Each index of the treatment with the 80% relative soil water rate was superior to others,so it is suggested that the best soil water rate for seed sprouting of IAPAR9 was 80%.

• 相对含水率80%25处理的各项指标均优于其他处理,故IAPAR9种子萌发的最佳土壤含水率在土壤田间持水率的80%25左右。