用水和30%NaOH对结缕草(Zoysia japonica Steud.)种子进行浸种处理,筛选能快速打破结缕草种子休眠的方法。结果表明:用水浸种6d,8d内发芽率仅为14.70%;用30%NaOH浸种120min,8d内发芽率也仅达28.00%;而用水浸泡2d后再用30%NaOH处理40min,8d内结缕草种子的发芽率达到了82.00%。说明用水和30%NaOH综合处理的方法可以快速有效打破结缕草种子休眠,缩短发芽周期,达到快速出苗的目的。

In order to select the rapid methods for breaking dormancy of Zoysia japonica Steud. seeds, the seeds were treated by soaking in water and 30% NaOH solution. The results showed that at the end of germination period(8d), the germination rate of seeds by soaking in water for 6 d or a 30% NaOH solution for 120 minare 14.70% and 28.00% respectively, but the germination rate of seeds by the composite method(soaking in 30% NaOH solution for 40min after soaking in water for 2d)reaches to82. 00%. Therefore, the composite method can effectively break dormancy and obviously shorten germination period of Z. japonica seeds.