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| 施氮水平对马铃薯块茎形成期光合特性的影响 | |
| 引用本文： | 郑顺林,李国培,袁继超,孙 磊,刘 灵,周 虹. 施氮水平对马铃薯块茎形成期光合特性的影响[J]. 西北农业学报, 2010, 19(3): 98-103 |
| 作者姓名： | 郑顺林 李国培 袁继超 孙 磊 刘 灵 周 虹 |
| 作者单位： | 1. 四川农业大学,农学院,四川雅安,625014 2. 四川农业大学,农学院,四川雅安,625014;四川凉山州烟草专卖局,四川凉山615713 3. 四川省农业技术推广总站,成都,610041 |
| 基金项目： | 四川教育厅青年基金，四川省育种攻关项目，四川省天府英才培养项目 |
| 摘 要： | 通过随机区组试验研究了施氮水平对马铃薯块茎形成期叶片光合特性的影响。结果表明,施氮可促进叶绿素合成,提高气孔开闭变化幅度、光合光响应灵敏度及光能转化效率;低氮对马铃薯块茎形成期光合特性的影响程度较中、高氮处理小,光合作用自身气孔调节能力以施中氮处理最高;随施氮水平提高,马铃薯块茎形成期光补偿点(LCP)、表观量子效率(Φ)、最大净光合速率(Pmax)、表观暗呼吸速率均逐渐提高,高氮处理具有更高光能转化效率。 |
| 关 键 词： | 马铃薯 块茎形成期 氮肥水平 光合特性 |
| 收稿时间： | 2009-09-29 |
| 修稿时间： | 2009-12-12 |
Effect of Nitrogen Application Levels on Photosynthetic Characteristics at the Tuber Formation Stage in Solanum tuberosum L. |
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| ZHENG Shunlin,LI Guopei,YUAN Jichao,SUN Lei,LIU Ling and ZHOU Hong. Effect of Nitrogen Application Levels on Photosynthetic Characteristics at the Tuber Formation Stage in Solanum tuberosum L.[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2010, 19(3): 98-103 | |
| Authors: | ZHENG Shunlin LI Guopei YUAN Jichao SUN Lei LIU Ling ZHOU Hong |
| Affiliation: | ZHENG Shunlin1,LI Guopei1,2,YUAN Jichao1,SUN Lei1,LIU Ling1 , ZHOU Hong3(1.Agronomy College of Sichuan Agricultural University,Yaan Sichuan 625014,China,2.Liangshan Tobacco Monopoly Administration,Liangshan Sichuan 615713,3.Head Office of Sichuan Agro-technique,Chengdu 610041,China) |
| Abstract: | This study analyzed the effect of nitrogen application levels on photosynthetic characteristics in the period of tuber formation by randomized blocks trial.The result indicated that nitrogen application promoted synthesis of chlorophyll,increased the scope of stoma's open or shut,increased the light sensitivity of photosynthesis and conversion efficiency of light energy;the effect of low nitrogen level on photosynthetic characteristics was smaller than that of middle and high nitrogen level.Capability of st... |
| Keywords: | Solanum tuberosum L. Tuber formation stage Nitrogen application Photosynthetic characteristics |
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