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光温敏核不育系 1 1 0 3S在泸州自然光温条件下春繁旱育秧处理比温室两段秧处理增产 38.1 % ,达极显著水平。增产的主要原因是能提早 1 1 0 3S的生育进程 ,使多数穗子的育性敏感期处于 5月中下旬的较低温度下 ,从而提高了群体的平均结实率
Photo-thermo-sensitive genic male sterile line 1103S increased the yield by 38.1% in spring and drought nursery seedlings under Luzhou natural light and temperature conditions, reaching a significant level. The main reason for the increase was that it could promote the fertility progress of 1103S earlier and make the fertility sensitive period of most of the earlings at a lower temperature in the middle and late May, thus increasing the average seed set rate of the population