无叶假木贼种子萌发期对旱盐环境的适应研究OA

Using PEG-6000 and NaCl to simulate drought stress,salt stress and drought-salt combined stress,the germination rate,mean ger-mination time and bud fresh/dry ratio were analyzed,and the adaptability of Anabasis aphylla L.seed germination stage to drought and salt en-vironment was discussed.The results showed that the seeds of A.aphylla L.could withstand drought stress,salt stress and combined drought and salt stress to a certain extent.With the increase of stress,the germination of A.aphylla L.would be delayed or not.The low salt environ-ment(200 mmol/L NaCl)can promote the water absorption of A.aphylla L.from the environment to maintain the turgor pressure of the buds,so as to ensure the smooth settlement of A.aphylla L.in the arid saline environment.