藜麦主要农艺性状对单株产量的影响分析  

Analysis of the Effect of the Main Agronomic Traits of Quinoa on Yield per Plant

作　　者：赖运平 王智强 刘思怡 蒋云[3] 韦献雅 向达兵[2] 曾子入 蒋文静 邹亮 LAI Yunping;WANG Zhiqiang;LIU Siyi;JIANG Yun;WEI Xianya;XIANG Dabing;ZENG Ziru;JIANG Wenjing;ZOU Liang(Institute of Coarse Cereal,Chengdu Agricultural College,Chengdu 611130,China;Key Lab.of Coarse Cereal Processing,Ministry of Agriculture and Rural Affairs,Chengdu University,Chengdu 610106,China;Biotechnology and Nuclear Technology Research Institute,Sichuan Academy of Agricultural Sciences,Chengdu 610066,China)

机构地区：[1]成都农业科技职业学院杂粮研究所,四川成都611130 [2]成都大学农业农村部杂粮加工重点实验室,四川成都610106 [3]四川省农业科学院生物技术核技术研究所,四川成都610066

出　　处：《中国野生植物资源》2025年第3期26-31,共6页Chinese Wild Plant Resources

基　　金：农业农村部杂粮加工重点实验室/国家杂粮加工技术研发分中心/四川省杂粮产业化工程技术研究中心开放基金课题(2024CC006);四川杂粮创新团队(SCCXTD-2024-20);天府粮仓现代农业产教联合体项目(2024LHT)。

摘　　要：目的:探明藜麦单株产量与主要农艺性状的关系,为藜麦种质资源评价和高产品种选育提供理论依据。方法:以53份藜麦为供试材料,调查单株产量、株高、千粒重、主穗长等7个农艺性状,采用相关性分析、主成分分析、线性回归分析和通径分析等多种统计方法揭示主要农艺性状对单株产量的影响。结果:单株产量与千粒重、籽粒直径呈极显著正相关(P<0.01),与茎粗、株高呈显著正相关(P<0.05)。多元线性回归分析表明,6个农艺性状可解释52.4%的单株产量变异,籽粒直径、株高对单株产量的回归系数达到显著水平(P<0.05)。通径分析结果表明,籽粒直径对单株产量的直接通径系数和决策系数最大,主要通过千粒重对单株产量起促进作用,株高主要通过主穗长对单株产量起促进作用。结论:籽粒直径和株高是影响藜麦单株产量的主要性状,藜麦高产品种选育需要重点关注籽粒大小和株高。Objective:To explore the relationship between yield per plant and major agronomic traits of quinoa,and provide a theoretical basis for the evaluation of quinoa germplasm resources and the selection and breeding of high-yielding varieties.Methods:Using 53 diverse quinoa resources as test materials,seven key agronomic traits were measured,such as yield per plant,plant height,thousand grain weight and main spike length.Various statistical methodologies,including correlation analysis,principal component analysis,linear regression analysis and path analysis,were used to study the impact of these main agronomic traits on yield per plant.Results:The yield per plant showed an extremely significant positive correlation with thousand grain weight and grain diameter(P<0.01),and a significant positive correlation with stem diameter and plant height(P<0.05).Multiple linear regression analysis showed that six agronomic traits accounted for 52.4%of the variance in yield per plant,and the regression coefficients of grain diameter and plant height on yield per plant reached a significant level(P<0.05).The results of path analysis demonstrated that grain diameter had the largest direct path coefficient and decision coefficient on plant yield,primarily contributing to plant yield through thousand grain weight.Plant height contributed to single plant yield mainly through main spike length.Conclusion:Grain diameter and plant height were the primary traits affecting quinoa yield per plant.So the selection of high-yielding quinoa varieties needs to focus on grain size and plant height.

关 键 词：藜麦 单株产量 相关分析 回归分析 通径分析 

分 类 号：S519[农业科学—作物学]