Cryopreservation of Mulberry(Morus) Seeds in Liquid Nitrogen(L$N_2$)

건조 및 초저온 처리에 의한 뽕나무 종자의 장기 보존

  • 최영철 (농업과학기술원 잠사곤충부) ;
  • 류근섭 (경북대학교 농과대학) ;
  • 방혜선 (농업과학기술원 잠사곤충부)
  • Published : 2000.06.01

Abstract

To investigate the possibility of crypreservation of mulberry seeds in liquid nitrogen(LN$_2$), characteristics of the seeds were examined after picking mulberry syncarps and drying-heat treatment. Storage in LN$_2$has the potential of providing indifinite preservation of valuable seed germplasm. Determining the tolerance of seeds among given cultivars to LN$_2$cooling and subsequent rewarming is the first step to establishing the feasibility of LN$_2$storage. Seeds of 4 mulberry varities were treated to LN$_2$(-196$\^{C}$) for 24 hours after drying heat treatment. Seed moisture content of Daeryukppong was the highest. As moisture content of mulberry seed was below 1%, storage in LN$_2$was safe. And drying heat treatment for 60 minutes was suitable to prevent decreased germination rate and germination vigor of seeds. The seeds of Cheongilppong were unsuibable to cryopreserve in LN$_2$for longterm storage.

Keywords

References

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