不同施氮水平对烤烟叶片光合与荧光特性的影响
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农Байду номын сангаас学
现代农业科技 圆园19 年第 21 期
不同施氮水平对烤烟叶片光合与荧光特性的影响
魏永涛 1 母明新 2 史洪涛 2 何佶弦 2 卢若翰 1 王小东 1 顾会战 2 *
渊1 河南科技大学农学院袁河南洛阳 471023曰 2 四川省烟草公司广元市公司冤
摘要 采用大田试验袁以云烟 87 为试验材料袁研究了不同施氮水平对烤烟叶片生长期间的光合与荧光特性的影响袁探索出适合实际
actual production and provide theoretical basis for agricultural production.The results showed that with the continuous increase of nitrogen levels袁the net photosynthetic rate袁transpiration rate袁and stomata conductance of flue-cured tobacco leaves were gradually increasing袁reaching a maximum at a concentration of 60.0 kg/hm2袁and continuing to increase nitrogen level would inhibit the normal growth of flue-cured tobacco. In the normal growth of flue-cured tobacco袁the intercellular CO2 concentration decreased with the increase of nitrogen. Within a certain range袁with the increase of nitrogen level袁the minimum fluorescence intensity渊F0冤after dark adaptation袁the maximum fluorescence渊Fm冤of flue-cured tobacco leaves袁and the maximum photochemical quantum yield 渊 Fv / Fm冤 of PSII presented the trend of rising first and then decreasing 袁 and the non - photochemical quenching coefficient渊NPQ冤showed the trend of falling first and then rising袁both reaching the maximum and the minimum at the concentration of 60.0 kg/hm2. Based on the comprehensive analysis袁the nitrogen concentration of 60.0 kg/hm2 was the optimal nitrogen supply level for normal growth of flue-cured tobacco.
中图分类号 S572曰S147.5 文献标识码 A
文章编号 1007-5739渊2019冤21-0008-04
开放科学渊资源服务冤标识码渊OSID冤
Effects of Different Nitrogen Levels on Photosynthetic and Fluorescence Characteristics of Flue-cured Tobacco Leaves WEI Yong-tao 1 MU Ming-xin 2 SHI Hong-tao 2 HE Ji-xian 2 LU Ruo-han 1 WANG Xiao-dong 1 GU Hui-zhan 2* 渊1 College of Agronomy袁Henan University of Science and Technology袁Luoyang Henan 471023曰 2 Guangyuan Tobacco Corporation of Tobacco Co. Ltd.
的最大荧光渊Fm冤和 PS域的最大光化学量子产率渊Fv /Fm冤都呈现先上升后下降的趋势袁而非光化学猝灭系数渊NPQ冤表现为先降后升的趋势袁
都在施氮水平为 60.0 kg/hm2 时达到最大值和最小值遥因此袁氮素水平为 60.0 kg/hm2 时是烤烟正常生长的最佳供氮水平遥
关键词 烟草曰施氮水平曰光合特性曰叶绿素荧光
Key words tobacco曰nitrogen level曰photosynthetic characteristic曰chlorophyll fluorescence
of Sichuan Province冤 Abstract Taking Yunyan 87 as the experimental material袁the field experiments were conducted to study the effects of different nitrogen levels on photosynthesis and fluorescence characteristics of flue-cured tobacco leaves during their growth period in order to find out the suitable nitrogen level for
生产的氮素水平袁为农业生产提供理论依据遥结果表明袁随着氮素水平的不断提高袁烤烟叶片的净光合速率尧蒸腾速率尧气孔导度都是逐渐
升高的趋势袁在施氮水平为 60.0 kg/hm2 时达到最大袁继续提高氮素水平会对烤烟的正常生长起到一定的抑制作用曰在烤烟植株正常生长的
