为了解藜麦种质资源在甘肃省陇中旱作区农艺性状和产量的关系，更高效的选育藜麦新品种，以38份藜麦种质资源为材料，采用相关性分析、主成分分析和聚类分析方法对影响产量的主要农艺性状进行了分析。结果表明，藜麦产量与各个农艺性状的相关程度从高到低依次为冠幅、全生育期、籽粒直径、千粒重、株高，全生育期与其余农艺性状均存在极显著相关性。冠幅、全生育期、籽粒直径、千粒重、株高等5个农艺性状可以归为3个主成分因子，其累积贡献率为76.657%，同时在类间距离为17.5处，将所有种质资源可分为三大类群。

TIn order to understand the relationship between agronomic traits and yield of quinoa germplasm resources in the dry area of Gansu Province for more efficient breeding of new quinoa cultivars， the main agronomic characteristics of 38 quinoa resources were analyzed by using the methods of correlation analysis， principal component analysis and cluster analysis. The results showed that the degree of correlation between agronomic traits and yield is the crown width>growth period> grain diameter>1000-kernel weight > plant height. The growth period was significantly correlated with other agronomic traits. Five agronomic traits， including crown width， whole growth period， grain diameter， thousand grain weight and plant height， could be classified into three main components， the cumulative contribution rate was 76.657%. At the distance between clusters of 17.5， all quinoa cultivars can be divided into three groups.

S512.9

国家自然基金“不同海拔对藜麦产量和品质的影响及生理生态机制”(31660357)；甘肃省青年人才托举项目“藜麦种质资源响应盐胁迫的生理生态机制研究”；甘肃省科技重大专项“甘肃省小杂粮新品种选育与示范”(18ZD2NA008)；甘肃省农业科学院“三百”增产增收科技行动项目“环县毛井镇扶贫产业培育及扶贫模式研究与示范”(2017GAAS-CGZH-03-07)。