土壤中不同氮磷含量对小麦异源矮秆种质系生长的影响  

Effects of Different Nitrogen and Phosphorus Contents in Soils on Growth of Heterogenetic Dwarf Wheat Lines

作　　者：裴艳茹 崔雨[1] 鲍印广[1] 王洪刚[1] 李兴锋[1] Pei Yanru;Cui Yu;Bao Yinguang;Wang Honggang;Li Xingfeng(College of Agronomy,Shandong Agricultural University/State Key Laboratory of Crop Biology,Taian 271018,China)

机构地区：[1]山东农业大学农学院/作物生物学国家重点实验室,山东泰安271018

出　　处：《山东农业科学》2018年第7期107-111,共5页Shandong Agricultural Sciences

基　　金：山东省自然科学基金项目(ZR2015CM034)

摘　　要：以小麦-长穗偃麦草后代矮秆种质31504、31504-1、31504-3为材料,研究了土壤中不同氮、磷含量对其农艺性状和产量性状的影响。结果表明:矮秆种质材料在高氮磷水平下株高、穗长均高于低氮磷水平下表现,但对株高构成指数的影响不大;矮秆种质系在高氮磷含量条件下旗叶面积较大,但籽粒不饱满,千粒重较低;不同氮磷含量对矮秆种质系的每穗小穗数、不育小穗数和穗粒数等穗部性状影响不明显。研究结果对于矮秆种质系的进一步利用具有一定指导意义。A field experiment was conducted to examine the effects of different nitrogen and phosphorus contents in soil on agronomic characters and yield of three dwarf Trititrigia germplasm lines 31504,31504-1 and 31504-3.The results showed that under the conditions of high nitrogen and phosphorus,the plant height and ear length were higher than those in low nitrogen and phosphorus levels,but had little effect on the composition index of plant height;the dwarf germplasm materials showed larger flag leaf area,but the grains were not full and the thousand grain weight was lower.Different nitrogen and phosphorus contents had no obvious effect on spikelet number per spike,sterile spikelet number and grain number per spike.The research results had some guiding significance for the further utilization of dwarf wheat germplasm.

关 键 词：小麦 长穗偃麦草 矮秆种质系 氮磷水平 株高构成指数 农艺性状 产量 

分 类 号：S512.110.6[农业科学—作物学]