Under SEM there were no detectable differences in the granule morphology, but the average diameters and proportion (wt. %) of large and small starch grains indicated differences among varieties.

• 采用碱处理和差速沉淀法分离了籽粒胚乳大、小淀粉粒，扫描电镜观察发现品种间淀粉粒的形态无明显差别，但大、小淀粉粒的大小和含量在品种间存在很大差异。