种子生活力是指种子发芽的潜在能力或种胚所具有的生命力。在播种、交换和调运种子之前,都要及时了解种子的发芽率,以确定是否作为播种材料或引种种源。但一般常规发芽试验需要的时间较长,不能满足实际需要,对休眠种子更是行之无效。尤其是在北方低温多雨的季节里成熟所收获的谷类作物种子休眠现象更为明显。同时在低温条件下贮藏的种子也常出现这 Seed viability refers to the potential of seed germination or embryo has the vitality. Prior to sowing, exchanging and transporting the seeds, the germination rate of the seeds must be known in time to determine whether they are used as sowing material or source. However, the conventional germination test requires a long time, can not meet the actual needs of dormant seeds is even more ineffective. In particular, dormancy of harvested cereals during the cold and rainy seasons in the northern part of the country resulted in more pronounced dormancy. At the same time, it is often found in seeds stored at low temperatures