| 不同处理对桔梗种子萌发特性的影响 |
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| 引用本文： | 于营,朴向民,张维友,王英平,邢丽伟,郭靖.不同处理对桔梗种子萌发特性的影响[J].种子,2017(11):34-37. |
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| 作者姓名： | 于营 朴向民 张维友 王英平 邢丽伟 郭靖 |
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| 作者单位： | 1. 中国农业科学院特产研究所,吉林长春,130112;2. 吉林省农业广播电视学校双阳分校,吉林长春,130600 |
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| 基金项目： | 吉林省科技发展计划项目(20150204050 YY) |
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| 摘 要： | 目的]采用不同化学试剂对桔梗种子萌发特性进行研究,为桔梗种子的人工栽培、种苗培育提供科学依据.方法]选用6种常用种子处理试剂即0.1％ HgCl2、10％ H2O2、0.5％KMnO4、75％ C2H5OH、2.0％NaClO和0.16％HCHO分别浸种5,10,20 min处理,对桔梗种子萌发及幼苗生长进行测定.结果]用0.1％HgCl2处理5 min效果较好;用10％ H2O2浸种10 min效果较好;用0.5％ KMnO4浸种10 min效果较好;用75％C2 H5 OH浸种5 min效果较好;桔梗种子采用2.0％ NaClO处理20 min效果较好;用0.16％ HCHO处理10 min效果较好.综合分析表明,用2.0％NaClO浸种20 min后,桔梗种子的发芽率、发芽势、发芽指数和根长均达到所有处理中的最大值,因此,2.0％ NaClO浸种20 min为桔梗的最佳处理方法.结论]筛选出桔梗种子萌发的适宜浸种试剂和浸种时间,对桔梗种子育苗具有重要指导意义.
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| 关 键 词： | 桔梗种子 浸种处理 化学试剂 种子萌发 |
Study on Germination Characteristics of Platycodon grandiflorum by Soaking Their Dormant Seeds. |
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| YU Ying,PIAO Xiangmin,ZHANG Weiyou,WANG Yingping,XING Liwei,GUO Jing.Study on Germination Characteristics of Platycodon grandiflorum by Soaking Their Dormant Seeds.[J].Seed,2017(11):34-37. |
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| Authors: | YU Ying PIAO Xiangmin ZHANG Weiyou WANG Yingping XING Liwei GUO Jing |
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| Abstract: | Objective] Study on germination characteristics of Platycodon grandiflorum by soaking their dormant seeds in different chemical reagent,to provide the scientific theoretical basis for artificial cultivation and seed cultivation of P.grandiflorum.Methods]To choose 6 kinds of commonly used seed treatment reagent (0.1％ HgCl2,10％H2O2,0.5％ KMnO4,75％ C2H5OH,2.0％ NaClO and 0.16％ HCHO) soaking respectively P.grandiflorum seed 5 min,10 min,20 min,to measure the P.grandiflorum seed germination and seedling growth.Results] Each chemical reagent seed soaking experiments show that it is better to use 0.1％ HgCl2 soaking seeds 5 min,10 ％ H2 O2 soaking seeds 10 min,0.5 ％ KMnO4 soaking seeds 10 min,75 ％ C2H5OH soaking seeds 5 min,0.16％ HCHO soaking seeds 10 min,2.0％ NaClO soaking seeds 20 min.Comprehensive analysis showed that the 2.0％ NaClO soaking seeds 20 min,after processing of P.grandiflo rum seeds germination rate,germination potential,germination index and the P.grandiflorum root length all reach to the maximum,therefore,the best way of seed soaking treatment is 2.0％ NaClO soaking seeds 20 min.Conclusion]Selecting suitable for seed soaking agent and seed soaking time that can conducive to the growth of P.grandiflorum seed,to P.grandiflorum seed grow seedlings and artificial cultivation has important directive significance. |
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| Keywords: | P grandiflorum seed seed soaking chemistry reagent seed germination |
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