【摘要】 研究了小麦安农98005旗叶的光合生理特性及其与产量性状的相互关系。结果表明,小麦安农98005旗叶具有较强的捕获光能和光合作用的能力,从孕穗期到乳熟期,旗叶的Pn、Fv/Fm、ETR和产量呈单峰变化,在开花期Pn、Fv/Fm、ETR和产量达到峰值,干物质积累量也最高;进入灌浆期以后,Pn、Fv/Fm、ETR和ФPSⅡ衰减速率慢,并能维持一定的叶面积系数,这可能是安农98005的高产的重要生理基础。更多还原

【Abstract】 The photo-biological characters and its relationship with the yield of wheat cultivar,Annong 98005 were studied in this paper.The results indicated that the flag leaves of the Annong 98005 had better ability of photosynthesis.The changes of Pn,Fv/Fm,ETR and the yield of flag leaves showed single peak type from booting stage to milk ripening stage.The Pn,Fv/Fm,ETR,yield and dry matter of flag leaves reached the maximum in the anthesis stage.In later stage after filling,Pn,Fv/Fm,ETR,ФPSⅡand the area of the flag leaves decreased slowly.更多还原