Effects of Different Treatments on Seed Vigor and Dormancy Rate of Setaria glauca
In order to explore the effects of different environments on the germination and dormancy rate of Setaria glauca seeds,the germination potential,average bud length,germination rate and dormancy rate of Setaria glauca seeds were determined by various treatment methods.The results showed that the germination potential,germination rate and dormancy rate of Setaria glauca seeds were 57.71%,74.10%and 9.71%respectively at 25℃.Seed soaking and dry-wet treatment can reduce the germination rate of Setaria glauca seeds,high temperature can break the dormancy of Setaria glauca seeds,and aging treatment can significantly reduce the germination activity of seeds and increase the dormancy rate of seeds.Low concentration NAA promotes seed germination,while high concentration NAA inhibits seed germination;Low concentrations of NaHCO3,Na2CO3 and NaCl had little effect on the germination rate and bud length of Setaria glauca seeds.