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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz568
|2 doi
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|a pubmed25n1015.xml
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|a (NLM)31875911
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Prieto, Paula
|e verfasserin
|4 aut
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| 245 |
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|a Earliness per se×temperature interaction
|b consequences on leaf, spikelet, and floret development in wheat
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|c 2020
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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 14.05.2021
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|a Date Revised 29.07.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Wheat adaptation can be fine-tuned by earliness per se (Eps) genes. Although the effects of Eps genes are often assumed to act independently of the environment, previous studies have shown that they exhibit temperature sensitivity. The number of leaves and phyllochron are considered determinants of flowering time and the numerical components of yield include spikelets per spike and fertile floret number within spikelets. We studied the dynamics of leaf, spikelet, and floret development in near isogenic lines with either late or early alleles of Eps-D1 under seven temperature regimes. Leaf appearance dynamics were modulated by temperature, and Eps alleles had a greater effect on the period from flag leaf to heading than phyllochron. In addition, the effects of the Eps alleles on spikelets per spike were minor, and more related to spikelet plastochron than the duration of the early reproductive phase. However, fertile floret number was affected by the interaction between Eps alleles and temperature. So, at 9 °C, Eps-early alleles had more fertile florets than Eps-late alleles, at intermediate temperatures there was no significant difference, and at 18 °C (the highest temperature) the effect was reversed, with lines carrying the late allele producing more fertile florets. These effects were mediated through changes in floret survival; there were no clear effects on the maximum number of floret primordia
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Earliness per se (Eps)
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| 650 |
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|a Triticum aestivum
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|a floret development
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| 650 |
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|a phyllochron
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|a plastochron
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| 650 |
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|a spikelet number
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|a Ochagavía, Helga
|e verfasserin
|4 aut
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| 700 |
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|a Griffiths, Simon
|e verfasserin
|4 aut
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| 700 |
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|a Slafer, Gustavo A
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 71(2020), 6 vom: 25. März, Seite 1956-1968
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:71
|g year:2020
|g number:6
|g day:25
|g month:03
|g pages:1956-1968
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|u http://dx.doi.org/10.1093/jxb/erz568
|3 Volltext
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