| 不同烟草种质材料在水分胁迫下的生理反应 |
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| 引用本文： | 谭春燕,钱晓刚,韩晓红,孙芳,孙兵,徐友凤,宋雪. 不同烟草种质材料在水分胁迫下的生理反应[J]. 种子, 2010, 29(6) |
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| 作者姓名： | 谭春燕 钱晓刚 韩晓红 孙芳 孙兵 徐友凤 宋雪 |
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| 作者单位： | 1. 贵州大学农学院,贵阳,550025
2. 贵州省烟草科学研究所,贵阳,550001 |
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| 基金项目： | 贵州省烟草专卖局科技项目"贵州省自育烟草品种(系)抗旱性能评价与鉴定" |
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| 摘 要： | 采用盆栽控水试验,初步研究了在水分胁迫下烟草的生理反应及其与抗旱性的关系。结果表明,烟草各生理指标对水分胁迫反应灵敏。在水分胁迫下光合速率下降26.6%~81.1%,蒸腾速率和气孔导度下降23.3%~69.4%,27%~78.7%,胞间CO2浓度上升5.4%~62.8%。试验在水分胁迫下测定了11个烟草种质材料的相关生理指标,由此可划分出不同抗旱性能的材料。
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| 关 键 词： | 烟草种质材料 水分胁迫 生理反应 |
Physiological Responses of Different Flue-cured Tobacco Germplasm Under Water Stress |
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| TAN Chun-yan,QIAN Xiao-gang,HAN Xiao-hong,SUN Fang,SUN Bing,XU You-feng,SONG Xue. Physiological Responses of Different Flue-cured Tobacco Germplasm Under Water Stress[J]. Seed, 2010, 29(6) |
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| Authors: | TAN Chun-yan QIAN Xiao-gang HAN Xiao-hong SUN Fang SUN Bing XU You-feng SONG Xue |
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| Affiliation: | TAN Chun-yan1,QIAN Xiao-gang1,HAN Xiao-hong2,SUN Fang1,SUN Bing1,XU You-feng1,SONG Xue1(1.College of Agricultrue,Gui Zhou University,Guiyang 550025,China,2.Tobacco ScienceResearch Institute of GuizhouProvince,Guiyang 550001,China) |
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| Abstract: | This paper preliminarily studied the physiological responses of tobacco and its relationship with drought-resistance under water stress conditions by pot experiment.The results showed that the physiological indexi of tobacco were sensitive to water stress.Photosynthetic rate dropped 26.6% to 81.1%,transpiration rate and stomatal conductance decreased 23.3% to 69.4%,27% to 78.7%,and intercellular CO_2 concentration rose 5.4% to 62.8% under water stress condition. |
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| Keywords: | tobacco germplasm water stress physiological responses |
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