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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/82250
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Bathula Srikanth, Desiraju Subrahmanyam, Durbha Sanjeeva Rao, Sadu Narender Reddy, Kallakuri Supriya, Puskur Raghuveer Rao, Kuchi Surekha, Raman Meenakshi Sundaram, Chirravuri Naga Neeraja | en_US |
dc.date.accessioned | 2024-04-20T12:33:19Z | - |
dc.date.available | 2024-04-20T12:33:19Z | - |
dc.date.issued | 2023-11-20 | - |
dc.identifier.citation | SrikanthB,SubrahmanyamD, SanjeevaRaoD,NarenderReddyS, SupriyaK,RaghuveerRaoP,SurekhaK, SundaramRMandNeerajaCN(2023) Promisingphysiological traitsassociated withnitrogenuseefficiencyinrice underreducedNapplication. Front.PlantSci.14:1268739. doi:10.3389/fpls.2023.1268739 | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/82250 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Highergrainyieldinhigh-yieldingricevarietiesismostlydrivenbynitrogen(N) fertilizerappliedinabundantamountsleadingtoincreasedproductioncostand environmentalpollution.Thishasfueledthestudiesonnitrogenuseefficiency (NUE)todecreasetheNfertilizerapplicationinricetothepossibleextent.NUEis a complexphysiological trait controlledbymultiplegenes, but yet tobe completelydeciphered inrice.Withanobjectiveof identifyingthepromising physiological traits associatedwithNUE in rice, theperformanceof 14 rice genotypeswasassessedatN0,N50,N100,andN150forfour(twowetandtwo dry) seasons using agro-morphological, grain yield, flag leaf traits, photosyntheticpigmentcontent,flagleafgasexchangetraits,andchlorophyll fluorescence traits. Furthermore, thedatawereused toderivevariousNUE indicestoidentifythemostappropriateindicesusefultoscreenricegenotypesat N50.Results indicatethatwiththeincreaseinNapplication,cumulativegrain yieldincreasedsignificantlyuptoN100(5.02tha−1);however, theincrement in grainyieldwasmarginalatN150(5.09tha−1).Themeanreductionofgrainyield wasonly26.66%atN50rangingfrom15.0%to34.2%.Thesignificantfindingof thestudyistheidentificationofflagleafchlorophyllfluorescencetraits(Fv/Fm, FPSII,ETR,andqP)andCiassociatedwithgrainyieldunderN50,whichcanbe usedtoscreenNuseefficientgenotypes inriceunder reducedNapplication. Out of nineNUE indices assessed, NUpE, NUtE, andNUEyieldwereable to delineatethehigh-yieldinggenotypesatN50andwereuseful toscreenrice underreducedNconditions.Birupaemergedasoneofthehighyieldersunder N50,eventhoughit isamoderateyielderatN100andinfersthepossibilityof cultivatingsomeofthereleasedricevarietiesunderreducedNinputs.Thestudy indicatesthepossibilityoftheexistenceofpromisinggeneticvariabilityforgrain yieldunderreducedN,thepotentialofflagleafchlorophyllfluorescence,andgas exchangetraitsasphysiologicalmarkersandbest suitableNUE indices tobe deployedinricebreedingprograms. | en_US |
dc.language.iso | English | en_US |
dc.publisher | Frontiers | en_US |
dc.subject | maximumquantumyieldofPSII,actualquantumyieldofPSII,electrontransportrate, nitrogenuseefficiency,nitrogen,rice | en_US |
dc.title | Promising physiological traits associated with nitrogen use efficiency in rice under reduced N application | en_US |
dc.type | Article | en_US |
dc.publication.projectcode | UKRI-GCRF SouthAsian NitrogenHub (SANH) (NE/S009019/1) | en_US |
dc.publication.journalname | Frontiers in Plant Science | en_US |
dc.publication.volumeno | 14 | en_US |
dc.publication.pagenumber | 1-28 | en_US |
dc.publication.sourceUrl | 10.3389/fpls.2023.1268739 | en_US |
dc.publication.authorAffiliation | ICAR::Indian Institute of Rice Research | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 12 | en_US |
Appears in Collections: | CS-IIRR-Publication |
Files in This Item:
File | Description | Size | Format | |
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fpls-14-1268739.pdf | 3.23 MB | Adobe PDF | View/Open |
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