1990年宜春从明恢77中选育突变株1株↓1991年宜春F1↓单株群体112蔸,选留12个单株1992年宜春F2↓每个单株插50蔸,共600蔸,选留10个单株1993年宜春F3↓每个单株插50蔸,共500蔸,选留8个单株1994年宜春F4↓每个单株插50蔸,共400蔸,选留8个单株1995年宜春F5↓每个单株插50蔸,共400 Yichun in 1990 from the Ming Hui 77 in a mutant strain ↓ 1991 Yichun F1 ↓ single plant population of 112 蔸, leaving 12 single plant selection 1992 Yichun F2 ↓ each plant inserted 50 蔸, a total of 600 蔸, the election Leaving 10 single plant in 1993 Yichun F3 ↓ each plant inserted 50 蔸, a total of 500 蔸, elected to retain 8 plants 1994 Yichun F4 ↓ Each plant inserted 50 蔸, a total of 400 蔸, leaving a choice of 8 single 1995 Yichun F5 ↓ each plant inserted 50 蔸, a total of 400