两系杂交稻制种生产的气候生态诊断技术

两系杂交稻制种生产对气候生态条件有严格要求,确定制种生产基地时应当先对当地的气候生态适宜性进行科学地诊断与评估。该文系统地分析了气候生态条件对两系杂交稻制种生产的特定影响,提出了制种生产上应注重的两段气候生态安全期概念,研究了两段安全期的诊断评估方法,研制出了两系杂交稻种子生产时空择优气候服务系统,并据此确定了湖南全省两系杂交稻种子生产的适宜区域与时段。2000年初,湖南省有关部门采纳了此项建议,进一步规范了全省的两系制种生产管理。

Climatic-ecological Diagnoses on Seed Production of Two-line Hybrid Rice

Strict requirements for climatic ecological conditions are needed for the two line hybrid rice cultivation. While the seed production bases are concerning, full diagnosis and scientific assessment should be conducted on the local climatic ecological adaptability. The special influences of climatic ecological conditions on two line hybrid rice are analyzed. It is pointed out that the two safety periods should be considered in seed production. A diagnosis method for analyzing the periods is given. The "Hunan Provincial Expert Service System for Climate Diagnose and Policy making on Seed Production of Two line Hybrid Rice" is developed and the system can be used to define the available zones and time sections in Hunan for seed production. In the beginning of 2000, this proposal used by the system was adopted in Hunan Province and the management of the seed production is further promoted.