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1、河北農(nóng)業(yè)科學(xué),2014,18(3):76-78,88JournalofHebeiAgriculturalSciences編輯杜曉東胡麻種間雜交種主要農(nóng)藝性狀與產(chǎn)量的關(guān)系研究張麗麗,米君,李世芳(張家口市農(nóng)業(yè)科學(xué)院,河北張家口075000)摘要:胡麻種間雜交技術(shù)是我國胡麻育種上的一個重大突破,克服了胡麻栽培種與野生種之間的不親和性。通過分析胡麻種間雜交種各主要農(nóng)藝性狀與產(chǎn)量之間的相關(guān)性,探討了胡麻雜交種主要農(nóng)藝性狀對產(chǎn)量的影響。結(jié)果表明:單位面積產(chǎn)量與分莖數(shù)、單果粒數(shù)、單株產(chǎn)量和千粒重呈正相關(guān)關(guān)系,但相關(guān)程度均未達到顯著水平,其中與千粒重的相關(guān)性最高,相關(guān)系數(shù)為0.795;與株高、工藝長
2、、主莖分枝數(shù)和有效果數(shù)呈負相關(guān)關(guān)系,其中與株高的相關(guān)性達到了顯著水平,與工藝長的相關(guān)性達到了極顯著水平。通過品種(品系)各農(nóng)藝性狀的隸屬度函數(shù)對參試胡麻品種進行了綜合評價,篩選出綜合表現(xiàn)最好的胡麻材料是雜交品系1062。與常規(guī)栽培種(雙對照)相比,胡麻種間雜交種的株高和工藝長較短,分莖數(shù)較多,千粒重較大,產(chǎn)量較高,增產(chǎn)優(yōu)勢明顯。關(guān)鍵詞:胡麻;種間雜交種;農(nóng)藝性狀;產(chǎn)量;相關(guān)系數(shù);綜合評價中圖分類號:S563.2文獻標(biāo)識碼:A文章編號:1008-1631(2014)03-0076-03StudyontheRelationshipbetweenMajorAgronomicCharacter
3、sandYieldofFlaxHybridsZHANGLi-li,MIJun,LIShi-fang(ZhangjiakouAcademyofAgriculturalSciences,Zhangjiakou075000,China)Abstract:Interspecifichybridizationtechnologyisamajorbreakthroughofoilflaxbreedinginourcountry,whichovercomestheincompatibilitybetweencultivatedandwildspecies.Throughcorrelationanal
4、ysisbetweenthemainagronomictraitsandyieldofinterspecifichybrids,theeffectsofmainagronomictraitsonyieldofhybridswasdiscussed.Theresultsshowedthatitwaspositivecorrelationbetweenperunitareayieldandstemsnumber,grainnumberperfruit,plantyieldand1000-grainweight,butthecorrelationdidnotreachsignificantl
5、evel.Thehighestcorrelationcoefficientwas0.795whichbetweentheyieldand1000-grainweight.Itisnegativecorrelationbetweenperunitareayieldandplantheight,longprocess,mainstemnumberandeffectivefruitnumber,andthecorrelationofplantheightreachedsignificantlevel,correlationbetweenprocesslongwastheverysignifi
6、cantlevel.Throughcomprehensiveevaluationthemembershipfunctionsofagronomictraitsofvarieties(strains),thebestcomprehensiveperformancehybridstrainsflaxmaterial1062wasselected.Interspecifichybridizationhaveshorterplantheightandprocesslength,morestems,higher1000-grainweightandyieldcomparedwiththeconv
7、entionalculture(double).Keywords:Flax;Interspecifichybrids;Agronomictraits;Yield;Coefficientofcorrelation;Comprehensiveevaluation[1]胡麻(LinumusitatissimumL.)是我國華北和西利亞,據(jù)《河北植物志》記載在我國河北省張家[2~5]北地區(qū)主要的油料作物,多年生野生宿根型亞麻口地區(qū)也有分布。米君等通過對