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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/eraa520
|2 doi
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|a pubmed25n1057.xml
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|a (DE-627)NLM317275798
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|a (NLM)33159790
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Acevedo-Siaca, Liana G
|e verfasserin
|4 aut
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|a Variation between rice accessions in photosynthetic induction in flag leaves and underlying mechanisms
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 20.05.2021
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|a Date Revised 10.11.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © Society for Experimental Biology 2020.
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|a Several breeding initiatives have sought to improve flag leaf performance as its health and physiology are closely correlated to rice yield. Previous studies have described natural variation of photosynthesis for flag leaves; however, none has examined their performance under the non-steady-state conditions that prevail in crop fields. Photosynthetic induction is the transient response of photosynthesis to a change from low to high light. Rice flag leaf photosynthesis was measured in both steady- and non-steady-state conditions to characterize natural variation. Between the lowest and highest performing accession, there was a 152% difference for average CO2 assimilation during induction (Ā300), a 77% difference for average intrinsic water use efficiency during induction (iWUEavg), and a 185% difference for the speed of induction (IT50), indicating plentiful variation. No significant correlation was found between steady- and non-steady-state photosynthetic traits. Additionally, measures of neither steady-state nor non-steady-state photosynthesis of flag leaves correlated with the same measures of leaves in the vegetative growth stage, with the exception of iWUEavg. Photosynthetic induction was measured at six [CO2], to determine biochemical and diffusive limitations to photosynthesis in vivo. Photosynthetic induction in rice flag leaves was limited primarily by biochemistry
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Atmospheric change
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| 650 |
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|a Rubisco activation
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| 650 |
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|a crop improvement
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| 650 |
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|a flag leaves
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| 650 |
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|a food security
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| 650 |
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|a natural variation
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| 650 |
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|a photosynthetic induction
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| 650 |
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|a rice
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| 650 |
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|a rice breeding
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| 650 |
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|a water use efficiency
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| 650 |
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|a Water
|2 NLM
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| 650 |
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|a 059QF0KO0R
|2 NLM
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| 700 |
1 |
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|a Coe, Robert
|e verfasserin
|4 aut
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| 700 |
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|a Quick, W Paul
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Long, Stephen P
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 4 vom: 24. Feb., Seite 1282-1294
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:72
|g year:2021
|g number:4
|g day:24
|g month:02
|g pages:1282-1294
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|u http://dx.doi.org/10.1093/jxb/eraa520
|3 Volltext
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