导言芥(芸苔)属蔬菜,为我国蔬菜的主要属种之一。种类繁多,栽培广泛,供应期长而量大,在蔬菜生产、科研和教学方面,均占较大比重。芥属蔬菜的起源与分类,是蔬菜学中的难点问题之一。自18世纪以来,各国有关学者进行了大量的调查研究工作。到目前为止,这一问题已渐趋明朗。而我国有关学者,则人 Introduction mustard (Brassica) is a vegetable, one of the main species of vegetables in our country. A wide range of widely cultivated, long supply of large quantities, in vegetable production, research and teaching, both account for a large proportion. The origin and classification of mustard vegetables is one of the difficult problems in vegetable science. Since the 18th century, a great number of relevant scholars conducted a lot of investigations and studies. So far, the issue has become clearer. The relevant scholars in our country, then people