Effect of Different Hormone Concentrations on Rooting of Acer mandshuricum Shoots under Certain Time
Using hormones NAA and IBA at the concentration of 0 mg/L,500 mg/L,1 000 mg/L,1 500 mg/L for 0,5,10 and 15 min,the cuttage technology of 2-year old Acer mandshuricum was studied,and the effects of hormones and concentration on the cuttage rooting of Acer mandshuricum were discussed.In the experiment,it was found that the number of rooting of No.9 treatment was the highest,and when the same concentration of IBA1 000 mg/L +NAA1 000 mg/L was dipped for 5min,the maximum number of rooting of Acer mandshuricum was 85(bars),which was higher than that of No.6 treatment at the same concentration of IBA500 mg/L.The minimum number of roots was 2452.5%larger than 3.33(bars),which was 232.9%larger than the average number of 14 treated trees 25.53(bars)after dipping with NAA500 mg/L for 5min.Treatment No.3 had the longest root length and was dipped in different concentrations of IBA500 mg/L+NAA 1 000 mg/L for 10min.The maximum root length of Acer mandshuricum was 11.03 cm,which was higher than that of treatment No.14 in different concentrations of IBA1 000 mg/L +NAA500 mg/L for 5 min,the minimum root length was 512.7%larger than 1.8 cm,which was 57.57%larger than the average length of 14 treated roots.The root diameter of the No.2 treatment was the largest,and the maximum root diameter of the Acer mandshuricum was 1.78 mm when different concentrations of IBA0 mg/L +NAA1 000 mg/L were dipped for 10 min,which was higher than that of the No.14 treatment at different concentrations of IBA 1 000 mg/L + NAA500 mg/L for 10min,the minimum root diameter of 0.49 mm was 263.3%larger than that of 0.67 mm,which was 165.7%larger than the average diameter of 14 treated roots.Therefore,under the same hormone concentration and the same time of treatment No.9,treatment No.3 and treatment No.2,treatment with different hormone concentration and different time,the root number and root length of cuttings of Acer mandshuricum were the largest(85 bars、11.03 cm、1.78 mm),and the growth performance was the best.
万方数据
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