The amylase, amylopectin and total starch accumulation rates of all treatments had a change with mono-peak curve, and reached the maximum on the 28th day after anthesis.

• 各处理直链淀粉、支链淀粉、总淀粉积累速率均呈单峰曲线变化，其峰值出现在子粒开始灌浆后第28天前后。