氮素水平内袁胞间 CO2 浓度随着氮素的升高呈现降低趋势遥在一定范围内袁随着氮素水平的升高袁暗适应后的最小荧光强度渊F0冤尧烤烟叶片
现代农业科技 圆园19 年第 21 期
不同施氮水平对烤烟叶片光合与荧光特性的影响
魏永涛 1 母明新 2 史洪涛 2 何佶弦 2 卢若翰 1 王小东 1 顾会战 2 *
渊1 河南科技大学农学院袁河南洛阳 471023曰 2 四川省烟草公司广元市公司冤
摘要 采用大田试验袁以云烟 87 为试验材料袁研究了不同施氮水平对烤烟叶片生长期间的光合与荧光特性的影响袁探索出适合实际
actual production and provide theoretical basis for agricultural production.The results showed that with the continuous increase of nitrogen levels袁the net photosynthetic rate袁transpiration rate袁and stomata conductance of flue-cured tobacco leaves were gradually increasing袁reaching a maximum at a concentration of 60.0 kg/hm2袁and continuing to increase nitrogen level would inhibit the normal growth of flue-cured tobacco. In the normal growth of flue-cured tobacco袁the intercellular CO2 concentration decreased with the increase of nitrogen. Within a certain range袁with the increase of nitrogen level袁the minimum fluorescence intensity渊F0冤after dark adaptation袁the maximum fluorescence渊Fm冤of flue-cured tobacco leaves袁and the maximum photochemical quantum yield 渊 Fv / Fm冤 of PSII presented the trend of rising first and then decreasing 袁 and the non - photochemical quenching coefficient渊NPQ冤showed the trend of falling first and then rising袁both reaching the maximum and the minimum at the concentration of 60.0 kg/hm2. Based on the comprehensive analysis袁the nitrogen concentration of 60.0 kg/hm2 was the optimal nitrogen supply level for normal growth of flue-cured tobacco.
中图分类号 S572曰S147.5 文献标识码 A
文章编号 1007-5739渊2019冤21-0008-04
开放科学渊资源服务冤标识码渊OSID冤
Effects of Different Nitrogen Levels on Photosynthetic and Fluorescence Characteristics of Flue-cured Tobacco Leaves WEI Yong-tao 1 MU Ming-xin 2 SHI Hong-tao 2 HE Ji-xian 2 LU Ruo-han 1 WANG Xiao-dong 1 GU Hui-zhan 2* 渊1 College of Agronomy袁Henan University of Science and Technology袁Luoyang Henan 471023曰 2 Guangyuan Tobacco Corporation of Tobacco Co. Ltd.
的最大荧光渊Fm冤和 PS域的最大光化学量子产率渊Fv /Fm冤都呈现先上升后下降的趋势袁而非光化学猝灭系数渊NPQ冤表现为先降后升的趋势袁
都在施氮水平为 60.0 kg/hm2 时达到最大值和最小值遥因此袁氮素水平为 60.0 kg/hm2 时是烤烟正常生长的最佳供氮水平遥
关键词 烟草曰施氮水平曰光合特性曰叶绿素荧光
Key words tobacco曰nitrogen level曰photosynthetic characteristic曰chlorophyll fluorescence
of Sichuan Province冤 Abstract Taking Yunyan 87 as the experimental material袁the field experiments were conducted to study the effects of different nitrogen levels on photosynthesis and fluorescence characteristics of flue-cured tobacco leaves during their growth period in order to find out the suitable nitrogen level for
生产的氮素水平袁为农业生产提供理论依据遥结果表明袁随着氮素水平的不断提高袁烤烟叶片的净光合速率尧蒸腾速率尧气孔导度都是逐渐
升高的趋势袁在施氮水平为 60.0 kg/hm2 时达到最大袁继续提高氮素水平会对烤烟的正常生长起到一定的抑制作用曰在烤烟植株正常生长的
氮素水平内袁胞间 CO2 浓度随着氮素的升高呈现降低趋势遥在一定范围内袁随着氮素水平的升高袁暗适应后的最小荧光强度渊F0冤尧烤烟叶片