前言................................................................................II1范围..............................................................................12规范性引用文件....................................................................13术语和定义........................................................................14种子的采收及选择..................................................................24.1种子采收......................................................................24.2种子选择......................................................................25种子前处理........................................................................25.1活力..........................................................................25.2含水量范围....................................................................26种子保存量........................................................................37种子冷冻方式......................................................................38恢复培养..........................................................................38.1种子解冻处理..................................................................38.2冻后种子活力检测..............................................................38.3萌芽成苗......................................................................3附录A(规范性附录)BTB的配制和保存方法..............................................4参考文献.............................................................................5