In this paper,screening of 28 (BC2F1) resulted in a total of 683 surviveing BC2F1 plants from 8400 interogression lines (ILs) under the drought stress that killed the recurrent parents (RPs).

• 对28个玉米BC2F1回交群体进行苗期耐旱性鉴定,以轮回亲本致死为筛选耐旱单株的指标,从8400个植株中筛选出683个耐旱株。