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大白菜原种繁殖的质量好坏直接影响来年生产一代杂种的生产安排情况,同时也会给单位的经济效益造成一定的影响,因此,抓好大白菜原种繁殖是大白菜生产中的重要一环,现将技术要点介绍如下:1 浸种、催芽:一般于1月下旬至2月上旬播种。播种前3天左右开始浸种,水温45℃左右,用水量为种子量的5～6倍。浸种时种子要不断搅拌,使种子浸泡均匀,数分钟后,水温降低,浸泡5个小时后,捞出洗净附着于种皮上的粘质,晾至略干,再进行催芽。催芽温度
The quality of the original breeding of Chinese cabbage directly affects the production arrangements for the generation of hybrids in the coming year and will also have an impact on the economic benefits of the unit. Therefore, it is important to do a good job in the original breeding of Chinese cabbage Ring, the technical points are as follows: 1 soaking, germination: usually in late January to early February planting. 3 days before sowing seed soaking, water temperature 45 ℃, the amount of water for the seeds of 5 to 6 times. Seed soaking should continue stirring, the seeds soak evenly, after a few minutes, the water temperature is reduced, soak for 5 hours, remove and stick to the mucilage attached to the seed coat, dry to a little dry, and then germination. Germination temperature