草业学报2026，Vol.35Issue(4)：86-99,14.DOI:10.11686/cyxb2025186
宁夏干旱区燕麦新种质生产性能和种子产量综合评价研究
Multi-trait evaluation of the production performance and seed yield of new oat germplasm materials in the arid area of Ningxia
摘要
Abstract
There is limited genetic diversity among dryland oat germplasm resources and a paucity of oat varieties suitable for cultivation in the arid area of Ningxia.To address these problems,we conducted an experiment with a single-factor randomized block design to compare the performance of 21 new oat germplasm materials and three main varieties(CK1,CK2,CK3)at the Yanchi Sidunzi Experimental Base of Ningxia University in 2023.Differences in their agronomic traits,seed production performance,and germination characteristics were analyzed by principal component analysis(PCA)and cluster analysis methods.The results show that the new strain L9performed best in terms of core production indexes such as ear length(30.13 cm),grain number per plant(141.67 grains),crude protein yield(0.58 g·plant-1),seed width(3.36 mm),and actual seed yield(4726.33 kg·ha-1).L2 had multi-dimensional advantages of plant height(159.33 cm),dry weight per plant(5.69 g),1000-grain weight(38.53 g),germination rate(98.67％),and seed yield(4423.53 kg·ha-1).The PCA multi-trait evaluation model showed that L9,L2,and L17 ranked as the top three varieties,with multivariate scores 23.6％—41.8％higher than those of CK1,CK2,and CK3.The cluster analysis based on Euclidean distance divided the test materials into three groups,among which group Ⅱ(L2,L9,L19)showed significantly better performance than the other groups in terms of key indicators such as seed yield,germination characteristics,and biomass accumulation(P＜0.05).Two drought-resistant and high-yielding oat germplasm materials,L2 and L9,were screened out,and their seed yield was 18.02％—40.47％higher than that of the main varieties in the region.The results of this study not only identify excellent oat germplasm lines for cultivation in arid areas,but also highlight core parental resources for breeding new drought-resistant oat varieties.关键词
燕麦/新种质/生产性能/种子产量/主成分分析/聚类分析Key words
oats/new germplasm/production performance/seed yield/principal component analysis/cluster analysis引用本文复制引用
王一博,牟乐,明雪花,张建勇,袁琦,杜建明,王斌,王腾飞,张译尹,兰剑..宁夏干旱区燕麦新种质生产性能和种子产量综合评价研究[J].草业学报,2026,35(4):86-99,14.基金项目
优质牧草提质增效关键技术研究与集成示范项目(NGSB-2021-15-02),宁夏高等学校一流学科建设(草学学科)项目(NXYLXK2017A01),"一年两熟"人工草地可持续发展模式研究与示范项目(2021BBF02001)和宁夏抗旱节水优质饲草新品种选育与良种繁育项目(2019NYYZ0402)资助. （NGSB-2021-15-02）
