追氮时期对不同小麦品种光合特性和产量的影响  

Effect of Nitrogen Topdressing Stage on the Photosynthesis and Yield of Different Wheat Varieties

作　　者：吴安昌[1] 黄正来[1] 吴延华[1] 

机构地区：[1]安徽农业大学农学院,安徽合肥230036

出　　处：《麦类作物学报》2010年第2期342-345,共4页Journal of Triticeae Crops

基　　金：国家科技支撑计划项目(2006BAD02A06-21;2007BAD89B10)

摘　　要：为了给小麦的优质高产栽培提供依据,以强筋小麦烟农19、中筋小麦皖麦52和弱筋小麦安农0305为材料,研究了追氮时期对小麦产量及光合特性的影响。结果表明,追氮时期对叶面积、叶绿素含量和光合速率影响显著,不同处理间均差异显著。另外,追氮时期对于小麦产量的影响显著,表现为拔节、孕穗期追氮比返青、起身期追氮更能提高小麦产量,其中拔节期追氮对小麦产量的提高尤为明显。The purpose of this experiment was to provide the basis for high-quality and high-yielding cultivation,and the expepriment was carried out in the experimental farm of Department of Agronomy,Anhui Agricultural University.Three varieties,strong-gluten Yannong 19,medium-gluten Wanmai 52 and weak-gluten Annong 0305 were selected as materials.The effect of nitrogen topdressing stage on the yield and photosynthesis was studied with split-plot design with two factors.The results showed that the effect of nitrogen topdressing stage on leaf area,leaf chlorophyll content and photosynthetic rate of wheat was significant;there were some significant differences observed among the treatments.Besides,the effect of nitrogen topdressing stage on wheat yield was also significant,topdressing at jointing and booting stages could increase wheat yield than topdressing at returning green and establish stages.

关 键 词：小麦 追氮时期 光合特性 产量 

分 类 号：S512.1[农业科学—作物学] S311