Abstract：‘Fuza No.7’is a new tumorous stem mustard F1 hybrid developed by crossing CMS line 96145-1A as female parent and self line LF as male parent．It is resistant to premature bolting，and has great elasticity for sowing date，strong ecological adaptability．Its tumorous stem is round in shape and has compact plant type．It can be sown in August 20-25（15-20 days earlier than normal）and be harvested in mid November to early December．It is suitable for cultivation in the area with altitude between 600-800 m in Chongqing as an early maturing variety or raw material for processing industry．Its yield is generally 18.0-22.5 t?hm-2 as early cultivation or 37.5-45.0 t?hm-2 as raw processing material．
