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在温室补充光照条件下，研究了低温春化时间和ＧＡ３浓度处理对早熟和晚熟大白菜生长开花的影响。结果表明，随着春化时间的延长，从播种到开花的时间缩短，叶片数减少，株高增加。ＧＡ３处理也随着浓度的提高表现出与低温春化处理相似的结果。在大白菜加代繁殖中，春化处理１５ｄ（天），然后用３００ｍｇ·Ｌ－１ＧＡ３处理幼苗是促进大白菜抽薹开花的最佳因素组合。
The effects of low temperature vernalization time and GA3 treatment on the growth and flowering of early and late ripe Chinese cabbage were studied under supplemental lighting in greenhouses. The results showed that with the vernalization time prolonged, the time from sowing to flowering reduced, the number of leaves decreased and the plant height increased. GA3 treatment also showed similar results with low temperature vernalization as the concentration was increased. In cabbage plus subculture, the vernalization treatment for 15 days (days) and then the seedling treatment with 300 mg · L-1 GA3 was the best combination of factors to promote the bolting and flowering of Chinese cabbage.