摘要
利用福建省67个国家气象观测站1971-2020年气象资料以及地理信息资料、两系杂交稻制种基地调查资料,构建了两系杂交稻制种育性转换敏感期气候风险模型与风险等级指标、扬花授粉期天气综合危害指数模型与等级指标两个安全期气候区划指标,选择不育系育性转换起点温度23℃开展研究,基于两系杂交稻制种气候适宜性分区等级标准,采用多层复合方法,开展基于GIS的福建省两系杂交稻制种安全高产精细气候适宜性区划。结果表明:育性敏感期安排在7月上旬-下旬、7月中旬-8月上旬,扬花授粉期安排在8月上旬-中旬,适宜区分布在福建北部、西南部等县市海拔300m以下的区域,次适宜区分布在福建北部、西南部等县市海拔300-500m的区域;育性敏感期安排在7月下旬-8月中旬、8月上旬-下旬,扬花授粉期8月下旬-9月上旬,适宜区分布在福建北部、西南部等县市海拔400m以下的区域,次适宜区分布在福建北部、西南部等县市海拔400-500m的区域;育性敏感期安排在7月上旬-8月下旬,扬花授粉期安排在8月上旬-9月上旬,低适宜区分布在海拔500-1000m的区域,不适宜区分布在海拔1000m以上区域。
The meteorological data of 67 national meteorological observation stations in Fujian Province from 1971 to 2020,geographic information data and investigation data of two-line hybrid rice seed production base were used.The climate risk model and grade index in the sensitive period of fertility conversion,and the weather comprehensive hazard index model and grade index in the flowering and pollination period were constructed.The starting temperature index of fertility transformation of sterile line as 23℃was selected for research.Based on the climate suitability grade standard of two-line hybrid rice seed production,the multi-layer composite method was used to carry out the climate suitability refined zoning of two-line hybrid rice seed production for the safety and high yield in Fujian Province based on GIS.The results show that critical temperature index of fertility transformation of two-line sterile line was 23℃,the fertility transformation were arranged from early July to late July,and from mid-July to early August,the flowering pollination period was arranged in early August and mid-August,the most suitable zone and suitable zone were distributed in northern Fujian,southwestern Fujian below altitude of 300m,the less suitable zone was distributed in northern Fujian,southwestern Fujian at the altitude of 300 to 500m.Fertility transformation was arranged from late July to mid-August,early August to late August,flowering pollination period was arranged in late August and early September,the most suitable zone and suitable zone were distributed in northern Fujian,southwestern Fujian below altitude of 400m,less suitable zone was distributed in northern Fujian,southwestern Fujian at the altitude of 400 to 500m.The low suitable zone was distributed at the altitude of 500 to 1000m.The unsuitable zone was distributed above altitude of 1000m.
作者
苏荣瑞
林瑞坤
孙朝锋
陈家金
吴志源
杨凯
SU Rong-rui;LIN Rui-kun;SUN Chao-feng;CHEN Jia-jin;WU Zhi-yuan;YANG Kai(Fuzhou Agriculture Meteorological Trial Station,Fuzhou 350014,China;Technology Innovation Center of Intelligent Meteorology in Fuzhou,Fuzhou 350014;Fujian Meteorological Service Center,Fuzhou 350001;Rice Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350018;Fujian Institute of Meteorological Science,Fuzhou 350001)
出处
《中国农业气象》
CSCD
2024年第1期45-57,共13页
Chinese Journal of Agrometeorology
基金
福建省科技计划项目(2021J01460)
福建省气象局开放式基金项目(2020K03)。
关键词
两系杂交稻
制种
安全高产
气候适宜性
区划
Two-line hybrid rice
Seed production
Safety and high yield
Climate suitability
Zoning
