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Studies on Seed Yield and Yield Components of 5 Triticale Lines

5个小黑麦新品系的种子产量及产量构成因素分析



全 文 :!24" !1#
 Vol.24  No.1
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ACTA AGRESTIA SINICA
   2016$  1%
  Jan.  2016
犱狅犻:10.11733/j.issn.10070435.2016.01.036
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犛狋狌犱犻犲狊狅狀犛犲犲犱犢犻犲犾犱犪狀犱犢犻犲犾犱犆狅犿狆狅狀犲狀狋狊狅犳5犜狉犻狋犻犮犪犾犲犔犻狀犲狊
LIDongmei,TIANXinhui,DU Wenhua
(ColegeofPrataculturalScience,GansuAgriculturalUniversity,KeyLaboratoryofGrasslandEcosystem,
MinistryofEducation,Lanzhou,GansuProvince730070,China)
犃犫狊狋狉犪犮狋:Inthispaper,thegrowthperiod,rustresistance,plantheight,seedyieldandyieldcomponents
of5newtriticalelineswereexamined.TheresultsshowedthatthenewtriticalelineP2wasthebesta
mong6genotypes,whichhadthehighestseedyieldandwasresistanttotherust.Among4seedyield
components,grainweightperspikehadthehighestpositiveeffectonseedyield.Therefore,thisparame
tershouldbepaidmuchmoreattentionintriticalebreeding,inthemeantime,coordinationforthe4yield
componentsshouldalsobeconsidered.
犓犲狔狑狅狉犱狊:Triticale;Seedyield;Yieldcomponents
HIJK
:20141020;LMJK:20150402
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Table1 Varianceanalysisofplantheightandseedyieldamongdifferenttriticalegenotypesandyears
<ºç”
Variation
rsPlantheight Gm¤`Seedyield
df ⅢFRÒ6SS ©Ò MS F ⅢFRÒ6SS ©Ò MS F
GF% Genotype 5 1696.92 339.38 13.95 69.06 13.81 11.49
$VYear 1 451.78 451.78 18.57 106.43 106.43 88.53
$V×GFYear×Genotype 5 1256.50 251.3 10.33 27.62 5.53 4.60
BCϯError 24 583.82 24.33 28.85 1.20
c<º Totalvariation 35 3989.02 231.97
  ü: غW…†QR(犘<0.05);غWú…†QR(犘 <0.01)
Note:meanssignificantdifferenceatthe0.05level;meanssignificantdifferenceatthe0.01level
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Fig.1 Plantheightandseedyieldfor
differenttriticalegenotypes
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plantheightatthe0.05level.Differentlowercaseletters
meansignificantdifferenceofseedyieldatthe0.05level.
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Fig.2 Plantheightandseedyieldofdifferenttriticalegenotypesintheyearof2013and2014
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Table2 Pathanalysisofgrainyieldandyieldcomponentsoftriticalegenotypes
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Yieldcomponent

Spikelength
狓1→狔
uvë
Thenumberofspikelet
perspike狓2→狔
v]ë
Thenumberofseeds
perspike狓3→狔
v]•
Grainweight
perspike狓4→狔
狓1 0.3537 -0.0734 -0.4716 0.5429
狓2 0.1144 -0.2268 -0.2305 0.2439
狓3 0.2757 -0.0864 -0.6051 0.6900
狓4 0.2378 -0.0685 -0.5171 0.8074
  ü:g&ëÏJœ³f™g˜"#<Â]ë,‘/n%#<Â]ë
Note:Numberswithunderlinemeandirectpathcoefficients,othersmeanindirectpathcoefficients
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otype×environmentinteractioninspringtriticalegrownina
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[J].”()*+,2005,33(6):10931094
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m¤`|p’5uTUV
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[10]x@ª,¹u´,G®.ù»zCæG¤`‰¤`T<Â

[J].»z*+,2006,14(6):059061

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