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《Journal of Anhui Agricultural Sciences》 2010-05
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Seed Germination Characteristics of Fraxinus velutina Torr in Treatments with Salt Extract of Saline Soil

LIU Ping(Department of Environment and Urban,Binzhou College,Binzhou,Shandong 256603)  
[Objective]The aim was to provided the theoretical basis for studying salt resistance of Fraxinus velutina Torr.[Method] The seeds of F.velutina were treated by NaCl and NMS with different concn.(0(CK),2.9,5.8,11.7,17.6,23.4,35.1 g/L),and the seed germination and seedling growth situations of F.velutina in different treatments were compared.[Result]With the increase of salt concn,the seed germination rate of showed decreasing trend as a whole.The germination energy and germination index of F.velutina seeds in NMS solution were significantly higher than those of F.velutina seeds in treatment with the same concn of NaCl.The seedlings of F.velutina in salt solution of 11.7 g/L NaCl and 17.6 g/L NMS only had root growth,and those in 23.4 and 35.1 g/L salt solution had no growth phenomena.After rehydration treatment,the germination recovery percentage of F.velutina seeds that were treated by salt in the range of critical concn reached over 90%.[Conclusion] Salt stress had obvious inhibition on seed germination and seedling growth of F.velutina.
【Fund】: 滨州学院科学基金资助项目(BZXYL200412)
【CateGory Index】: S792.41
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