Abstract：‘Jinglv No.1’ is a new pak-choi F1 hybrid developed by crossing 2 self-incompatible lines ‘11346’ and ‘11501’．The plant is of semi-erect type with beautiful beam waist．The plant is about 21 cm in height and about 30 cm in spread width．It can be harvested 40 days after sowing in autumn．The leaf is glossy dark green in color with flat surface and beautiful appearance．The petiole is green in color，about 5.2 cm in width and about 0.8 cm in thickness．The single plant weight is about 0.17 kg．Its crude fiber content is 6.42 g · kg-1，and VC content is 331.0 mg · kg-1（FW）．It is highly resistant to downy mildew，resistant to TuMV and black rot；medium tolerance to bolting．It can yield about 40.5 t · hm-2．It is suitable for summer and autumn cultivation in Beijing，Tianjin，Hebei，Shaandong，Shanxi，Gansu，Ningxia，Zhejiang in protected and open fields．
