COMBININGABILITY,GENE ACTION, HETEEROSIS AND SYNCHRONISATION STUDIES IN,SOME TOP RANK FORAGE BAJRA HYBRIDS

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dc.contributor.advisorBALAKRISHNA REDDY, M.
dc.contributor.authorVIJITHA, M.
dc.date.accessioned2018-05-26T09:24:28Z
dc.date.available2018-05-26T09:24:28Z
dc.date.issued1997
dc.description.abstractThefieldand laboratoryinvestigationsrelatingto“CombiningAbility. GeneAction, I’Ieterosis And Synchronisation Studies In Some'I‘op Rank ForageBajraHybrids”wereundertakenduringWOO. The top crosses showed significant variability for green and dry fodder yieid,plantheightandnumberofleaves. . Incombiningabilityanalysis,theeffectsduetogcaofparentsandseaof hybridsweresignificantforgreenanddryfodderyields, plantheight,stemgirth andleaflength. ' Thecombiningabilityvariancesindicatedthepredominanceofnon-additive geneaction. I Highly significant but varying degrees ofheterosis was observed for the characters studied in respect ofheterobeltosisand standard heterosis. In these studies,8l—AXDRSB-l wasfoundtobethebesttopcrosshybridinrespectof meanperformanceaswellastheheterobeltosisandstandardheterosiswithregard togreen fodderand dry fodderyield. Theparentsofthiscrossvi7.., 8l-A and I DRSB-I were found to have highest significant gca effect for these traits. This crosshasalsorecordedhighestandsignificantseaellectfordryfodderyield, The phenotypic coefficient ofvariation were found to be higher than genotypic coefficient of variation for all the eight characters indicating the .predominanceofenvironmentalelTectonthemlnheretabilitystudiesplantheight and number ot‘leaves have recorded a high genetic advance which revealed operationot‘additivegeneactionforthesecharacters. lncharacterassociationstudies,closeassociationol‘dryt'odderyieldwith numberol‘tillersandplantheightwithnumberol‘leaveswereobserved. Synelu‘onisationstudiesrevealedthatthefemaleparentwas floweringlate anditneedsstaggeredsowingsbyfourtotendaysdependingonthedaysto50“A. ‘ floweringofitsrespectivepollinators.Theminimumot‘fourdaysIstaggeredperiod wasnoticedinthecaseol‘8l-AXDRSB-l and8l-AX[)RSB—4. . Thedurationofdormancy rangedbetween two to sevenweeksinthe materialstudied.Amongthechemicaltreatmentsusedforbreakingthedormancy, GA3wasfoundtobesuperior. _ Theacceleratedageingstudiesrevealedthathybridshaveshownalesser deterioration comparedtotheparentallines.en_US
dc.identifier.citationD5292en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810047742
dc.keywordsCOMBININGABILITY,GENE ACTION, HETEEROSIS AND SYNCHRONISATION STUDIES IN,SOME TOP RANK FORAGE BAJRA HYBRIDSen_US
dc.language.isoenen_US
dc.pages75pen_US
dc.publisherProfessor Jayashankar Telangana State Agricultural Universityen_US
dc.subSeed Science and Technologyen_US
dc.subjectnullen_US
dc.themeSeed Science and Technologyen_US
dc.these.typeM.Scen_US
dc.titleCOMBININGABILITY,GENE ACTION, HETEEROSIS AND SYNCHRONISATION STUDIES IN,SOME TOP RANK FORAGE BAJRA HYBRIDSen_US
dc.typeThesisen_US
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