基于相关性和主成分分析对甘蓝型油菜农艺性状的评价

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关键词甘蓝型油菜； F2：3 代分离群体自交系;农艺性状;相关性分析;主成分分析

中图分类号S565.4文献标识码A

文章编号 0517-6611（2025）17-0021-04

doi ： 10.3969/j . issn. 0517-6611.2025. 17. 006

开放科学（资源服务）标识码（OSID）：

Evaluation of Agronomic Traits of Brassica napus Based on Correlationand Principal Component Analysis TANa，ZHAOWe-guo，TANHong-yunetal（choolofodenAgicultureandiotechology，AnkangUniversity，Ankang，ai 725000）

AbstractTo evaluate the contribution relationship of primary agronomic traits to yield of Brassica napus， 190F2：3 separate inbred lines of Brasicanapuseaterals.eedyielddioasseldperplat，ranchiomberofstachngthofpralo cence，siliquemrofpraryforescendplantightofasscnapusrealydbyelationdpripalompal sis.Theresultssowdthatthbrancngpostion，theumberofistbranchtelengthofpraryfloreseeandslenuberofpr maryinflorescencetndedtoeinheitedfromfemaleparentWHO，andtheplanthight，sedyieldandiomassyieldperplanttendedtobe inherited from male parent WHO1. The variation coeffcient of seed yield per plant in F2：3 separate inbred lines was the highest （38.23% ）， whereas that for the number of primary branches was the lowest （ 6.93% ）. Seed yield per plant showed a extremely significant positive correlationwithbomassyieldeplantrancngposio，umbrfirstbachtelgthofaryose，ilqueumbfn inflorescenceandplantheight，inwhichthecorelationcoeficientbetweenseedyieldandbiomass yieldperplantwasthe highest（ R=0.87 ）. But the number offirst branch showed a extremely significant negative correlation with branching position （ R=-0.43 ）.Expecting for the numberoffrstbanch，plantightsetrelysigniicatpositiecoelatedihanchositiothngthofprarifloeiliquenumberofmainiflorescence，seedyieldadiomassyeldperplantTesevenagronomicritscouldbesythesiedintoplanthght， firstbranch，siluemberofpriaryflorescefctsviaprialcomponntasisiteotalcmulatieortioatef （204 89.59% ，whichbasicallreflectedthecomprehensiveinformationofsvenagronomictraits.IntebredingadimprovementofBrasscnapus ，above three factors can be improved to achieve the goal of breeding.

Key WordsBrassica napus; F2：3 separate inbred lines;Agronomic traits;Correlation analysis;Principal component analysis

甘蓝型油菜 ΔB.napus，AACC，2n=38 属于十字花科芸驀属，由白菜型油菜 （B，rapa，AA，2n=20） ）与甘蓝（B.olera- ）天然杂交形成的异源四倍体作物，是我国第一大油料作物，也是食用植物油和动物饲料原料的重要来源[2]。（剩余8831字）