preserved for medium to long terms under controlled storage conditions.The seeds are dried to low moisture content(5-7%)and packed in hermetically sealed containers glass bottles,aluminium metal cans,etc.) Medium-term storage(5-10 years):0~-10C >Long-term storage(over 10 years):-20C Plant tissue culture repository Minimal growth and cryopreservation(storage in liquid nitrogen,-196C)are the two main features of in-vitro conservation technology 外单位赠予 田间收集 计算机化数据室 所基因库 厂发芽生长 研究所 增殖 中心 交流 农艺评价 品质 定等 基因库登记资源的评价及操作程序 7.Salient (important)features of local germplasm ◇Good agronomic base ◇Genetic variability ◇Wild species ◇Local taste6 preserved for medium to long terms under controlled storage conditions. The seeds are dried to low moisture content (5-7%) and packed in hermetically sealed containers ( glass bottles, aluminium metal cans,etc.)  Medium-term storage(5-10 years): 0~ -10℃  Long-term storage( over 10 years): -20℃ Plant tissue culture repository Minimal growth and cryopreservation(storage in liquid nitrogen, -196℃) are the two main features of in-vitro conservation technology 基因库登记资源的评价及操作程序 7. Salient (important)features of local germplasm ◇Good agronomic base ◇Genetic variability ◇Wild species ◇Local taste