白萝卜属十字花科作物,华南和华中生态型。在我国南方和日本种植很普遍,需种量很大,近几年在北方繁种面积逐步扩大。 1.特点 白萝卜的冬性较弱,在北方当年繁种,一般种子不需春化处理即可抽苔结实,但不同品种间冬性有差异,一般15℃以下低温,能促进植株春化而抽苔,生长的最适温度为20℃左右,6℃以下生长缓慢,苗期可忍受 White radish is a cruciferous crop, southern and central China ecotype. Planting is very common in southern China and Japan, requiring a great deal of seed. In recent years, the area under cultivation has gradually expanded. 1. Characteristics White radish winter is weak, in the northern year of breeding, the general seed without vernalization can be bolting and solidification, but there are differences between winter varieties of different varieties, generally below 15 ℃ low temperature, can promote plant vernalization The bolting, the optimum temperature for growth is about 20 ℃, 6 ℃ slow growth, seedling can tolerate