| 甘蓝耐寒性生理生化指标研究 |
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| 引用本文： | 宋立晓,高兵,张边江,陈全战,严继勇.甘蓝耐寒性生理生化指标研究[J].江苏农业学报,2009,25(6). |
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| 作者姓名： | 宋立晓 高兵 张边江 陈全战 严继勇 |
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| 作者单位： | 1. 江苏省农业科学院蔬菜研究所,江苏,南京,210014
2. 南京晓庄学院,江苏,南京,211171 |
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| 基金项目： | "十一五"国家科技支撑计划项目，江苏省农业科技自主创新基金 |
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| 摘 要： | 为了找出与结球甘蓝耐寒性关系密切的指标,对6个耐寒性不同的甘蓝品种进行控制条件下不同温度处理,测定了与耐寒性相关的生理生化指标.结果表明:人工模拟气候条件下的冷害指数可以鉴定甘蓝耐寒性;5℃条件下种子的发芽率和萌发指数、10℃条件下种子的活力指数可作为甘蓝芽期耐寒性鉴定指标;5℃处理3 d甘蓝叶片中可溶性精含量、MDA含量、SOD活性、POD活性及5℃处理6 d时的脯氨酸含量可作为甘蓝苗期耐寒性鉴定指标.上述指标可为耐寒性结球甘蓝的品种选育提供依据.
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| 关 键 词： | 甘蓝 耐寒性 生理生化指标 |
Physiological and Biochemical Indices of Cold Tolerance in Cabbage |
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| SONG Li-xiao,GAO Bing,ZHANG Bian-jiang,CHEN Quan-zhan,YAN Ji-yong.Physiological and Biochemical Indices of Cold Tolerance in Cabbage[J].Jiangsu Journal of Agricultural Sciences,2009,25(6). |
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| Authors: | SONG Li-xiao GAO Bing ZHANG Bian-jiang CHEN Quan-zhan YAN Ji-yong |
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| Abstract: | To find out the indices closely related to the cold tolerance of cabbage, temperature treatments were de-signed on six cabbage varieties. The results showed that chilling injury indices were significantly correlated with old toler-ance under artificial simulated conditions, which were suitable for screening cold tolerance of cabbage. The seeds germina-tion rates and germination indices of six cabbage varieties at 5℃ and seed vigor index at 10℃ which were negatively corre-lated with cold tolerance,could be used as screening index of cold tolerance for cabbage in germinating stage. The soluble sugar contents, the MDA contents, the SOD activity and the POD activity in the leaves of six cabbage varieties at 5 ℃ after 3-d treatment and the proline contents at 5 ℃ after 6-d treatment were negatively correlated with cold tolerance respectively and could be used as physiological and biochemical indices for cold tolerance evaluation for cabbage at seedling stage. |
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| Keywords: | cabbage cold tolerance physiological and biochemical index |
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