摘要： 采用0,15,20,25,30d5种不同春化处理天数对5份大白菜和5份小白菜抽薹和开花的影响进行了研究。结果表明,对大白菜而言,冬性强的和较强的材料(B,D,E),春化时间以20d为宜,冬性弱的材料(A,C)以15d为佳,冬性强的材料初花天数为50d左右,冬性弱的材料为37d。对小白菜而言,春化天数以15d为佳,冬性强的材料初花天数为46d,其他为38d左右。春化天数长,开花略早,但差异不显著。在试验中,小白菜除J的冬性较强外,其他各材料冬性相差不大,不易分开,这可能与小白菜现蕾和开花需一定光照有关。可见小白菜在春化天数满足条件下,光照才是影响现蕾和开花的关键因子。

关键词: 大白菜, 小白菜, 现蕾, 开花

Abstract: 5 heading Chinese cabbage(Brassica campestris L.ssp.pekinensis) and 5 non-heading Chinese cabbage (Brassica campest ri s L.ssp.chinensis) were studied on bolting ability and flowerings tage through 5 di fferent veneration controls 0, 15, 20, 25, 30 days.Results showed, for Chinese cabbage materials with st rongest and stronger bolting ability,the bolting time is nearly 20 days, for example, B, D and E materials.The weaker bolting materials, for example A and C,the bol t ing time is nearly 15 days.For non-heading Chinese cabbage the bolting t ime is nearly 15 days.In this paper 5non-heading Chinese cabbage except that J material had stronger bol ting abi li ty, others were nearly the same in bol t ing abili ty.They could not be dis t inguished.The reason may be related to the light affecting bolting ability.Therefore, light is the main reason for bolting and flowering for non-heading Chinese cabbage when the bol t ing time is sufficient tobolt.

Key words: Heading Chinese cabbage, Non-heading Chinese cabbage, Bol ting, Flowering

中图分类号: 

• S634