高温热害对水稻生长的影响及其应对措施

Effect of Heat Demage to Rice growth and Its Countermeasures

介绍了中国水稻(Oryza sativa L.)受高温热害的影响,对水稻受害的机理、高温热害指标及风险评估、高温预警监测等方面进行了综述。在大量研究的基础上提出从分子水平探明水稻受高温热害的根本机制,建立考虑品种、生育期、其他气象因素等的综合性高温热害指标,并提出选取合适播期、采用耐热品种、健全防范体系等观点。旨在为应对高温热害带来的危害及完善应对技术提供理论依据。

This paper introduces the influence of rice suffered from heat in our country, and reviews the injured mechanism,heat damage index and risk assessment, forewarning and monitoring. On the basis of extensive studies, this paper puts forward that ascertains the fundamental mechanism of rice injury from the high temperature at the molecular level, establishes an integrated heat injury index which considers the variety, growth stage and other meteorological factors, selects the appropriate sowing time, chooses the heat-resistant varieties and improves prevention system. All of these is aim at providing a solid foundation for coping with heat damage harm and improving the coping technology.