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| 高温对水稻抽穗扬花期生理特性的影响 | |
| 引用本文： | 李萍萍,程高峰,张佳华,李秉柏,谢晓金,杨沈斌. 高温对水稻抽穗扬花期生理特性的影响[J]. 江苏大学学报(自然科学版), 2010, 31(2). DOI: 10.3969/j.issn.1671-7775.2010.02.001 |
| 作者姓名： | 李萍萍 程高峰 张佳华 李秉柏 谢晓金 杨沈斌 |
| 作者单位： | 1. 江苏大学,现代农业装备与技术省部共建教育部重点实验室/江苏省重点实验室,江苏,镇江,212013 2. 中国气象科学研究院,北京,100081 3. 江苏省农业科学院,农业资源与环境研究所,江苏,南京,210014 4. 南京信息工程大学,应用气象学院,江苏,南京,210044 |
| 基金项目： | 国家“十一五”科技支撑计划项目(2006BAD04B04) |
| 摘 要： | 以扬稻6号(中熟中籼)和南粳43(中熟晚粳)为材料,探讨了抽穗扬花期高温胁迫对水稻花粉活力、花粉萌发率以及剑叶有关理化特性的影响.结果表明:高温胁迫使两个品种水稻花粉萌发率和花粉活力显著下降,细胞内渗透调节物质脯氨酸(Pro)、可溶性糖、可溶性蛋白质含量以及剑叶叶绿素含量、超氧化物歧化酶(SOD)活性均明显降低,丙二醛(MDA)含量和质膜透性明显增加,抗坏血酸(AsA)、还原型谷胱甘肽(GSH)含量在胁迫初期略微增加,尔后迅速下降.在相同条件下,抽穗扬花期南粳43受高温的伤害始终小于扬稻6号.高温胁迫下水稻剑叶保持较高水平的MDA含量和质膜透性以及较低水平的Pro、可溶性糖、可溶性蛋白质、AsA,GSH和SOD的含量是水稻抗逆的生理基础. |
| 关 键 词： | 水稻 高温胁迫 生理特性 抽穗扬花期 |
Effects of high temperature stress on physiological characteristics of rice during heading and flowering period |
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| Li Pingping,Cheng Gaofeng,Zhang Jiahua,Li Bingbai,Xie Xiaojin,Yang Shenbin. Effects of high temperature stress on physiological characteristics of rice during heading and flowering period[J]. Journal of Jiangsu University:Natural Science Edition, 2010, 31(2). DOI: 10.3969/j.issn.1671-7775.2010.02.001 | |
| Authors: | Li Pingping Cheng Gaofeng Zhang Jiahua Li Bingbai Xie Xiaojin Yang Shenbin |
| Abstract: | The effects of high temperature stress on the physiological and biochemical characteristics of pollen and flag leaves of rice during heading and flowering period in Yangdao 6 and Nanjing 43 were studied.The results show that under high temperature stress,pollen germination rate and pollen vitality decreased significantly,the contents of osmotic adjustable organic substances(proline,soluble sugar and soluble protein),chlorophyll and the activity of superoxide dismutase(SOD) decreased obviously,whereas malond... |
| Keywords: | rice high temperature stress physiological characteristic heading and flowering period |
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