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Effect of phosphorus nutrition and grain position within maize cob on grain phosphorus accumulation

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierDepartment of Environmental Sciences
dc.contributor.authorNADEEM, Muhammad
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMOLLIER, Alain
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorVIVES, Alain
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPRUD'HOMME, Loïc
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorNIOLLET, Sylvie
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorPELLERIN, Sylvain
dc.date.accessioned2024-04-08T12:02:14Z
dc.date.available2024-04-08T12:02:14Z
dc.date.issued2014
dc.identifier.issn1695-971X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196191
dc.description.abstractEnNutritional status of grains may vary due to external nutrient supply and their position within parent maize cob. Phosphorus (P) is the least mobile nutrient in the soil and therefore newly growing seedlings are largely dependent on the stored grain P contents which are accumulated during the crop maturity period. Objective of this study was to access the effects of different P applications and grain positions on P and dry matter contents in grains. Phosphorus application and grain position has significant (p<0.05) effects on P contents in grains whereas dry weight and P content are highly correlated. Grain weight and P contents decreased linearly from base to apical position possibly due to flow of nutrients from base towards apical position within cob. Significantly higher grain dry weight (0.35±0.01 g) and P contents (962±57 µg P) are recorded in high P application (92.50 kg ha-1) rate on base position whereas minimum grain dry weight (0.14±0.01 g) and P contents (219±11 µg P) were recorded on apical grain position in low P application (5.60 kg ha-1) rate. The results suggest that for better seedling P nutrition especially in soils of low inherent P, maize grains should be selected from base or middle position where maximum dry weight and P contents are concentrated to support the seedlings to reach at growth at which roots are capable of external P uptake.
dc.language.isoen
dc.publisherInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectgrain P
dc.subjectgrain position
dc.subject.enP contents
dc.subject.enP application
dc.title.enEffect of phosphorus nutrition and grain position within maize cob on grain phosphorus accumulation
dc.typeArticle de revue
dc.identifier.doi10.5424/sjar/2014122-4650
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalSpanish Journal of Agricultural Research
bordeaux.page486-491
bordeaux.volume12
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue2
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02636556
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02636556v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Spanish%20Journal%20of%20Agricultural%20Research&rft.date=2014&rft.volume=12&rft.issue=2&rft.spage=486-491&rft.epage=486-491&rft.eissn=1695-971X&rft.issn=1695-971X&rft.au=NADEEM,%20Muhammad&MOLLIER,%20Alain&VIVES,%20Alain&PRUD'HOMME,%20Lo%C3%AFc&NIOLLET,%20Sylvie&rft.genre=article


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