The protein contentwas higher in PH82-2-2 from first to last and that of PH97-4 was the lowest. The protein accumulation of PH97-5 speed up after 21 DAA, then went to ahigh level.

• 不同品种的胚乳结构有差异,PH82-2-2 和 PH97-5 的糊粉层在部分区域有两层细胞,而济南 17 和 PH97-4 的糊粉层细胞为一层。