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萝卜为十字花科一、二年生植物,世界各地广泛栽培。萝卜营养丰富。医疗保健价值极高,是我国大面积栽培的主要蔬菜品种之一。萝卜杂种优势十分显著,优良的杂种一代不仅能提高产量也能改进品质和抗逆性,利用萝卜自交不亲和性,配制杂交一代已成为广泛应用的方法。在我国北方地区一般多采用春季育苗法进行制种。多年实践证明,春季育苗制种用塑料薄膜夜间加盖草苫等阳畦育苗,制种单产高,设备及管理简单,容易掌握。现将制种技术介绍如下:
Radish is a cruciferous, biennial plants, widely cultivated around the world. Nutritious radishes. Medical care is extremely valuable and is one of the major vegetable varieties cultivated in large areas in China. Heterosis is very significant radish, excellent hybrid generation can not only improve the yield but also improve the quality and resistance, the use of radish self-incompatibility, the preparation of hybrid generation has become a widely used method. In northern China, the general use of spring nursery seed production. Years of practice has proved that plastic seedlings with plastic seedlings at night covered with lawn grass and other Yangzai nursery seed production of high yield, equipment and management is simple and easy to master. Seed production technology now introduced as follows: