The effect of photoperiod insensitive gene Ppd1 on development of winter wheat were studied in Shijiazhuang environment,by using 6 sets of near-isogenic lines respectively in 6 genetic background of AVALON? BRIGAND? BRIMSTONE?

• 利用携带光周期迟钝基因(Photoperiodl简称Ppd_1)的6套近等基因系分别与其背景亲本AVALON、BRIGAND、BRIMSTONE、MERCIA、NORMAN及RENDZVOUS相比较,研究该基因在石家庄地区生态条件下对冬小麦生育期及各生育阶段的影响。