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榨菜花芽分化对低温要求不严，长光照促进花芽分化。在杭州（Ｎ３０°）周年播种后，每月都有花芽分化发生，大多分布在旬平均温度５～２５℃，日照１１．５小时以上的３～４月。周年播种的榨菜，从二叶期开始进行不间断光照（２４小时／日）诱导至现蕾平均需３８．３天，比自然光照处理缩短５９．３天。从二叶期至现蕾期或至初花期进行不间断光照处理，其种子成熟期分别比从二叶期至角果绿熟期处理的延迟３４和９天。前两种处理在不间断光照诱导停止后，出现生殖生长逆转的现象。榨菜抽薹开花结实需要温暖和长日照的气候。在自然光照和不间断光照诱导下，前者７０％的种子成熟期集中在５月份，后者大部分在３～６月份。不间断光照促进抽薹开花，其诱导效应受温度制约，低温抑制抽薹，高温使受精不良
Mustard flower bud differentiation lax requirements of low temperature, long light to promote flower bud differentiation. After annual planting in Hangzhou (N30 °), flower bud differentiation took place every month, most of which were distributed between March and April when the average temperature was 5 ~ 25 ℃ and sunshine was 11.5 hours. On the annual planting of mustard, from the second leaf period began uninterrupted light (24 hours / day) induced bud to the average of 38.3 days, 59.3 days shorter than the natural light treatment. From the second leaf stage to the budding stage or the first flowering stage for uninterrupted light treatment, the seed maturity period was delayed by 34 and 9 days respectively from the second leaf stage to the greengrocer maturation stage. The first two treatments resulted in a reversal of reproductive growth after uninterrupted lighting induction ceased. Mustard bolting flowering strong need warm and long sunshine climate. Under natural light and uninterrupted lighting, 70% of the seeds mature in May and most of them in March and June. Uninterrupted lighting to promote bolting flowering, the induction effect of temperature control, low temperature inhibition bolting, high temperature so that poor fertilization