【摘要】 通过比较培矮 64S、13 5 6S、博A、安农S— 1、明恢 63和G67的开花习性 ,发现培矮 64S具有柱头受粉面积小 ,颖花开闭时间较短 ,柱头生命力下降快 ,柱头外露率较高 ,花期和花时集中 ,与父本同步开花比率较高等特点。并就提高培矮 64S的制种产量进行了讨论更多还原

【Abstract】 Pei’ai 64S had smaller stigma dimensions for receiving pollens, shorter glume opening period, lower stigma vitality and higher stigma exsertion percentage, compared with 1356S, Bo A, Annong S-1, Minghui 63 and G67. Its flowering period and hour were found more concentrated and synchronous with male parents. It was also discussed about how to increase the yield in the F 1 seed production of Pei’ai 64S.更多还原