1.父、母本种子本身特性和催芽时的气温特点种子特性:父本种子与常规稻种子一样,内外颖闭合紧密,较之母本种子内外颖闭合不严、吸水(水进入颖壳内)难些;同时去其颖壳将其米粒同时入水、父本米粒吸水达到饱和度较母本米粒迟1小时左右(10～12℃的清水)。气候特点:父本催芽时,常是3月上、中旬,气温不稳而低,一般水 1. The characteristics of the parent and the mother of the seed itself and the temperature characteristics when germination Seed characteristics: the same as conventional rice seeds, the male and female Ying closed close, compared with the maternal seed inside and outside the Ying closed lax, water (water into the shell ) Is difficult; at the same time to its glumeus its rice at the same time into the water, water absorption of the male parent rice saturation than the mother of rice about 1 hour later (10 ~ 12 ℃ of water). Climate characteristics: When the male germination, often in March on the middle, the temperature is unstable and low, the general water