“门源”小油菜属于白菜类型,是春性型早熟小油菜,全生育期(播种到成熟)将近80天。株高50～60厘米,茎基紫色。根为直根系,主根人土不深,支根较集中,根群主要分布在10厘米的表土层。幼苗直立,子叶以上的幼茎在现蕾后逐渐长成茎(抽苔), “Door source” small rape belongs to the type of cabbage, spring is the type of precocious rape, the whole growth period (sowing to mature) for nearly 80 days. Plant height of 50 to 60 cm, stem base purple. Roots are straight roots, the main root of human soil is not deep, more concentrated roots, the root mass is mainly distributed in 10 cm of topsoil. Seedlings erect, young cotyledons above the stems after budding gradually grow into stems (bolting)