| 聚乙二醇（PEG）浸种对茎瘤芥老化种子活力及其幼苗生长的影响 |
| |
| 引用本文： | 王慧超,赵昌琼,郑美娜,徐亚丽.聚乙二醇（PEG）浸种对茎瘤芥老化种子活力及其幼苗生长的影响[J].植物生理学通讯,2010(2):131-134. |
| |
| 作者姓名： | 王慧超 赵昌琼 郑美娜 徐亚丽 |
| |
| 作者单位： | 长江师范学院生命科学与技术学院; |
| |
| 基金项目： | 重庆市教委科学技术研究项目(KJ081308) |
| |
| 摘 要： | 茎瘤芥品种‘永安小叶’老化种子经聚乙二醇（PEG）浸种后,其种子活力和幼苗生长与PEG浓度有一定的相关性,不同浓度PEG浸种后的茎瘤芥种子膜透性均降低,种子发芽率、发芽势、发芽指数和活力指数增大,幼苗根干重、茎干重和根长也均增大,幼苗叶片中丙二醛（MDA）含量降低。幼苗生长与种子活力的变化趋势一致,PEG浓度小于30%时呈增大趋势,大于30%时呈减小趋势,但均大于不做PEG处理的;幼苗叶片中MDA含量与种子膜透性变化趋势一致,PEG浓度小于25%时,呈降低趋势,大于25%时则呈升高趋势,但这些指标均低于不做PEG处理的。
|
| 关 键 词： | 聚乙二醇 茎瘤芥 老化种子活力 幼苗生长 |
Effects of PEG-Soaking on Aged Seed Vigor and Seedling Growth of Tumorous Stem Mustard (Brassica juncea var.tumida Tsen et Lee 'Yonganxiaoye') |
| |
| WANG Hui-Chao,ZHAO Chang-Qiong,ZHENG Mei-Na,XU Ya-Li College of Life Science , Technology,Yangtze Normal University,Chongqing ,China.Effects of PEG-Soaking on Aged Seed Vigor and Seedling Growth of Tumorous Stem Mustard (Brassica juncea var.tumida Tsen et Lee 'Yonganxiaoye')[J].Plant Physiology Communications,2010(2):131-134. |
| |
| Authors: | WANG Hui-Chao ZHAO Chang-Qiong ZHENG Mei-Na XU Ya-Li College of Life Science Technology Yangtze Normal University Chongqing China |
| |
| Institution: | WANG Hui-Chao,ZHAO Chang-Qiong,ZHENG Mei-Na,XU Ya-Li College of Life Science , Technology,Yangtze Normal University,Chongqing 408100,China |
| |
| Abstract: | The relationships among seed vigor,seedling growth and polyethylene glycol (PEG) concentration were investigated after aged seeds of tumorous stem mustard (Brassica juncea var.tumida 'Yonganxiaoye') soaking with PEG.The results showed that permeability of seed membranes and malondialdehyde (MDA) content in seedling leaves were both decreased.Seed vigor parameters,such as germination percentages,germination trends,germination index and vigor index were elevated.Dry weight of roots and stems,as well as root l... |
| |
| Keywords: | polyethylene glycol （PEG） tumorous stem mustard （Brassica juncea var tumida ＇Yonganxiaoye＇） aged seed vigor seedling growth |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
