菜花是一种营养丰富、味道鲜美的细菜。近年来人民生活水平不断提高,对菜花的需要量逐年增加,菜花种植面积迅速扩大,菜花种子的供应日益紧缺,但菜花采种对环境条件要求严格,操作技术比较复杂。我国长江以北大多数地区是2年生秋播保护地采种区,越冬时间长,保护设施费用太高,采种比较难,面积难以扩大。长江以南是2年生秋播露地采种区,气候适宜菜花采种,产量高,成本低,但有的年份因阴雨或霜冻造成大幅度减产,甚至无收。因而,到目前为止,菜花种价格昂贵,有时出现供不应求。所以,扩大采种面积,提高采种技术,降低种子价格,是发展菜花生产急需解决的一个问题。本文就西宁 Cauliflower is a nutrient-rich, delicious dish. In recent years, people’s living standards continue to increase, the demand for cauliflower increased year by year, cauliflower planting area expanded rapidly, the supply of cauliflower seeds increasingly scarce, but cauliflower seed requirements of the environmental conditions, the operating technology is more complicated. Most of the area north of the Yangtze River in China is a 2-year-old seed storage area for autumn sowing and planting. It takes a long time to wintering and the cost of protecting facilities is too high. It is difficult to seed and the area is hard to expand. To the south of the Yangtze River is a 2-year-old open-cut open field planted with suitable climate for cauliflower production with high yield and low cost. However, some years have experienced drastic reduction in production due to overcast or frost or even no harvest. Thus, so far, cauliflower species are expensive and sometimes appear in short supply. Therefore, expanding the planting area, raising the seed collection technology and reducing the price of seeds is an urgent problem to be solved in the development of cauliflower production. This article on Xining