The Effect of Rooting Powder of Different Concentrations on the Cutting Seedling Growth of Calligonum ebinuricum
The 1-2 years old branches of Calligonum ebinuricum were used as materials,and the cuttings were treated with rooting powder of different concentrations(50,100,150,250 mg·L-1)and water(control).The effects of rooting powder solution of different concentrations on the survival rate,plant height,crown width,diame-ter,root length,and number of fibrous roots of cuttings were explored.The results showed as the following two as-pects.(1)Treatments with rooting powder of different concentrations all increased the survival rate,plant height,crown width,ground diameter,root length,and number of fibrous roots of cuttings.(2)The survival rate,average plant height,ground diameter,root length and the number of fibrous roots of the branches treated with 50 mg·L-1 rooting powder solution were the highest,which were 2.29 times,2.66 times,1.92 times,1.98 times and 3.34 times that of the control group,respectively.The average crown width of branches treated with 50 mg·L-1 rooting powder solution is the highest,which is 3.64 times that of the control group in the east and 3.18 times that of the control group in the south and north.Comprehensive analysis shows that the rooting powder solution can effectively improve the survival rate and various growth indexes of Calligonumebinuricum for 8 h.