Radish (Raphanus sativus L.)is one of the most important vegetables origining from china, and its cultivation area is the third largest after potato and Chinese cabbage. With the development of production and the increase of people’s living level, people atach more and more imporantce to the quality of the products. From point of the radish breeding, many inheritant characters controlling the quality is quantitative traits, and it is difficult to controll them. Due to the shortage of the breeding research o...