According to photosynthetic rate transpiration rate,transpiration efficiency and stomatic resistance of 8 clones of Populus tomentosa,the rought resistant is made clear.

 
  • 测定了8个毛白杨无性系净光合速率、蒸腾速率、蒸腾效率和气孔阻力等生理指标,反映出它们抗旱性上的差异。
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