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Mid-Season Leaf Glutamine Predicts End-Season Maize Grain Yield and Nitrogen Content in Response to Nitrogen Fertilization under Field Conditions.pdf 2,10MB
WeightNameValue
1000 Titel
  • Mid-Season Leaf Glutamine Predicts End-Season Maize Grain Yield and Nitrogen Content in Response to Nitrogen Fertilization under Field Conditions
1000 Autor/in
  1. Goron, Travis |
  2. Nederend, Jacob |
  3. Stewart, Greg |
  4. Deen, Bill |
  5. Raizada, Manish |
1000 Erscheinungsjahr 2017
1000 Art der Datei
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-06-10
1000 Erschienen in
1000 Quellenangabe
  • 7(2):41
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • http://dx.doi.org/10.3390/agronomy7020041 |
1000 Ergänzendes Material
  • http://www.mdpi.com/2073-4395/7/2/41#supplementary |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • After uptake in cereal crops, nitrogen (N) is rapidly assimilated into glutamine (Gln) and other amino acids for transport to sinks. Therefore Gln has potential as an improved indicator of soil N availability compared to plant N demand. Gln has primarily been assayed to understand basic plant physiology, rather than to measure plant/soil-N under field conditions. It was hypothesized that leaf Gln at early-to-mid season could report the N application rate and predict end-season grain yield in field-grown maize. A three-year maize field experiment was conducted with N application rates ranging from 30 to 218 kg ha−1. Relative leaf Gln was assayed from leaf disk tissue using a whole-cell biosensor for Gln (GlnLux) at the V3-V14 growth stages. SPAD (Soil Plant Analysis Development) and NDVI (Normalized Difference Vegetation Index) measurements were also performed. When sampled at V6 or later, GlnLux glutamine output consistently correlated with the N application rate, end-season yield, and grain N content. Yield correlation outperformed GreenSeekerTM NDVI, and was equivalent to SPAD chlorophyll, indicating the potential for yield prediction. Additionally, depleting soil N via overplanting increased GlnLux resolution to the earlier V5 stage. The results of the study are discussed in the context of luxury N consumption, leaf N remobilization, senescence, and grain fill. The potential and challenges of leaf Gln and GlnLux for the study of crop N physiology, and future N management are also discussed.
1000 Sacherschließung
lokal precision agriculture
lokal biosensor
lokal nitrogen use efficiency
lokal nitrogen
lokal finger millet
lokal yield prediction
lokal glutamine
lokal plant density
lokal maize
lokal fertilizer
1000 Fachgruppe
  1. Agrarwissenschaften |
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://frl.publisso.de/adhoc/creator/R29yb24sIFRyYXZpcw==|https://frl.publisso.de/adhoc/creator/TmVkZXJlbmQsIEphY29i|https://frl.publisso.de/adhoc/creator/U3Rld2FydCwgR3JlZw==|https://frl.publisso.de/adhoc/creator/RGVlbiwgQmlsbA==|https://frl.publisso.de/adhoc/creator/UmFpemFkYSwgTWFuaXNo
1000 (Academic) Editor
1000 Label
1000 Förderer
  1. University of Guelph
  2. Government of Ontario
  3. Government of Canada
  4. OMAFRA
  5. Grain Farmers of Ontario
  6. Natural Sciences and Engineering Research Council of Canada (NSERC)
  7. International Plant Nutrition Institute (IPNI)
1000 Fördernummer
  1. -
  2. -
  3. -
  4. -
  5. -
  6. -
  7. -
1000 Förderprogramm
  1. -
  2. QEII-GSST award
  3. NSERC-PGSD award
  4. HQP scholarship
  5. -
  6. CRD Program
  7. -
1000 Dateien
  1. Mid-Season Leaf Glutamine Predicts End-Season Maize Grain Yield and Nitrogen Content in Response to Nitrogen Fertilization under Field Conditions
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6409245.rdf
1000 Erstellt am 2018-08-14T10:22:36.338+0200
1000 Erstellt von 218
1000 beschreibt frl:6409245
1000 Bearbeitet von 25
1000 Zuletzt bearbeitet Thu Jan 30 19:08:50 CET 2020
1000 Objekt bearb. Tue Aug 14 10:24:17 CEST 2018
1000 Vgl. frl:6409245
1000 Oai Id
  1. oai:frl.publisso.de:frl:6409245 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

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