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| 增强UV-B辐射对烤烟幼苗生长及生理特性的影响 | |
| 引用本文： | 李大肥,李军营,邓建华,方敦煌,蔡庆生. 增强UV-B辐射对烤烟幼苗生长及生理特性的影响[J]. 中国烟草学报, 2011, 17(4): 47-50. DOI: 10.3969/j.issn.1004-5708.2011.04.009 |
| 作者姓名： | 李大肥 李军营 邓建华 方敦煌 蔡庆生 |
| 作者单位： | 1. 南京农业大学生命科学学院,南京210095 ;云南省烟草公司文山州公司,文山663000 2. 云南省烟草农业科学研究院,玉溪,653100 3. 南京农业大学生命科学学院,南京,210095 |
| 基金项目： | 云南省烟草公司科技项目“云南烤烟清香型风格物质基础研究”(07A01); “云南省烤烟质量形成的光环境生理基础研究”(2010YN03) |
| 摘 要： | 为研究UV-B对烤烟生长和生理代谢的影响,为生产优质烟叶提供参考依据,通过盆栽试验,采用3个不同UV-B辐射强度对烤烟幼苗进行辐射处理,以UV-B辐射处理7d后幼苗的新鲜叶片测定各项生理指标。结果表明:烤烟幼苗干物质随着UV-B辐射强度的增加而降低;高UV-B辐射使叶片中色素含量降低,叶绿素a、叶绿素b含量低于对照,类胡萝卜素含量受UV-B增加的影响相对较小;丙二醛含量在高UV-B辐射下含量明显增高;脯氨酸、类黄酮等紫外线吸收物质含量随着UV-B辐射强度的增加而增加。 |
| 关 键 词： | 烤烟 幼苗 紫外线-B 质体色素 丙二醛 脯氨酸 紫外吸收物 |
Effects of intensified ultraviolet-B radiation on growth and physiological characteristics of flue-cured tobacco |
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| LI Da-fei,LI Jun-ying,DENG Jian-hua,FANG Dun-huang,CAI Qing-sheng. Effects of intensified ultraviolet-B radiation on growth and physiological characteristics of flue-cured tobacco[J]. Acta Tabacaria Sinica, 2011, 17(4): 47-50. DOI: 10.3969/j.issn.1004-5708.2011.04.009 | |
| Authors: | LI Da-fei LI Jun-ying DENG Jian-hua FANG Dun-huang CAI Qing-sheng |
| Affiliation: | LI Da-fei~(1,3),LI Jun-ying~2,DENG Jian-hua~2,FANG Dun-huang~2,CAI Qing-sheng~1 1 College of Life Sciences,Nanjing Agricultural University,Nanjing 210095,China,2 Yunnan Academy of Tobacco Agricultural Sciences,Yuxi 653100,3 Yunnan Provincial Tobacco Company Wenshan Branch,Wenshan 663000 |
| Abstract: | Pot experiments were conducted to study effects of different UV-B radiation on growth and physiological index of flue-cured tobacco(Nicotiana tabacum L.K326) seedling.Results showed that intensified UV-B radiation reduced dry weight.chlorophyll a,chlorophyll b,and total chlorophyll content.Slight effect was pbserved on carotenoid content intensified UV-B radiation had significant effect on malondialdehyde.The content of proline and flavonoid,as natural osmotic substance in tobacco leaves were also increased... |
| Keywords: | flue-cured tobacco seedling Ultraviolet-B radiation pigment malondialdehyde proline Ultraviolet-B absorbing compounds |
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