为科学准确地对2021年甘肃省胡麻品种区域试验白银试点参试材料进行综合评价，为胡麻新品种的登记和推广提供依据。采用描述性统计、相关性分析、主成分分析等多元分析方法对甘肃省胡麻品种区域试验白银试点的18份胡麻参试材料的千粒重、产量等10个主要性状进行综合评价。结果表明，18份参试胡麻材料的生育期为 109～113 d，与对照品种陇亚13号生育期差异不大。不同参试材料的各主要性状变异系数差异较大，介于1.34%~114.37%。对各性状进行相关性分析表明，株高与工艺长度、单株果数与主茎分枝数、单株粒重与单株果数均呈极显著正相关；单株果数与主茎分枝数、单株粒重与有效分茎数及主茎分枝数均呈显著正相关；有效分茎数和产量呈显著负相关。主成分分析表明，单株生产力因子、千粒重因子、株高因子和分茎因子的特征值累计达80.06%，能够全面地代表胡麻的特征特性。对产量进行的单因素方差分析表明，参试胡麻材料1310-6、0724-18、2009-1A-1、GFWK-03、H2011、D439、 09-3-11 的折合产量均显著高于对照品种陇亚13号(P < 0.05)，可进入下一步试验环节。

The aim of this study was to scientifically and accurately evaluate the test materials of flax varieties in the Baiyin pilot of the 2021 Gansu Province Regional Experiment, aiming to provide a basis for the registration and promotion of new flax varieties. Descriptive statistics, correlation analysis, principal component analysis, and other multivariate analysis methods were used to comprehensively evaluate the yield 1000-grain weight and 10 main traits of 18 flax varieties in the Baiyin pilot of the Gansu Province Regional Experiment. The results showed that the growth period of the 18 tested flax varieties ranged from 109 to 113 days, with little difference from the control variety Longya 13. The coefficients of variation for various traits among different tested materials varied significantly, ranging from 1.34% to 114.37%. Correlation analysis of the main traits revealed that extremely significantly positive correlations were found in plant height and process length, fruit number per plant and main stem branching number, grain weight per plant and fruit number per plant. Additionally, significantly positive correlations were found in number of fruit per plant and main stem branching number, grain weight per plant and number of effective stem branches, grain weight per plant and main stem branching number. There was also a significant negative correlation between effective stem number and plot yield. Principal component analysis indicated that productivity factor per plant, 1000-grain weight factor, plant height factor, and stem division factor cumulatively reached 80.06% of characteristic values, fully representing the characteristics of flax. One-way analysis of variance demonstrated that the average yields of flax varieties 1310-6, 0724-18, 2009-1A-1, GFWK-03, H2011, D439, and 09-3-11 were all significantly higher than the control variety Longya 13 (P < 0.05), qualifying them for the next experimental phase.

S563.2

国家现代农业产业技术体系资助(CARS-14)；甘肃省陇原青年英才支持计划(甘人社通〔2023〕142号)。