[Objective] This study aimed to investigate the effects of different exoge- nous hormones on the rooting of Syringa microphylla cuttings and the change in related enzymes activity during the rooting process. [Method] ...[Objective] This study aimed to investigate the effects of different exoge- nous hormones on the rooting of Syringa microphylla cuttings and the change in related enzymes activity during the rooting process. [Method] Three different exoge- nous hormones IBA, NAA and ABT, each with concentrations of 500, 1 000, 1 500 and 2 000 mg/L were used to treat S. microphylla cuttings, and changes in the ac- tivities of peroxidase （POD）, poiyphenol oxidase （PPO） and indoleacetic acid oxidase （IAAO） during the rooting process were also investigated. [Result] The most appro- priate concentrations of IBA, ABT and NAA were 1 500, 1 000 and 1 000 mg/L, respectively, and the 1 500 mg/L IBA treatment exhibited the best effect on rooting. Throughout the rooting process, POD and PPO activities showed the same trends in the treatment groups as those in the control group, but the POD and PPO activi- ties in the treatment groups were increased significantly, with greater amplitude of variation; at the early stage, IAAO activity exhibited an opposite trend between the control group and the treatment groups, which increased slowly in the former, but decreased rapidly in the latter, and it was significantly lower in the treatment groups compared to the control; additionally, higher POD and IAAO activities were con- ducive to the induction of adventitious roots, and lower POD and IAAO activities fa- vored their formation and elongation. [Conclusion] This study has preliminarily clari- fied the rooting mechanism of S. microphylla cuttings.展开更多
[Objective] The study was carried out in order to find out the best method of rapid cutting rooting of Syriga microphylla with tender branches.[Method] Effect of rooting reagent with different concentrations on the ra...[Objective] The study was carried out in order to find out the best method of rapid cutting rooting of Syriga microphylla with tender branches.[Method] Effect of rooting reagent with different concentrations on the rapid cutting rooting of Syriga microphylla with tender branches was studied in our paper.[Result] There was great difference between cuttings with auxin and without auxin.[Conclusion] Tender branches treated by 90 mg/L indole butyric acid（IBA）had the best cutting rooting.展开更多
[Objective] The effects of different matrix formulations and NAA concentra-tions on the growth of roots and survival rate of rosemary cuttings were investigat-ed. [Method] The randomized block design was adopted. Ther...[Objective] The effects of different matrix formulations and NAA concentra-tions on the growth of roots and survival rate of rosemary cuttings were investigat-ed. [Method] The randomized block design was adopted. There were 9 formulations of matrix and 4 concentrations of NAA in the test. The survey and determination data was analyzed by Excel. [Result] For rosemary cuttings, the roots of Treatment 7 （turfy soil∶perlite=3∶2） had the best growth with the highest survival rate of nearly 100%. The roots of rosemary cuttings had the best growth for 150 mg/L of NAA with the highest survival rate of 88.9%. [Conclusion] For rosemary cuttings, the op-timal matrix formulation was turfy soil∶perlite=3∶2, and the optimal NAA concentration was 150 mg/L.展开更多
文摘[Objective] This study aimed to investigate the effects of different exoge- nous hormones on the rooting of Syringa microphylla cuttings and the change in related enzymes activity during the rooting process. [Method] Three different exoge- nous hormones IBA, NAA and ABT, each with concentrations of 500, 1 000, 1 500 and 2 000 mg/L were used to treat S. microphylla cuttings, and changes in the ac- tivities of peroxidase （POD）, poiyphenol oxidase （PPO） and indoleacetic acid oxidase （IAAO） during the rooting process were also investigated. [Result] The most appro- priate concentrations of IBA, ABT and NAA were 1 500, 1 000 and 1 000 mg/L, respectively, and the 1 500 mg/L IBA treatment exhibited the best effect on rooting. Throughout the rooting process, POD and PPO activities showed the same trends in the treatment groups as those in the control group, but the POD and PPO activi- ties in the treatment groups were increased significantly, with greater amplitude of variation; at the early stage, IAAO activity exhibited an opposite trend between the control group and the treatment groups, which increased slowly in the former, but decreased rapidly in the latter, and it was significantly lower in the treatment groups compared to the control; additionally, higher POD and IAAO activities were con- ducive to the induction of adventitious roots, and lower POD and IAAO activities fa- vored their formation and elongation. [Conclusion] This study has preliminarily clari- fied the rooting mechanism of S. microphylla cuttings.
基金Supported by Scientific Research Project of Jilin Education Department([2010]number450)~~
文摘[Objective] The study was carried out in order to find out the best method of rapid cutting rooting of Syriga microphylla with tender branches.[Method] Effect of rooting reagent with different concentrations on the rapid cutting rooting of Syriga microphylla with tender branches was studied in our paper.[Result] There was great difference between cuttings with auxin and without auxin.[Conclusion] Tender branches treated by 90 mg/L indole butyric acid（IBA）had the best cutting rooting.
基金Supported by China Agricultural University (Yantai) Scientific Research Start-up Fund(YT201207)~~
文摘[Objective] The effects of different matrix formulations and NAA concentra-tions on the growth of roots and survival rate of rosemary cuttings were investigat-ed. [Method] The randomized block design was adopted. There were 9 formulations of matrix and 4 concentrations of NAA in the test. The survey and determination data was analyzed by Excel. [Result] For rosemary cuttings, the roots of Treatment 7 （turfy soil∶perlite=3∶2） had the best growth with the highest survival rate of nearly 100%. The roots of rosemary cuttings had the best growth for 150 mg/L of NAA with the highest survival rate of 88.9%. [Conclusion] For rosemary cuttings, the op-timal matrix formulation was turfy soil∶perlite=3∶2, and the optimal NAA concentration was 150 mg/L.
