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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.05.035
|2 doi
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|a pubmed24n0993.xml
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|a eng
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|a Rotundo, J L
|e verfasserin
|4 aut
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|a Response of maize photosynthesis to high temperature
|b Implications for modeling the impact of global warming
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 06.09.2019
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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 Copyright © 2019 Elsevier Masson SAS. All rights reserved.
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|a Negative impacts of increased temperature on maize yield are anticipated using simulation models. However, some temperature functions are parameterized with partial information. There is limited information on photosynthesis response to high temperature in modern maize hybrids. Improved photosynthesis-temperature functions are key for realistic yield simulations. Our experiment was aimed at building a functional relationship between photosynthesis and air temperature exploring temperature ranges relevant for global warming simulations. Maize hybrids from cold, temperate, and subtropical regions were included in the study to assess genetic adaptation. Results showed a trilinear response to temperature with an optimum of 40 °C. No genetic adaptation was observed among the diverse set of hybrids evaluated. Results contrast with common temperature-limiting functions indicating a decline in carbon assimilation above 30-33 °C. Our results suggest possible overestimations of negative impacts of global warming on maize yield due to the use of inadequate response functions relating carbon assimilation to temperature
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|a Journal Article
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|a Carbon assimilation
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|a Heat stress
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|a RUBISCO
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|a Tang, T
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|a Messina, C D
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 141(2019) vom: 01. Aug., Seite 202-205
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|g year:2019
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|g pages:202-205
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