There were all restorers in the first, second, fourth, fifth and sixth groups, therefore, there was a plenty of genetic diversity in restorers of Dian type 1.

• 第1，2，4，5，6等5个类群的材料全部为恢复系，说明在滇型杂交粳稻的恢复系中具有丰富的遗传多样性。