FW), respectively, which were higher than those of upper parts. The cytokinin contents of reproductive organs as flowering progressed were increased at 0 and 14 DAF on branch and position of node. The cytokinin contents of upper part with pruning the lower part on the branch from cotyledon node were high 112-337% at 7 DAF and 14 DAF compared with those of the control. In case of remove the upper part of the first internode on main axis, t-ZR contents was 4.7 times higher than diZR contents at 7 DAF. The pod setting rate of flower and position on the branch from cotyledon node was closely related to the cytokinin contents during floral reproductive stage.

키워드

참고문헌

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