Abstract: To analysis the different phenotypes of hulless barley and barley under NaCl stress,and also to mine the genetic resources of these two traditional cereal crops with strong resisitance to abiotic-stresses,the relative growth rate of seedings,roots and leaves,as well as some key physiological figures closely related to salt stress responses were examined in hulless barley and barley,which were planted under different treating periods of 1.0% or 0.5% NaCl.The result indicated that,the germination rate of hulless barley seeds is significantly higher than that of barley under the same stress condition triggered by NaCl.As well as the relative growth rates of roots and leaves of hulless barley seedings are higher than those of barley.Subsequence data analysis of physiological phenotypes revealed that the content of MDA in leaves is significant lower in hulless barley,while the content of free proline,soluble saccharides and the SOD activity in leaves are significantly higher in hulless barley under the same stress condition.As a conclusion,we believe that the hulless barley harbors a better intracellular resistance to NaCl-stress than barley.

Key words: Barley, Hulless barley, Rate of germination inhibition, Relative growth rate

CLC Number: 

• S512.01