C2.C3 had rich geneticvariation by selection. The ASI was 4.3 days in generation C3 and it was not sensitiveto photoperiod and adapted ecological environment in YAAN.

• 通过选择，C1、C2、C3世代内的遗传变异仍很丰富，其中C3世代的平均雌雄开花间隔日数为4.；3天，其对光周期基本不敏感，基本适应雅安的生态环境。