| 水分胁迫对红小豆和绿豆发芽的影响 |
| |
| 引用本文： | 刘世鹏,叶飞,曹娟云,陈宗礼.水分胁迫对红小豆和绿豆发芽的影响[J].北方园艺,2011(15):38-41. |
| |
| 作者姓名： | 刘世鹏 叶飞 曹娟云 陈宗礼 |
| |
| 作者单位： | 延安大学生命科学学院,陕西省区域生物资源保育与和用工程技术研究中心,陕西延安716000 |
| |
| 基金项目： | 陕西省自然科学基金资助项目(S2009JC970); 延安市自然科学基础研究资助项目(2008KN-01) |
| |
| 摘 要： | 采用配置不同浓度的聚乙二醇(PEG--6000)溶液来模拟土壤自然水势,对红小豆和绿豆种子萌发进行人工水分胁迫处理.结果表明:随着胁迫程度的加剧,红小豆和绿豆的发芽率、发芽势、发芽指数、活力指数均呈下降趋势；胁迫浓度达20％时红小豆种子不能萌发,表明红小豆种子的萌发的临界水分胁迫值小于20％,而绿豆种子在25％的胁迫溶液中没有发芽,表明绿豆种子萌发的临界水分胁迫值小于25％；发芽后胚轴和胚根的生长亦受到水分胁迫的影响,胚轴/胚根的比值随水分胁迫强度的加强而减小,表明红小豆和绿豆种子萌发后对水分胁迫具有较强的适应性.
|
| 关 键 词： | 水分胁迫 发芽率 发芽势 发芽指数 活力指数 |
Effect of Water Stress on Germination of Adzuki Bean and Mung Bean |
| |
| LIU Shi-peng
,
YE Fei
,
CAO Juan-yun
,
CHEN Zong-li.Effect of Water Stress on Germination of Adzuki Bean and Mung Bean[J].Northern Horticulture,2011(15):38-41. |
| |
| Authors: | LIU Shi-peng YE Fei CAO Juan-yun CHEN Zong-li |
| |
| Institution: | LIU Shi-peng,YE Fei,CAO Juan-yun,CHEN Zong-li(College of Life Sciences,Yan'an University,Shaanxi Engineering and Technological Research Center of Conversation and Utilization of Biological Resources,Yan'an,Shaanxi 716000) |
| |
| Abstract: | The treatment of water stress to adzuki bean and mung bean on seeds was made by the different concentrations of polyethylene glycol(PEG-6000).The results showed that with the increasing of PEG concentrations,the germination rate,germination percentage,germination index and seed vigor index were all decreased gradually.The adzuki bean seeds treated with 20% PEG could not germinate at all throughout the experiment period,suggesting that 20% PEG was the threshold for the germination of adzuki bean seeds.The mu... |
| |
| Keywords: | water stress germination rate germination percentage germination index vigor index |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
