Abstract Taking 100 advanced inbred lines of Chinese cabbage〔Brassica campestris L. ssp. pekinensis (Lour)Olsson〕as experimental material,this paper studied the effects of plumule- and seeding-vernalization on bolting and flowering times.The results showed that both the bolting and flowering times of plumule-vernalized material were advanced 15.0 days and 11.5 days,respectively,than that of seedling-vernalized material.Besides,only seeding-vernalization without plumule-vernalization,the inbred line of‘Chunquanda’could not promote bolting and flowering,while seeding-vernalization could make it bolting.This phenomenon might due to the different controlling molecular mechanism of these 2 vernalization modes.Chinese cabbage varieties
with different winter natures had consistent changing trend of bolting and flowering under these 2 vernalization treatments,indicating that the effects of these 2 vernalization modes on different Chinese cabbage varieties had versatility and consistency.
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