Effect of Artificial Vernalization on Bolting of Chinese Cabbages
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摘要: 采用4个春化温度（3、6、9、12℃）和4个春化时间（10，20，30，40 d）二因素裂区试验，对迷您黄1号品种进行耐抽薹性研究。结果表明，相同春化温度条件下，随春化时间延长，白菜播种至现蕾天数明显缩短，但当春化时间延长到30 d后，播种至现蕾天数缩短并不明显；相同春化时间条件下，春化温度越低，从播种至现蕾、开花的天数越短，最短的为3℃低温春化处理。本试验条件下，最佳春化条件为3~9℃低温春化处理20 d。Abstract: Chinese cabbage, Minninhuang 1, was used in the experimentation to study the bolting of the vegetable in an attempt to increase the number of generations in cultivation. A two factors split plot experiment under 4 temperatures (i.e., 3, 6, 9, and 12℃) and 4 vernalization durations (i.e., 10, 20, 30, and 40 d) was conducted. The results showed that at a same temperature, an extended vernalization significantly shortened the days between planting to budding of the cabbages. However, when the vernalization was prolonged to 30 d, no apparent correlation was observed. On the other hand, under a same duration for the vernalization, the lower the temperature, the shorter time from sowing to budding and flowering it became. The shortest time duration was found at 3℃. Hence, the optimum conditions for the vernalization appeared to be 3 to 9℃ in 20 d.
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Keywords:
- Chinese cabbage /
- vernalization temperature /
- vernalization time /
- bolting resistance
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表 1 不同春化处理对白菜现蕾、开花以及抽薹率的影响
Table 1 Effect of vernalization on floral bud emersion, flowering and bolting rate of Chinese cabbages
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表 2 不同春化温度对大白菜现蕾、开花的影响
Table 2 Effect of vernalization temperatures on budding and flowering of Chinese cabbages
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表 3 不同春化时间对大白菜现蕾、开花天数以及抽薹开花率的影响
Table 3 Effect of vernalization durations on budding, flowering and bolting rate of Chinese cabbages
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