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

SONG Xi-yue,HE Bei-ru,MA Ling-jian,HU Yin-gang,YU Ling (College of Agronomy,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China)  
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.
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