对贮藏在双低库中的 优 6 3和 70 0 1 s同一种子批的稻种 ,按规定高度进行分层取样 ,观察其各层发芽率和水份有无变化。试验结果表明 ,同一品种同一种子批稻种的堆放高度对种子发芽率变化无显著影响 ;麻袋装稻种堆放高度对种子水份变化也无显著影响 ,但塑料编织袋装稻种堆放高度对种子水份变化有显著影响 The rice seeds of the same sub-batch of seeds which were stored in double-storey low-yielding reservoirs were stratified at a predetermined height to observe the germination rate and the change of water content at each layer. The results showed that the stacking height of the same seed batch had no significant effect on the seed germination rate. The heap height of the sacked paddy had no significant effect on the seed moisture change. However, Water changes have a significant impact