两系杂交稻制种基地气候风险评估的研究
STUDY ON ASSESSMENT OF CLIMATE RISK FOR SEED-BREEDING BASE AREA OF BILINEAR HYBRID RICE
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摘要: 通过对两系杂交稻制种气候风险的数学定义, 根据江西省1:25万地形数据和84个气象台站40年气候资料, 在分析气候要素与海拔高度关系的基础上, 运用地理信息系统的空间分析方法, 对两系杂交稻制种气候风险进行评估, 找出了最佳制种地理区域和季节。对农业生产具有重要的意义, 分析结果在生产实际中得到证实。Abstract: The climate risk for seed-breeding of bilinear hybrid rice is defined on the basis of Jiangxi geographical data on the scale of 1:250000, climate data in 40 years of 84 observatory stations and analysis of the relationship between climate factors and height above sea level, using spatial analyzing method of GIS. The climate risk for seed breeding of bilinear hybrid rice is assessed and the best region and season for seed-breeding is sought. It is important to agricultural production. Analyzing results were proved by the production practice.
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Key words:
- Bilinear hybrid rice;
- Seed-breeding base area;
- Risk assessment;
- GIS
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表 1 历年符合育性转换期适宜气象条件的天数
表 2 江西省各地形区各月温度递减率
表 3 历年符合抽穗扬花期适宜气象条件的天数
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