Studies on the Formation and Accumulation of Amylose Content in Rice

The formation and accumulation of rice amylose content were studied. The results showed that the accumulation of amylose content was a slowlyincreasing dynamic process and its speed was slower than amylopection and total starch. The fast growing period of amylose, amylopection and total starch was the flowering 3-12 days. Amylopection was the first to reach the max content, then total content, amylose content was the last. During earlier period of milking, the accumulation rate of high amylose content species was higher than that of low amylose content species. The formation and accumulation of amylose content, amylopection content and total content were effected by season.