| 土壤盐分对棉花功能叶气体交换参数和叶绿素荧光参数日变化的影响 |
| |
| 引用本文： | Zhang GW,Zhang L,Tang MX,Zhou LL,Chen BL,Zhou ZG. 土壤盐分对棉花功能叶气体交换参数和叶绿素荧光参数日变化的影响[J]. 应用生态学报, 2011, 22(7): 1771-1781 |
| |
| 作者姓名： | Zhang GW Zhang L Tang MX Zhou LL Chen BL Zhou ZG |
| |
| 作者单位： | 南京农业大学农业部南方作物生理生态重点开放实验室,南京,210095 |
| |
| 基金项目： | 国家高技术研究发展计划项目(2007AA10Z206)资助 |
| |
| 摘 要： | 2007—2008年在南京农业大学牌楼试验站进行盆栽试验,选择耐盐品种中棉所44和盐敏感品种苏棉12号为材料,试验设置5个土壤盐分水平(0、0.35%、0.60%、0.85%和1.00%),研究土壤盐分对棉花功能叶气体交换参数和叶绿素荧光参数日变化的影响.结果表明:随土壤盐分水平的升高,棉花功能叶中Na+、C l-和Mg2+含量升高,K+和Ca2+含量降低.低于0.35%盐分处理对叶片气体交换参数和叶绿素荧光参数的影响较小,高于0.35%的盐分处理显著降低了棉花功能叶的净光合速率(Pn),提高了棉花功能叶对日间光辐射强度和温度的敏感程度,导致光温抑制现象加重,并改变了Pn和气孔导度(Gs)的日变化趋势,使其由单峰曲线逐渐变为持续下降趋势.随日间光辐射强度和温度的变化,棉花叶片最大光化学效率(Fv/Fm)、光系统Ⅱ(PSⅡ)量子产量(ΦPSⅡ)和光化学猝灭系数(qP)的日变化趋势呈V型曲线,最低值出现在12:00—13:00,非光化学猝灭系数(qN)的日变化趋势呈单峰曲线;盐分处理降低了棉花功能叶Fv/Fm、ΦPSⅡ和qP,提高了qN,且增大了其变化幅度.耐盐品种中棉所44功能叶片中较低的Na+、C l-含量及...
|
| 关 键 词： | 棉花 土壤盐分 功能叶 气体交换参数 叶绿素荧光参数 日变化 |
Diurnal variation of gas exchange and chlorophyll fluorescence parameters of cotton functional leaves under effects of soil salinity |
| |
| Zhang Guo-wei,Zhang Lei,Tang Ming-xing,Zhou Ling-ling,Chen Bing-lin,Zhou Zhi-guo. Diurnal variation of gas exchange and chlorophyll fluorescence parameters of cotton functional leaves under effects of soil salinity[J]. The journal of applied ecology, 2011, 22(7): 1771-1781 |
| |
| Authors: | Zhang Guo-wei Zhang Lei Tang Ming-xing Zhou Ling-ling Chen Bing-lin Zhou Zhi-guo |
| |
| Affiliation: | ZHANG Guo-wei,ZHANG Lei,TANG Ming-xing,ZHOU Ling-ling,CHEN Bing-lin,ZHOU Zhi-guo(Ministry of Agriculture Key Laboratory of Crop Physiology and Ecology in Southern China,Nanjing Agricultural University,Nanjing 210095,China) |
| |
| Abstract: | A two-year(2007-2008) pot experiment with cotton varieties Sumian 12(salinity-sensitive) and Zhongmiansuo 44(salinity-tolerance) was conducted at the Pailou experimental station of Nanjing Agricultural University to study the diurnal variation of the gas exchange and chlorophyll fluorescence parameters of cotton functional leaves under five levels(0,0.35%,0.60%,0.85%,and 1.00%) of soil salinity.With the increase of soil salinity,the concentrations of Na+,Cl-,and Mg2+ in functional leaves increased,whereas t... |
| |
| Keywords: | cotton(Gossypium hirsutum) soil salinity functional leaf gas exchange parameter chlorophyll fluorescence parameter diurnal variation |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ |
|
