白菜类蔬菜小株采种占地时间短,种子产量高。农户利用自建的育苗设施制种,成本投入减少,管理上省工,制种效益好。但要注意小株采种的适用范围和采用合适的育苗方式。高质量商品种子可以提升蔬菜品种的潜能与竞争力,是保持品种长久生命力的重要因素之一。随着白菜类蔬菜(大白菜、小白菜)杂种一代推广面积的增加,大田种子用种量也随之猛增。大白菜、 Small cabbage vegetable seed covers a short time, high seed yield. Farmers use their own nursery facilities seed production, reduce the cost of investment, management, labor-saving, good seed production. However, attention should be paid to the application of small plants and the adoption of appropriate breeding methods. High-quality commodity seeds can enhance the potential and competitiveness of vegetable varieties, is one of the important factors to maintain the long-term vitality of varieties. With the promotion of the hybrid generation of Chinese cabbage (Chinese cabbage, Chinese cabbage), the amount of seed used in field seedings has also soared. Chinese cabbage,