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《小麥關(guān)聯(lián)犚犐犔群體產(chǎn)量性狀與品質(zhì)性狀的相關(guān)分析》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、麥類作物學(xué)報(bào)2011,31(3):JournalofTriticeaeCrops小麥關(guān)聯(lián)犚犐犔群體產(chǎn)量性狀與品質(zhì)性狀的相關(guān)分析丁安明1,李君1,崔法1,趙春華1,馬航運(yùn)2,王洪剛1(1.作物生物學(xué)國家重點(diǎn)實(shí)驗(yàn)室/山東省作物生物學(xué)重點(diǎn)實(shí)驗(yàn)室/國家小麥改良中心泰安分中心/山東農(nóng)業(yè)大學(xué)農(nóng)學(xué)院,山東泰安271018;2.棗莊市農(nóng)業(yè)科學(xué)研究院,山東棗莊277100)摘要:為給小麥高產(chǎn)優(yōu)質(zhì)育種提供參考依據(jù),以濰麥8號(hào)/煙農(nóng)19和濰麥8號(hào)/濟(jì)麥20構(gòu)建的分別含229和485個(gè)家系的兩個(gè)關(guān)聯(lián)重組自交系(RIL)群體為材料,在三個(gè)環(huán)境下對(duì)12
2、個(gè)產(chǎn)量相關(guān)性狀和品質(zhì)性狀進(jìn)行了分析評(píng)價(jià)。結(jié)果表明,小麥單株產(chǎn)量與其構(gòu)成因素、每穗小穗數(shù)、株高和加工品質(zhì)正相關(guān),與蛋白含量等營養(yǎng)品質(zhì)負(fù)相關(guān),與抽穗期和開花期無顯著相關(guān)性。產(chǎn)量構(gòu)成因素間呈顯著負(fù)相關(guān),穗粒數(shù)和千粒重與每穗小穗數(shù)和株高正相關(guān),而單株穗數(shù)與每穗小穗數(shù)負(fù)相關(guān)。穗粒數(shù)與蛋白含量和濕面筋含量負(fù)相關(guān),與吸水率和硬度正相關(guān)。單株穗數(shù)與品質(zhì)性狀負(fù)相關(guān),但多數(shù)未達(dá)到顯著水平。千粒重與蛋白含量負(fù)相關(guān),與濕面筋含量顯著正相關(guān)。說明增加產(chǎn)量與提高蛋質(zhì)白含量等營養(yǎng)品質(zhì)確實(shí)存在矛盾,但高產(chǎn)和優(yōu)良的加工品質(zhì)不矛盾,二者可以協(xié)調(diào)。在育種中,可以通過
3、調(diào)節(jié)產(chǎn)量構(gòu)成因素實(shí)現(xiàn)與營養(yǎng)品質(zhì)的協(xié)調(diào),如千粒重和濕面筋含量可以共同提高。此外,各性狀間的相關(guān)性在兩個(gè)群體中略有差異,在不同環(huán)境中變化很大甚至相反,說明性狀間的相關(guān)性受到遺傳背景和環(huán)境因素(如土壤、氣候、前茬等)及其互作的影響較大。關(guān)鍵詞:小麥;產(chǎn)量相關(guān)性狀;品質(zhì)性狀;相關(guān)分析中圖分類號(hào):文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):10091041(2011)03犆狅狉狉犲犾犪狋犻狅狀犃狀犪犾狔狊犻狊狅狀犢犻犲犾犱犚犲犾犪狋犲犱犜狉犪犻狋狊犪狀犱犙狌犪犾犻狋狔犜狉犪犻狋狊狅犳犠犺犲犪狋犝狊犻狀犵犜狑狅犃狊狊狅犮犻犪狋犲犱犚犐犔犘狅狆狌犾犪狋犻狅
4、狀狊1,犔犐犑狌狀1,犆犝犐犉犪1,犣犎犃犗犆犺狌狀犺狌犪1,犕犃犎犪狀犵狔狌狀2,犠犃犖犌犎狅狀犵犵犪狀犵1犇犐犖犌犃狀犿犻狀犵(1.StateKeyLaboratoryofCropBiology/ShandongKeyLaboratoryofCropBiology/TaianSubcenterofNationalWheatImprovementCenter/AgronomyCollege,ShandongAgriculturalUniversity,Taian,Shandong271018,China;2.Munic
5、ipalAcademyofAgriculturalSciences,Zaozhuang,Shandong277100,China)犃犫狊狋狉犪犮狋:Todate,highyieldandfinequalityaremaingoalsaswellasprincipalcontradictioninwheatbreedingprogram.Inthepresentstudy,twoassociatedrecombinantinbredlines(RILs)derivedfromthecrossesWeimai8/Yannong19a
6、ndWeimai8/Jimai20with229and485lines,respectively,wereusedasmaterialstoevaluatethecorrelationsfortwelveyieldrelatedtraitsandqualitytraitsevaluatedinthreeenvironments.Thecorrelationswerepositivebetweengrainyieldperplant(GY)withitscomponents(YC,fullfilledgrainnumberper
7、panicle,1000grainweightandpaniclenumberperplant),spikletsperspike,plantheightandprocessingquality,whereasthecorrelationswerenegativebetweenGYwithproteincontentorwetglutenincontent.AndtherewerenosignificantcorrelationsbetweenGYwithheadingdateandfloweringperiod.Thecor
8、relationsbetweendifferentYCweresignificantlynegative.Grainnumberperspikeand1,000grainweightwerepositivelycorrelatedtospikletpersp