首页 | 本学科首页   官方微博 | 高级检索  
     检索      

用秋水仙素处理不同家系白桦种子诱导四倍体的研究
引用本文:刘福妹,穆怀志,刘子嘉,李志新,姜静,刘桂丰.用秋水仙素处理不同家系白桦种子诱导四倍体的研究[J].北京林业大学学报,2013,35(3):84-89.
作者姓名:刘福妹  穆怀志  刘子嘉  李志新  姜静  刘桂丰
作者单位:1 东北林业大学林木遗传育种国家重点实验室2 中国林业科学研究院热带林业实验中心
基金项目:"十二五"国家科技支撑计划课题
摘    要:采用0.1%和0.2%秋水仙素分别处理4 个家系白桦种子1、2、3 和4 d,调查其对白桦种子相对发芽率、相对 发芽势的影响和四倍体诱导率,在此基础上研究了2 种桦树共7 个家系在0.2%秋水仙素处理3 d 的条件下四倍体 的发生率。结果表明:1)秋水仙素对种子发芽率、发芽势有显著影响,随着浓度的增加发芽率和发芽势降低;同一 浓度下随着诱导时间的增加种子发芽率和发芽势呈现先降低后增加的变化趋势,在诱导3 d 时为最低。2)用 0.2%的秋水仙素处理种子3 d,发现白桦种间和家系间的四倍体诱导率明显不同,欧洲白桦4 个家系的平均诱导率 为3.76%,而3 个白桦杂种家系的平均诱导率仅为0.09%,7 个家系中YB3 的诱导率高达8.86%。 

关 键 词:白桦    秋水仙素    多倍体    四倍体
收稿时间:1900-01-01

Inducing tetraploid of Betula platyphylla with different generations of seeds by colchicine
LIU Fu-mei,; MU Huai-zhi,; LIU Zi-jia,; LI Zhi-xin,; JIANG Jing,; LIU Gui-feng.Inducing tetraploid of Betula platyphylla with different generations of seeds by colchicine[J].Journal of Beijing Forestry University,2013,35(3):84-89.
Authors:LIU Fu-mei  ; MU Huai-zhi  ; LIU Zi-jia  ; LI Zhi-xin  ; JIANG Jing  ; LIU Gui-feng
Institution:1 State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, 150040, P. R. China; 2 The Experiment Centre of Tropical Forestry, Chinese Academy of Forestry Official, Pingxiang, Guangxi, 523600, P. R. China
Abstract:The effects of colchicine treatments on relative-germination rate and potential of seeds for four Betula platyphylla families were studied. The treatment combinations included the colchicine concentration of 0.1% and 0.2% and the treatment time of 1 day, 2, 3 and 4 days. Based on the results of first experiment, the second one was further to investigate the inducing rate of tetraploid after applying the treatment combination of 0.2% and 3 days on 7 families of two species, B. platyphylla×B. pendula and B. pendula. Results of the first experiment showed that the colchicine concentration had a significant influence on seed relative-germination rate and potential; the germinate rate was lower and potential was weaker at the concentration of 0.2% than at 0.1%. Under the same concentration, the relative-germination rate and potential reduced first then enhanced along with the increase of treating time. The treating time of 3 days had the lowest germinate rate and potential. Results of the second experiment showed that the tetraploid inducing rate was significantly different between the species and among the families within species. The average inducing rate was 3.76% for the four B. pendula families but was only 0.09% for the three hybrid families. The highest rate was 8.86% for YB3.
Keywords:Betula platyphylla  colchicine  polyploid  tetraploid
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《北京林业大学学报》浏览原始摘要信息
点击此处可从《北京林业大学学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号