RESPONS EO FBREA DWHEA TVARIETIE ST ODIFFEREN TLEVEL S  O FNITROGE NA TDOYOGENA ,KEMBAT ATEMBAR OZON E

dc.contributor.author	WOGEN ESOLOMO NKABAT O
dc.date.accessioned	2017-07-28T12:24:28Z
dc.date.available	2017-07-28T12:24:28Z
dc.date.issued	2015-02
dc.identifier.uri	http://hdl.handle.net/123456789/673
dc.description.abstract	Soilfertilitydeclineisoneoftheprincipalfactorscontributingtolowproductivityof cropsandfoodinsecurityinEthiopia.AstudywasconductedatDoyogenaWoderawiththe aimtodeterminetheeffectofdifferentnitrogen levelsi.e.0,23,46and69kg/haNonyield andyieldcomponentofthreebreadwheatvarieties.Afactorialapproachinrandomized completeblockdesignwiththreereplicationswasused.Fromthedatacollectedand analyzed,resultsshowedthatthereexistsignificantdifferenceamongthewheatvarietiesin maturityday,plantheight,spikelength,grainsperspike,grainweightperspike,1000grain weight,biologiqalyieldandgrainyield.Digaluwassuperiorwithplantheight,numberof grainsperspikeandgrainweightperspikeandalsoproducinghighergrainyieldand biologicalyieldbutstatisticallyatparwithHidassevariety.Ontheotherhand,Hidasse varietysurpassedothervarietiesby1000-grainweight.Digaluexpressedlatematurity whileHidasseappearedtobeearlymaturingvariety.Exceptthousandseedweight,allother yieldanditscomponentswasincreasedwithincreasingrateofnitrogengenerally.The interactionofwheatvarietiesandNfertilizationsignificantlyaffectedspikelength,grain weightperspike,thousandgrainweight,grainyieldandbiologicalyield.Thecorrelation analysisrevealedthatgrainperspike;grainweightperspike;spikelengthandbiological yieldwerethemostimportantcontributingcharactersinthetotalvariabilityofgrainyield. ThemaximumagronomicefficiencyofvarietieswasrecordedinDigaluwhereasminimumin Danfecultivar.Applicationof46kg/hanitrogenobservedthemaximumagronomicefficiency whiletheminimumagronomicefficiencywasrecordedat69kg/hanitrogenlevel.Grainyield responseindexshowedthatDigalubelongedtonon-efficientbutresponsiveandHidasse xii appearedtobeefficientbutnon-responsivewhileDanfevarietyindicatedneitherefficient norresponsive.	en_US
dc.language.iso	en	en_US
dc.publisher	Arba Minch, Ethiopia	en_US
dc.subject	wheatvarieties,agronomicefficiency,nitrogenuseefficiency,grainyield , responseindex	en_US
dc.title	RESPONS EO FBREA DWHEA TVARIETIE ST ODIFFEREN TLEVEL S O FNITROGE NA TDOYOGENA ,KEMBAT ATEMBAR OZON E	en_US
dc.type	Thesis	en_US