1的原則選取前3個(gè)主成分,累計(jì)貢獻(xiàn)率為 5 9 . 7 4 % ,代表55份種質(zhì)資源的絕大部分信息。聚類分析將55份小麥品種(系)在歐氏距離3.2處被分為3個(gè)類群,各類群都表現(xiàn)出不同的品種屬性,可根據(jù)育種目標(biāo)選擇不同類群的品種(系)配制組合,以提高育種效率。[結(jié)論]明確了55個(gè)小麥品種(系)的遺傳多樣性特點(diǎn)及其在農(nóng)藝、產(chǎn)量方面的利用價(jià)值,為新疆南疆冬小麥新品種的選育和遺傳多樣性的拓展提供理論依據(jù)。-龍?jiān)雌诳W(wǎng)" />

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2022—2023年南疆小麥區(qū)試品種綜合評(píng)價(jià)

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關(guān)鍵詞小麥;農(nóng)藝性狀;相關(guān)性分析;主成分分析;聚類分析

中圖分類號(hào)S512.1文獻(xiàn)標(biāo)識(shí)碼A

文章編號(hào) 0517-6611(2025)08-0024-05

doi:10.3969/j.issn.0517-6611.2025.08.006

開放科學(xué)(資源服務(wù))標(biāo)識(shí)碼(OSID):

AbstractObetie]Todeplyxplorethgeneticdiversitycharacteristicsofeatgerplasminthewinterwheatzoneofsouth Xijang andcompreheielyssitsilapotetial.Metodssdfusdo5atvarets(s)partitigin regionaltrial.Tesevarietisweresujectedoarigorousanalysisandevauationofkeyagroomicndyieldtraits,compaingpant height,tillrount,spkegainumber,housand-grainweight,ndoverallyieldesultTefdingevealamarkableoticdiversityamongte55heatgemplasmresouces.Thecoeficientsofvationfortheseagronomicndyieldtritsspanawideangefroma minimum of 1 . 2 3 % to a maximum of 1 4 . 3 9 % ,with an average of 8 . 3 2 % . This suggests a considerable genetic variation within the studied wheatvarietis,gcpottialfdgprogCoelaioalysfurtrlirateatiosongthaist bly,asignifiatgaieeaststweddibaiatieadoust essarilytranslateintogherield.Convesely,ositivecoelatiosareedetweeeldndothgainumberpancdtou sand-grainweigt,suggstigtattheritouldseagetsfoieldimproveenttratesAditioall,raitsschsalte count,plantigt,nengthndumbeallncleitositieoelatioshield,gigioi nificancenbreedingeforts.Tfurthercondensetevastnfomationcontaiedintesetraits,principalomponentanalysis(PC)wseployed.Byseletingthfirstheepricialompoetsasedteciteroofgenvausgreaterthanumulatieotrbutioatef (20 5 9 . 7 4 % wasachieved.Thisrepresentsasignificantreductionindimensionalitywhilecapturigthemajorityofgeneticvariationpresentinthe 5germplasmresouceClusteraalysisas hencondctedtoategoreteeatvarietis(ines)intodstictroupsAtanEuclideandis tanceof3.,5atvreeegupeditoedsticustsaceqritpoilsdretyrtsus teringallowsforeioofriefrftgrosfogeedei,ryaigedingeddi versityCosilielyinidprsidsadgftiesiaestiof5t rieties(lines)nsouXijagndtlualdldutliatiootetial.Tistudesvauableisightsintodigf novelwintereatvarietisandteexpasiofgneticdivesityinisgio,erbyoibutigtosustaiablealaldee and food security.

Key words Wheat;Agronomic traits;Correlation analysis;Principal component analysis;Cluster analysis

我國(guó)作為全球最大的小麥生產(chǎn)國(guó)與消費(fèi)國(guó),在小麥產(chǎn)業(yè)的地位舉足輕重,其產(chǎn)量占據(jù)全球總產(chǎn)量的 1 7 % ,消費(fèi)量占全球總量的 $1 6 \% ^ { [ 1 ] }$ 。(剩余8453字)

目錄
monitor