Comprehensive Evaluation of Flax Varieties in the Baiyin Pilot of the 2021 Gansu Province Regional Experiment
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.
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