Effect of Drought Stress on Seed Germination of Two Different Genotypes Aquilegia vulgaris
In order to explore the drought resistance of two different genotypes of Aquilegia vulgaris,the seeds of Aquilegia vulgaris were treated by 5%,10%,15%,20% and 25% of PEG-6000.The results showed that the germination rate,germination potential,relative germination rate and germination index of seeds with two different genotypes were significantly decreased under drought stress(P<0.05).In addition,low concentration of PEG-6000 promoted the germination peak earlier,and accelerated the process of seed germination,while high concentration was opposite.At the same concentration of PEG-6000,Aquilegia vulgaris of Bailu showed stronger drought tolerance than Aquilegia vulgaris of Huangfeng.