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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1111/nph.13095
|2 doi
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|a pubmed24n0808.xml
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|e rakwb
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|a eng
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|a Guilbaud, Camille S E
|e verfasserin
|4 aut
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|a Is 'peak N' key to understanding the timing of flowering in annual plants?
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 24.08.2015
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2014 The Authors New Phytologist © 2014 New Phytologist Trust.
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|a Flowering time in annual plants has large fitness consequences and has been the focus of theoretical and empirical study. Previous theory has concluded that flowering time has evolved over evolutionary time to maximize fitness over a particular season length. We introduce a new model where flowering is cued by a growth-rate rule (peak nitrogen (N)). Flowering is therefore sensitive to physiological parameters and to current environmental conditions, including N availability and the presence of competitors. The model predicts that, when overall conditions are suitable for flowering, plants should never flower after 'peak N', the point during development when the whole-plant N uptake rate reaches its maximum. Our model further predicts correlations between flowering time and vegetative growth rates, and that the response to increased N depends heavily on how this extra N is made available. We compare our predictions to observations in the literature. We suggest that annual plants may have evolved to use growth-rate rules as part of the cue for flowering, allowing them to smoothly and optimally adjust their flowering time to a wide range of local conditions. If so, there are widespread implications for the study of the molecular biology behind flowering pathways
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a allocation
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|a annual plants
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|a flowering time
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|a nitrogen limitation
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| 650 |
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|a peak nitrogen (N)
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|a plant growth model
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Dalchau, Neil
|e verfasserin
|4 aut
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|a Purves, Drew W
|e verfasserin
|4 aut
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|a Turnbull, Lindsay A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1979
|g 205(2015), 2 vom: 09. Jan., Seite 918-27
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
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|g volume:205
|g year:2015
|g number:2
|g day:09
|g month:01
|g pages:918-27
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|u http://dx.doi.org/10.1111/nph.13095
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