母本秧龄和穴插谷粒数对苗穗结构、穗部性状及制种产量均有不同程度的影响。母本秧龄对基本苗和上林穗有显著的影响,对穗平着粒数、实粒数有显著影响;穴插谷粒数对基本苗、上林穗和穗着粒数影响很大,对最高苗也有显著影响。汕优63制种母本穴插3粒谷,插25d左右的秧龄,具有较合理的群体结构和穗粒结构,制种易获得较高产量。 Seedling age and number of inserted grains of female parent had different effects on ear structure, ear traits and seed yield. The seedling age of the female parent had significant effects on the basic seedlings and the upper spikelet and had a significant effect on the spike grain number and the real grain number. The number of inserted grain grains had a great influence on the basic seedlings, The highest seedlings also have a significant impact. Shanyou 63 system seed mother inserted three grain valleys, insert about 25 days of seedling age, with a more reasonable population structure and grain structure, seed production easy access to higher yields.