| 利用PEG鉴定烤烟品种抗旱性研究 |
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| 引用本文： | 陈恒旺,周冀衡,李永平,杨虹琦,卢秀萍,马文广.利用PEG鉴定烤烟品种抗旱性研究[J].河南农业科学,2007(7):35-38. |
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| 作者姓名： | 陈恒旺 周冀衡 李永平 杨虹琦 卢秀萍 马文广 |
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| 作者单位： | 1. 湖南农业大学,烟草工程技术研究中心,湖南,长沙,410128
2. 云南省烟草科学研究所,云南,玉溪,653100 |
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| 基金项目： | 国家烟草专卖局资助项目
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云南省烟草专卖局资助项目 |
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| 摘 要： | 利用不同浓度的PEG模拟干旱胁迫对烤烟品种K326和红花大金元的抗旱性进行评价。结果表明:当PEG的浓度为20%时,两烤烟品种均不能正常萌发生长。当PEG浓度在12%~16%之间对不同烤烟品种进行抗旱性筛选鉴定较为有利。在该PEG浓度范围内进行干旱胁迫处理,K326在发芽势、发芽率、发芽指数和耐脱水力等干旱敏感指标上均明显高于红花大金元。研究表明,PEG浓度为8%左右,K326的一些萌发和生长指标在一定程度上得到提高。
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| 关 键 词： | 烤烟 品种 PEG 抗旱性鉴定 |
| 文章编号： | 1004-3268（2007）07-0035-04 |
| 修稿时间： | 2007-03-07 |
Identification of Drought Resistance of Flue-cured Tobacco with PEG |
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| CHEN Heng-wang,ZHOU Ji-heng,LI Yong-ping,YANG Hong-qi,LU Xiu-ping,MA Wen-guang.Identification of Drought Resistance of Flue-cured Tobacco with PEG[J].Journal of Henan Agricultural Sciences,2007(7):35-38. |
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| Authors: | CHEN Heng-wang ZHOU Ji-heng LI Yong-ping YANG Hong-qi LU Xiu-ping MA Wen-guang |
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| Institution: | 1. Research Centre of Tobacco Engineering and Technology, Hunan Agricultural University,Changsha, 410128, China; 2. Yunnan Tobacco Science Research Institute, Yuxi 653100,China |
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| Abstract: | The drought resistance of two flue-cured tobacco varieties,K326 and HD,was evaluated using different concentrations of PEG under drought stress.The results showed that the growth of flue-cured tobacco could not germinated normally when PEG concentration was 20%;and 12%-16% of PEG was the favorable concentration for screening the drought resistance of tobacco varieties.Under the condition of drought stress,the germination potential,the germination rate,germination index,dehydration tolerance and other drought indicators of K326 were significantly higher than those of HD.Some germination and growth indicators of K326 were improved to a certain degree under the concentration of 8% PEG. |
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| Keywords: | Flue-cured tobacco Variety PEG Identification of drought |
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