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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2016.09.010
|2 doi
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|a pubmed24n0884.xml
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|a (DE-627)NLM265337615
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|a (NLM)27744227
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|a (PII)S0176-1617(16)30217-6
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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 Lavinsky, Alyne O
|e verfasserin
|4 aut
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|a Silicon improves rice grain yield and photosynthesis specifically when supplied during the reproductive growth stage
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 11.04.2017
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|a Date Revised 18.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier GmbH. All rights reserved.
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|a Silicon (Si) has been recognized as a beneficial element to improve rice (Oryza sativa L.) grain yield. Despite some evidence suggesting that this positive effect is observed when Si is supplied along the reproductive growth stage (from panicle initiation to heading), it remains unclear whether its supplementation during distinct growth phases can differentially impact physiological aspects of rice and its yield and the underlying mechanisms. Here, we investigated the effects of additions/removals of Si at different growth stages and their impacts on rice yield components, photosynthetic performance, and expression of genes (Lsi1, Lsi2 and Lsi6) involved in Si distribution within rice shoots. Positive effects of Si on rice production and photosynthesis were manifested when it was specifically supplied during the reproductive growth stage, as demonstrated by: (1) a high crop yield associated with higher grain number and higher 1000-grain weight, whereas the leaf area and whole-plant biomass remained unchanged; (2) an increased sink strength which, in turn, exerted a feed-forward effect on photosynthesis that was coupled with increases in both stomatal conductance and biochemical capacity to fix CO2; (3) higher Si amounts in the developing panicles (and grain husks) in good agreement with a remarkable up-regulation of Lsi6 (and to a lesser extent Lsi1). We suggest that proper levels of Si in these reproductive structures seem to play an as yet unidentified role culminating with higher grain number and size
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|a Journal Article
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|a Crop yield
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|a Gene expression
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|a Oryza sativa
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|a Photosynthesis
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|a Photosynthetic limitations
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|a Silicon
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|a Silicon
|2 NLM
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|a Z4152N8IUI
|2 NLM
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|a Detmann, Kelly C
|e verfasserin
|4 aut
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|a Reis, Josimar V
|e verfasserin
|4 aut
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|a Ávila, Rodrigo T
|e verfasserin
|4 aut
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| 700 |
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|a Sanglard, Matheus L
|e verfasserin
|4 aut
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| 700 |
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|a Pereira, Lucas F
|e verfasserin
|4 aut
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|a Sanglard, Lílian M V P
|e verfasserin
|4 aut
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|a Rodrigues, Fabrício A
|e verfasserin
|4 aut
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|a Araújo, Wagner L
|e verfasserin
|4 aut
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|a DaMatta, Fábio M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 206(2016) vom: 01. Nov., Seite 125-132
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
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|g volume:206
|g year:2016
|g day:01
|g month:11
|g pages:125-132
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| 856 |
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|u http://dx.doi.org/10.1016/j.jplph.2016.09.010
|3 Volltext
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