Genetic Variation, Heritability and Path Analysis of Summer Rapeseed Cultivars

Journal of Applied Biological Sciences

Engin KINACI¹  Zehra AYTAǹ  Gülcan KINACI¹ 

关键词: summer rapeseed;    yield;    genetic variation;    heritability;    correlation;    path analysis;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Sixspringrapeseedvarietieswerestudiedforvariability,heritability,geneticadvance,correlationandpathanalysisofseedyieldandyieldcomponents.Significantdifferencesdeterminedamonggenotypesformostofthetraitsindicatedthatthereissufficientvariabilityavailabletomakeeffectiveselections.Genotypicandphenotypicvarianceswerehighestforseedyieldperplantfollowedbyseedyield.Broadsenseheritabilityestimatesrangedfrom0.87to0.99.Highheritabilitywithlowgeneticadvanceofplantheightandpodlengthindicatedtheinfluenceofdominantandepistaticeffectsofthesetraits.Highheritabilityofseedyieldperplant,seedyield,podspermainstemcoupledwithhighgeneticadvancerevealedthatadditivegeneeffectsareimportantindeterminingthesecharactersandcouldbeimprovedthroughmassselection.Positiveandsignificantcorrelationofseedyieldwithplantheight,podspermainstem,seedsperpodandseedyieldperplantindicatedforhigherseedyield.Podspermainstem,seedsperpodandplantheightshowedaconsiderabledirectpositiveeffectonseedyieldperplantforalmostallgenotypes.Theseyieldcomponentscanbeusedasselectioncriteriatoimproveseedyieldofsummertyperapeseed.

【 授权许可】

Unknown