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Home > Archive>Volume 24, Issue 3, 2023 >889-895. DOI:10.13430/j.cnki.jpgr.20221012001
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Study on the Off-site Reproduction and Conservation of Wild Fagopyrum cymosum Germplasm Resources
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Affiliation:

1.College of Life Science and Health， Hunan University of Science and Technology， Xiangtan 411201;2.Institute of Crop Sciences， Chinese Academy of Agricultural Sciences，Beijing 100081;3.College of Food， Sichuan Tourism University， Chengdu 610100;4.Liangshan Academy of Agricultural Sciences，Sichuan Liangshan， 615000;5.Crops Research Institute of Hunan Province，Changsha 410000

Fund Project:

Foundation projects： National Key R&D Program of China（2021YFD1200100， 2021YFD1200105）； Hunan Provincial Science and Technology Department High-level Talent Gathering Project（2020RC5031）

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    Abstract:

    F. cymosum， which is the most widely distributed buckwheat wild resource， represents high genetic diversity in wild population. Due to the environmental changes and human actions that result in the loss of F. cymosum wild resources， it is urgent to protect F. cymosum wild resources. In this study， based on the collected F. cymosum wild resources， we compared the differences between sexual reproduction and asexual reproduction on the off-site reproduction of F. cymosum and discussed the effects of tuber propagation on the off-site propagation of wild buckwheat in different geographical environments. These results showed that the tuber reproduction of F. cymosum was relatively better， and it was conducive to its outcrossing and fruiting after a large population was formed by off-site reproduction. The differences on the altitude of habitat， climate condition and breeding site might cause influence on the germination， growth and reproduction of wild F. cymosum. The geographical conditions and local climate at Zhaojue County of Yunnan province were suitable for the off-site reproduction of F. cymosum. Collectively， these results might provide certain reference for ex situ propagation and conservation of F. cymosum.

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History
  • Received:October 12,2022
  • Revised:November 13,2022
  • Online: April 27,2023
  • Published: April 27,2023
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