LIN Ling,DUAN Er-long.Study on Reproductive Technique and Rooting Capability of Cutting Propagation of Picea likiangensis var.linzhiensis[J].Northern Horticulture,2014,38(19):61-65.
林芝云杉扦插繁殖技术与生根特性研究
- Title:
- Study on Reproductive Technique and Rooting Capability of Cutting Propagation of Picea likiangensis var.linzhiensis
- 文章编号:
- 1001-0009（2014）19-0061-05
- 分类号:
- S 791.18
- 文献标志码:
- A
- 摘要:
- 以林芝云杉为试材，研究了激素处理、浸泡时间、采穗母株年龄和枝条部位等因素对林芝云杉扦插繁殖的影响。结果表明：不同外源激素的种类、不同外源激素的浓度对林芝云杉扦插生根率的影响差异极显著。浸泡时间长短对扦插生根率的影响差异显著。所有处理中，以0.25 g/L ABT1#浸泡穗条基部4 h的处理对促进林芝云杉插条生根的效果最佳。林芝云杉采穗母株年龄对扦插生根率的影响差异极显著，与平均生根数、根系效果指数的差异显著。插穗生根随着采穗母株年龄增大，生根特性指标显著下降。采穗部位的不同对扦插生根率的影响差异显著。上部北向枝条插穗的生根率、每穗平均生根数以及根系效果指数都显著小于其它3个采集部位的值。
- Abstract:
- Taking Picea likiangensis var.linzhiensis as test material,effect of exogenous hormones,age of maternal plant and position on the maternal plant on the rooting process were studied.The results showed that the rooting ability of P.likiangensis var.linzhiensis was affected greatly by the types of the exogenous homornes and their concentrations,and thebest condition for rooting of this species was identified as 4 hour immersion in ABT1# with a concentration of 0.25 g/L.The age of maternal plants could affect the rooting ability of P.likiangensis var.linzhiensis,indicated by the mean root-number and the root effective index.Specifically,the rooting ability would decrease with the increasing age of maternal plant.The rooting ability of the P.likiangensis var.linzhiensis was also affected by the source position on the maternal plant,since the rooting rate,root number and the root effective index were the lowest in the cutting branches from the top and northern position of the maternal plant.The results would be of great help to the field collection and the cutting progagation of P.likiangensis var.linzhiensis.
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备注/Memo
第一作者简介：林玲（1973-），女，硕士，副教授，现主要从事林学和保护生物学的教学与科研工作。E-mail：xizyz@126.com.
基金项目：国家自然科学基金资助项目(31260049，30860026)；西藏自治区自然科学基金资助项目(2012-2013)；西藏自治区大学生创新计划资助项目(2013)。
收稿日期：2014-05-19