| 大白菜晚抽薹性快速评价方法 |
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| 引用本文： | 余阳俊,张凤兰,赵岫云,张德双,张振贤. 大白菜晚抽薹性快速评价方法[J]. 中国蔬菜, 2004, 1(6): 16-18 |
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| 作者姓名： | 余阳俊 张凤兰 赵岫云 张德双 张振贤 |
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| 作者单位： | 中国农业大学农学与生物技术学院; 北京市农林科学院蔬菜研究中心; |
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| 基金项目： | 北京市科技新星项目 ( 95 2 873 70 0 )，国家“863”项目( 2 0 0 1AA2 4112 4) |
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| 摘 要： | 以春夏王等 7个大白菜品种或品系为试材 ,采用萌芽种子于 3℃条件下低温春化处理 2 0d后 ,播种于温度 2 0～ 2 2℃、光周期 16h(夜间用日光灯补光 ,补光光强 10 0～ 130 μmol·m-2 ·s-1)的温室中 ,筛选苗期大白菜晚抽薹性评价指标 ,建立分级标准。结果表明 ,显蕾期、短缩茎 (薹 )长、抽薹指数均可作为晚抽薹性评价指标 ,其中调查抽薹指数更为简便、快速、准确 ,可操作性强。综合考虑显蕾、抽薹、开花性状 ,确立了以抽薹指数作为形态指标、6级抽薹调查分级标准和 5个抽薹性评价等级的大白菜晚抽薹性快速评价方法。完成一个评价周期仅需4 5d左右。用该方法评价的结果和田间结果一致。
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| 关 键 词： | 大白菜 晚抽薹性 抽薹指数 评价方法 |
| 收稿时间： | 2003-10-10; |
| 修稿时间： | 2003-10-10 |
Rapid Identification Method of Late Bolting Character in Chinese Cabbage |
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| Yu Yangjun ,,Zhang Fenglan ,Zhao Xiuyun ,et al.. Rapid Identification Method of Late Bolting Character in Chinese Cabbage[J]. China Vegetables, 2004, 1(6): 16-18 |
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| Authors: | Yu Yangjun Zhang Fenglan Zhao Xiuyun et al. |
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| Affiliation: | 1.College of Agronomy and Biotechnology; China Agricultural University; Beijing 100094;2.National Engineering Research Center for Vegetables |
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| Abstract: | Seven Chinese cabbage cultivars or lines were used for establishing a rapid identification method of late bolting character by vernalizing the germinated seeds at 3 ℃ for 20 days, then the seeds were sowed and grown in a greenhouse at 20-22 ℃ and 16 hours day length(using 100-130 μmol·m -2 ·s -1 of supplemental lighting in night to provide longer days). The results indicated that time (days) of bud appearance, length of dwarf stem and bolting index were suitable indexes for identification of late b... |
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| Keywords: | Chinese cabbage Late bolting Bolting index Evaluation |
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