沈阳农业大学学报2012，Vol.43Issue(6)：754-758,5.
外源激素对杂草稻幼苗耐冷生理特性的影响
Effects of Exogenous Hormones on Chilling-resistance of Weedy Rice at Seedling Stage
摘要
Abstract
The effects of ABA and Fluridone on content of chlorophyll and carotenoids, thiobarbiturie acid reactive substances (TBARS), soluble sugar and proline in weedy rice with different chilling-resistance types at 5℃ were studied. The cold-tolerant WR03-45, cold-sensitive WR03-26 and cultivated rice Lijingxintuanheigu (CK) were examined and 5℃ low temperature condition in artificial climate chamber. The results showed that the TBARS content of weedy rice decreased and the soluble sugar and proline contents increased with applying ABA. However, there were no obvious changes in chlorophyll and carotenoids contents of weedy rice with applying ABA. The trends of those in applying Fluridone were negatively related with the change in applying ABA. This indicated that the chilling-resistance of weedy rice could be enhanced by applying ABA and restrained by applying Fluridone. There had different physiological effects of exogenous hormones on different chilling -resistance type weedy rice, showing that there were significant effects of exogenous hormones on WR03-26 which is cold-sensitive, while there were no significant effects of that on cold-tolerance WR03-45 and cultivated rice Lijingxintuanheigu.关键词
杂草稻/脱落酸/氟啶酮/幼苗期/耐冷/生理特性Key words
weedy rice/ ABA/ Fluridone/ seedling/ chilling-resistance/ physiological characteristics分类
农业科技引用本文复制引用
苗微,马殿荣,王国骄,赵明辉,唐亮,姜楠,丁国华,陈温福..外源激素对杂草稻幼苗耐冷生理特性的影响[J].沈阳农业大学学报,2012,43(6):754-758,5.基金项目
国家自然科学基金项目(31271687) （31271687）
辽宁省自然科学基金项目(20102192) （20102192）
现代农业产业技术体系建设专项资金项目(CARS-01-13) （CARS-01-13）
辽宁省教育厅重点实验室项目(LS2010143) （LS2010143）
