While amylopectin content increasing rate and accumulating rate appeared on the 15-20th DAA and 20-25th DAA respectively.

• 籽粒中总淀粉、直链淀粉、支链淀粉积累量变化均呈“S”型曲线，直链淀粉积累速率在花后25-30天达到峰值，支链淀粉、总淀粉积累速率在花后20-25天达到峰值。