新疆农业大学学报2026，Vol.49Issue(2)：130-137,8.DOI:10.20088/j.cnki.jxau.2026.02.005
播幅和施氮水平对新芒1号老芒麦种子产量及质量的影响
Effects of Different Sowing Widths and Nitrogen Application Levels on Seed Yield and Quality of Elymus sibiricus L.
摘要
Abstract
In order to investigate the effects of sowing widths and nitrogen application rates on seed yield,yield components and seed quality of Elymus sibiricus L.cv.Xinman No.1,a two-factor randomized block design was adopted.Three sowing widths(3 cm,5 cm,10 cm)and four nitrogen application rates(0,45,90,135 kg/hm2)were set with three replications per treatment.Seed yield,yield components,ger-mination percentage,germination energy,germination index and vigor index were measured to screen the optimal planting combination for seed production of Elymus sibiricus L.cv.Xinman No.1.Sowing widths,nitro-gen application rates and their interaction significantly affected the number of tillers,reproductive shoots,spikelets per reproductive shoot,1000-grain weight and seed yield(P<0.05).The treatment of 10 cm so-wing width+90 kg/hm2 nitrogen had significantly higher number of tillers(1 570.37 shoots),reproductive shoots(944.69 shoots)and actual seed yield(1 680.63 kg/hm2)than other treatments(P<0.05).So-wing widths and nitrogen application rates significantly influenced germination energy,germination index and vigor index respectively(P<0.05).Compared with conventional drilling without nitrogen applica-tion,10 cm sowing width+90 kg/hm2 nitrogen performed the best,with germination energy of 90.25%,germination index of 13.16 and vigor index of 3.33(P<0.05).Path analysis showed that the number of reproductive shoots had the largest direct contribution to seed yield with a direct path coefficient of 0.907.The optimal seed yield and quality of Elymus sibiricus L.cv.Xinman No.1 could be obtained under the condition of 10 cm sowing width combined with 90 kg/hm2 nitrogen application rates.关键词
老芒麦/种子产量/宽幅播种/施氮水平Key words
Elymus sibiricus/seed yield/wide sowing/nitrogen application level分类
农业科技引用本文复制引用
熊洁,王茹佳,周易明,杨金钰,张树振,李嘉鑫,张冉冉..播幅和施氮水平对新芒1号老芒麦种子产量及质量的影响[J].新疆农业大学学报,2026,49(2):130-137,8.基金项目
新疆维吾尔自治区重点研发任务专项计划(2023B02031) （2023B02031）
国家牧草产业技术体系(CARS34) （CARS34）
新疆维吾尔自治区优质饲草产业技术体系(XJARS-13) （XJARS-13）
