随着蔬菜生产的发展，大白菜F1代以优质、抗病、丰产两倍受人们的青睐。由于大白菜F1代杂交亲本之间的差异，许多优良品种的种子产量较低，而满足不了生产发展的需要。为提高单位面积的种子产量．在春季利用小株采集大白菜F1代种子的过程中，除应注意培育壮苗、合理施肥、及时 With the development of vegetable production, F1 generation of Chinese cabbage is of high quality, disease-resistant and high-yielding double popular. Due to the differences between the F1 hybrid parents in Chinese cabbage, many excellent varieties have lower seed yield, which can not meet the needs of production development. To increase seed yield per unit area. In the spring using small plants to collect F1 seeds of Chinese cabbage in the process, in addition should pay attention to nurturing seedlings, fertilization, timely