胡麻新品系主要农艺性状分析与综合评价.pdfVIP

中国农学通报2024,40(4):14-19

ChineseAgriculturalScienceBulletin

胡麻新品系主要农艺性状分析与综合评价

郭娜，马建富，郭英杰，李爱荣，刘栋，张丽丽，胡杨，李峰

（张家口市农业科学院，河北张家口075000）

摘要：为了解胡麻种质资源的多样性，充分利用其有益基因，提高胡麻育种效率，以国内8个育种单位

引进的12份胡麻资源为试验材料，对其主要农艺性状进行分析和综合评价。结果表明，各农艺性状变

对产量的影响以分枝数、株高最大；主成分分析将主要农艺性状聚为3个主成分，分别是分枝数因子、工

艺长度因子和单果粒数因子；通径分析显示，增加分枝数和单株粒重能有效提供产量；聚类分析在欧氏

距离为4.02时，将12份参试材料分为3类，其中第3类群的主要特征为株高、工艺长度、分茎数、单株粒

重和产量最高，综合表现最好。

关键词：胡麻；新品系；农艺性状；主成分分析；聚类分析

中图分类号：S565.9文献标志码：A论文编号：casb2022-0226

AnalysisandComprehensiveEvaluationofMainAgronomicCharactersofNewStrainsofFlax

GUONa,MAJianfu,GUOYingjie,LIAirong,LIUDong,ZHANGLili,HUYang,LIFeng

(ZhangjiakouAcademyofAgriculturalSciences,Zhangjiakou,Hebei075000)

Abstract:Thepaperaimstounderstandthediversityofflaxgermplasmresources,makefulluseofits

beneficialgenesandimproveflaxbreedingefficiency.Themainagronomiccharactersof12flaxmaterials

introducedfrom8domesticbreedingunitswereanalyzedandevaluatedcomprehensively.Theresultsshowed

thatthevariationcoefficientofagronomiccharactersrangedfrom18.4%to63.13%,andthedifferencebetween

thetestedmaterialswasobvious.Correlationandgreycorrelationanalysisshowedthatbranchnumberand

plantheightwerethemostimportantfactorsaffectingtheyield.Themainagronomiccharactersweregrouped

intothreemaincomponentsbyprincipalcomponertanalysis,whichwerebranchnumberfactor,processlength

factorandsinglefruitnumberfactor.Pathanalysisshowedthatincreasingthenumberofbranchesandgrain

weightperplantcouldeffectivelyincreasetheyield.WhentheEuclideandistancewas4.02,the12test

materialsweredividedintothreegroupsbyclusteranalysis,andmaincharacteristic