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| 苗期土壤水分亏缺后玉米光合生理的恢复 | |
| 引用本文： | 梁哲军,陶洪斌,赵海祯,刘惠民,王璞,卫霞.苗期土壤水分亏缺后玉米光合生理的恢复[J].华北农学报,2009,24(2). |
| 作者姓名： | 梁哲军 陶洪斌 赵海祯 刘惠民 王璞 卫霞 |
| 作者单位： | 1. 中国农业大学农学,与生物技术学院,北京,100193;山西省农科院棉花研究所,山西,运城,044000 2. 中国农业大学农学,与生物技术学院,北京,100193 3. 山西省农科院棉花研究所,山西,运城,044000 4. 山西省农业科学院,山西,太原,030006 |
| 基金项目： | 国家高技术研究发展计划(863计划)，山西省科技攻关项目 |
| 摘 要： | 通过模拟土壤水分亏缺试验,研究了玉米在土壤水分亏缺后光合生理的恢复机制.结果表明:不同处理玉米光合生理在复水后30 d内均可以恢复正常生长.轻度亏缺处理玉米叶片气孔导度和蒸腾强度在复水后0～10 d可恢复正常,光合速率和胞间CO2浓度在复水后10～20 d恢复正常,但叶绿素荧光参数(Fv/Fm、Fv/Fo、qP、qN)和叶片光合色素含量的恢复相对较为缓慢.重度水分亏缺处理玉米光合生理指标恢复滞后于轻度亏缺处理.轻度亏缺处理复水后玉米净光合速率的恢复主要受气孔因素影响,重度水分亏缺处理玉米净光合速率的恢复在复水0～10 d主要受非气孔因素影响,复水10 d后主要受气孔因素影响. |
| 关 键 词： | 玉米 土壤水分亏缺 光合生理 恢复 |
Photosynthetic Physiological Recovery of Maize after Water Deficit at Seedling Stage |
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| LIANG Zhe-jun,TAO Hong-bin,ZHAO Hai-zhen,LIU Hui-min,WANG Pu,WEI Xia.Photosynthetic Physiological Recovery of Maize after Water Deficit at Seedling Stage[J].Acta Agriculturae Boreali-Sinica,2009,24(2). | |
| Authors: | LIANG Zhe-jun TAO Hong-bin ZHAO Hai-zhen LIU Hui-min WANG Pu WEI Xia |
| Institution: | 1.China Agricultural University;Beijing 100193;China;2.Cotton Research Institute;Shanxi Academy of Agriculture Science;Yuncheng 044000;3.Shanxi Academy of Agriculture Science;Taiyuan 030006;China |
| Abstract: | A pot experiment was conducted to study the recovery mechanism of maize photosynthetic after water deficit during seedling stage.The results indicated that,maize leaves in different water deficit treatments could restore to normal growth within 30 d after re-water.Under mild water deficit,10 days was need to restore to normal stomatal conductance(Gs)and transpiration rate(Tr),20 days was need to restore to normal net photosynthetic rate(Pn)and intercellular CO2 concentration(Ci),longer duration was need to ... |
| Keywords: | Maize Water deficit of soil Photosynthetic physiological Recovery |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |