【摘 要】
：
Chlorophytum leaves were treated with three kinds of chemical mutagen, EMS, DES and NaN3 with different concentration to obtain the variation materials with exc
【机 构】
：
College of Horticulture
【基金项目】
：
Supported by Heilongjiang Provincial Youth Science and Technology Fund;Innovation Project of Northeast Agricultural University
论文部分内容阅读
Chlorophytum leaves were treated with three kinds of chemical mutagen, EMS, DES and NaN3 with different concentration to obtain the variation materials with excellent properties. The results showed that the genetic similarity coefficient of variation plants with EMS treatment was between 0.648 and 0.868, with NaN3 treatment was between 0.598 and 0.859, and with DES treatment was between 0.668 and 0.904, of which the mutagenic effects with 0.8% EMS, 250 mg. L-1 NaN3 and 0.3% DES on chloro- phytum were the best. ISSR molecular marker technique was used to analyze their genetic diversities. Total 392 polymorphic bands were obtained through 18 ISSR primers. Polymorphic ratio was 72.4%, which showed that DNA mutation took place in various degrees
其他文献
该文针对中国县级土地利用变更调查工作的实际情况,分别以山西省昔阳县和太原市尖草坪区为研究区,探讨了基于正射影像和GIS技术的土地利用变更调查方法.该方法的主要特点是发
Nowadays, with the progress of science and technology, the distance between countries seems to be shortened in our eyes. People have more and more chance to com
加强APEC海洋经济技术领域的合作是加强海陆统筹、发展蓝色经济、加快海陆经济集成创新的重要途径，尤其应当在政策层面、战略层面、政治层面上予以高度重视，积极参与到海洋管理
Tilt and strain meters of the deformation-observation network in Hubei Province all responded to the Mw9.0 Japan earthquake on March 11,2011.By analyzing the co
Firefly仪器是一款新型的无线地震数据采集系统，它能够适应各种复杂的勘探环境和地质条件，具有很高的施工效率和较低的HSE风险。本文在深入研究以太网及其通信协议的基础上，从组
本文以江苏纺织业为例,利用2000-2008年的时间序列数据实证分析对外开放与产业集聚之间的关系,结果发现对外开放有利于产业的集聚,反过来产业集聚程度越高,溢出效应就越大,从
大庆,素有百湖之城的称谓。其广袤的草原上星罗棋布般镶嵌着湖泊、泡沼和湿地,其间河溪纵横交错。河湖鱼虾戏水、百鸟飞鸣、牛羊成群为美丽的石油城增添了无限生机。初夏,笔
辽宁省凌海市育新水稻全程机械化种植合作社成立于2009年，牵头人是凌海市闰家镇农民杨伟明、杨伟峰兄弟及其父亲。除了种水稻、帮人机械作业，杨家父子三人还开了家农资超市，日子
建立农村土地调查数据库,真实准确地掌握土地利用现状,从而为国土资源管理工作提供重要依据。本文简要地从内业数据采集、数据整理入库等方面介绍彭阳县农村土地调查数据库建设的具体方法。
人们瞥见这个标题,也许会感到奇怪：地图集,大西洋和阿特拉斯山三者,从名称上看,彼此并不沾边,怎么能扯到一块去？