温敏不育系A3314在中国不同生态地点的育性表现

Variation of male fertility in regions on thermo -sensitive male-sterile line A3314 in wheat

利用作者参与发明的ZL00105488.0专利方法选育的小麦温度敏感不育系A3314在中国元谋、杨陵、石家庄、互助、依安、贵阳、武威7个不同纬度地点种植的自交结实率,结合各点光温条件的分析表明:A3314在黄淮冬麦区、云贵冬麦区、西北春麦区、东北春麦区各点,按当地小麦生产正季播种均表现稳定雄性不育;而在黄淮和云贵冬麦区春播(夏播)则自交结实,适宜条件下自交结实率可达60%以上。说明该温敏不育系的雄性育性受温度的制约,而与日长无明显相关。根据A3314的育性表现,推测它在中国大部分小麦产区均可安全用于杂交小麦制种。

The thermo-sensitive male-sterile wheat line A3314,which was bred by applying the technology of Chinese invention patent ZL00105488.0,were conducted through multi-locus,multi-locus sowing at different time.Analysis on the findings of these experiments shows that:the male fertility of A3314 will be stably male-sterile while sowing at the time suitable for wheat growing in Huang-Huai (the valleys of Huanghe river and Huaihe river) winter wheat production area,Yunnan-Guizhou winter wheat production area,Northwest spring wheat production area and Northeast spring wheat production area,and the secure sowing date to guarantee A3314 male-sterile is around 60 days during the local wheat sowing dates;on the other hand,the male fertility of A3314 will be male-fertile and the selfed seeds rates will be over 60% while sowing in spring or summer in Huang-Huai winter wheat production area and Yunnan-Guizhou winter wheat production area.Based on the analysis of the thermo-sensitive characters of A3314,A3314 will be securely applied in hybrid seed production in most wheat production areas of China.