| K营养对烤烟叶片中几种抗性物质及野火病发生的影响 |
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| 引用本文： | 董艳,董坤,李秀琼,陈云德,鲁耀,周敏.K营养对烤烟叶片中几种抗性物质及野火病发生的影响[J].云南农业大学学报,2007,22(3):361-364. |
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| 作者姓名： | 董艳 董坤 李秀琼 陈云德 鲁耀 周敏 |
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| 作者单位： | [1]云南农业大学资源与环境学院,云南昆明650201 [2]云南省弥勒县植保植检站,云南弥勒652300 |
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| 基金项目： | 云南省教育厅资助项目（03Y397B）. |
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| 摘 要： | 通过对云南中部地区不同生长状况、不同发病程度的34个烤烟样品的钾、总酚、类黄酮含量分析和田间病害调查，结果表明：烟叶一般K含量为1%～4%，K含量高于4%的较少，无低于1%的样品；在K含量为2%～4%的范围内，随钾含量的增加，总酚、类黄酮含量提高，过氧化物酶活性增强，烤烟野火病病情逐渐减轻； K含量＞4%及<2%时，总酚、类黄酮含量降低，过氧化物酶活性减弱，野火病发病严重。
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| 关 键 词： | 烟叶 钾营养 总酚 类黄酮 过氧化物酶 野火病 |
| 文章编号： | 1004-390X（2007）03-0361-04 |
| 收稿时间： | 2006-7-19 |
| 修稿时间： | 2006-07-192006-10-20 |
Effect of Potassium Nutrition of Flue-cured Tobacco Leaf on Several Resistant Substances of Flue-cured Tobacco Leaf and Wild Fire Disease |
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| DONG Yan,DONG Kun,LI Xiu-qiong,CHEN Yun-de,LU Yao,ZHOU Min.Effect of Potassium Nutrition of Flue-cured Tobacco Leaf on Several Resistant Substances of Flue-cured Tobacco Leaf and Wild Fire Disease[J].Journal of Yunnan Agricultural University,2007,22(3):361-364. |
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| Authors: | DONG Yan DONG Kun LI Xiu-qiong CHEN Yun-de LU Yao ZHOU Min |
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| Institution: | 1. Faculty of Resources and Environment, Y J U, Kunming 650201, China; 2. Mile Station of Quarantine and Plant Protection, Mile 652300, China |
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| Abstract: | The contents of K,total phenols,flavonoids and peroxidase activity in the flue-cured tobacco leaves were measured at laboratory;disease index were investigated under field condition.Results showed that:Generally,ranges of K concentrations in tobacco leaves were 1%~4%;there were a few samples of K contents >4%;there was no sample of K contents <1%.When K contents were 2%~4%,total phenols and flavonoids contents increase and peroxidase activity increased,wild fire disease index was decreased with K contents increase;when K contents >4% or <2%,total phenols and flavonoids contents and peroxidase activity was decreased,wild fire disease index was high. |
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| Keywords: | flue-cured tobacco leaf potassium total phenols flowonoids resistant substances wild fire disease |
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