低氮胁迫对玉米染色体片段导入系产量和苗期性状的影响  

Effects of Low Nitrogen Stress on the Yield and Seedling Traits of Maize Chromosome Fragment Introgression Line in Maize

作　　者：邢向茹[1] 陈晨[1] 刘瑞响[1] 赵璞[1] 李成璞[1] 张祖新[2] 

机构地区：[1]河北农业大学农学院,河北保定071000 [2]华中农业大学作物遗传育种改良国家重点实验室,湖北武汉430070

出　　处：《安徽农业科学》2011年第21期12670-12672,12686,共4页Journal of Anhui Agricultural Sciences

基　　金：国家973项目(2009CB118400)

摘　　要：[目的]探讨玉米染色体片段导入系在氮胁迫下的生长反应。[方法]在正常供氮(N+)与氮胁迫(N-)条件下,对玉米染色体片段导入系产量和苗期性状进行了研究。[结果]Ye478与5个导入系产量和苗期性状有明显差异;与N-相比,N+条件下产量和不同处理时期苗期生物量均有增加,其中L58和L28产量因子增幅较小,是氮胁迫条件下氮高效利用的导入系;L8增幅较大,是氮胁迫条件下氮低效利用的导入系。[结论]为耐低氮玉米品种的选育提供了理论依据。[Objective]The aim was to study the growth reaction of maize chromosome fragment introgression line under N stress.[Method] The changes of yield factor and seedling traits were studied by using maize chromosome fragment introgression line under the normal nitrogen fertilization（N ＋） and low nitrogen stress（N-） conditions.[Result]The Ye478 with five introgression line yield and seedling characters had obvious difference.The yield and seedling biomass were more higher over the 3 treatment stages under N ＋ than N-condition,among them L58 and L28 with little increasing rates were a high nitrogen using efficiency introgression line under nitrogen stress,while L8 with more increasing rates was a low nitrogen using efficiency introgression line under nitrogen stress.[Conclusion]The research provides theoretical basis for breeding maize varieties with a resistance to low nitrogen.

关 键 词：玉米 氮胁迫 产量 苗期性状 处理时期 

分 类 号：S513[农业科学—作物学]