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大白菜为北方冬春淡季长期供应的主要蔬菜。近几年来,因大白菜种子混杂而引起的经济纠纷不断发生。实行大白菜大母根春化育苗二级繁育体系,走就地自繁之路是解决大白菜种子混杂的有效方法。 1 繁种技术 1.1 每年利用大母根采种法,按品种标准严格去杂去劣,提纯繁殖原种。 1.2 把原种分为两份,一份用于继续选育原种,为下年春化育苗准备原种;一份用于春播育苗,繁殖生产用种。 1.3 2月初将萌动的原种进行春化处理,然后播种
Chinese cabbage is the main long-term supply of vegetables to the northern winter and spring off-season. In recent years, economic disputes caused by the mixed Chinese cabbage seeds continue to occur. The implementation of secondary breeding of Chinese cabbage vernalization nursery breeding system, take the road from the local Fanzhong is a solution to the effective method of Chinese cabbage seed mixed. A variety of technologies 1.1 The use of large planting methods each year, according to strict standards to go to miscellaneous and inferior species, purifying breeding species. 1.2 The original seed is divided into two parts, one for the continued breeding of the original seedlings for the next spring breeding seedlings; one for the spring planting seedlings, breeding production of species. 1.3 Early spring germination of the original species vernalization, and then sown