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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2015.09.020
|2 doi
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|a pubmed25n0848.xml
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|a (DE-627)NLM254622038
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|a (NLM)26566846
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|a (PII)S0168-9452(15)30077-7
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a Bimpong, Isaac Kofi
|e verfasserin
|4 aut
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| 245 |
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|a Improving salt tolerance of lowland rice cultivar 'Rassi' through marker-aided backcross breeding in West Africa
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|c 2016
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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
|b cr
|2 rdacarrier
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|a Date Completed 01.09.2016
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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 © 2015 Elsevier Ireland Ltd. All rights reserved.
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|a Salt stress affects about 25% of the 4.4 million ha of irrigated and lowland systems for rice cultivation in West Africa (WA). A major quantitative trait locus (QTLs) on chromosome 1 (Saltol) that enhances tolerance to salt stress at the vegetative stage has enabled the use of marker-assisted selection (MAS) to develop salt-tolerant rice cultivar(s) in WA. We used 3 cycles of backcrossing with selection based on DNA markers and field-testing using 'FL478' as tolerant donor and the widely grown 'Rassi' as recurrent parent. In the BC3F2 stage, salt-tolerant lines with over 80% Rassi alleles except in the region around Saltol segment were selected. 429 introgression lines (Saltol-ILs) were identified as tolerant at vegetative stage, of which 116 were field-tested for four seasons at the reproductive stage. Sixteen Saltol-ILs had less yield loss (3-26% relative to control trials), and 8 Saltol-ILs showed high yield potential under stress and non-stress conditions. The 16 Saltol-ILs had been included for further African-wide testing prior to release in 6 WA countries. MAS reduced the time for germplasm improvement from at least 7 to about 4 years. Our objective is to combine different genes/QTLs conferring tolerance to stresses under one genetic background using MAS
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a High grain yield
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|a Introgression lines
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|a Lowland rice
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|a Marker-aided backcross breeding (MABC)
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|a Salt stress
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|a Saltol QTL
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|a Manneh, Baboucarr
|e verfasserin
|4 aut
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|a Sock, Mamadou
|e verfasserin
|4 aut
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| 700 |
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|a Diaw, Faty
|e verfasserin
|4 aut
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| 700 |
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|a Amoah, Nana Kofi Abaka
|e verfasserin
|4 aut
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| 700 |
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|a Ismail, Abdelbagi M
|e verfasserin
|4 aut
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|a Gregorio, Glenn
|e verfasserin
|4 aut
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|a Singh, Rakesh Kumar
|e verfasserin
|4 aut
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| 700 |
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|a Wopereis, Marco
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 242(2016) vom: 13. Jan., Seite 288-299
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnns
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| 773 |
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|g volume:242
|g year:2016
|g day:13
|g month:01
|g pages:288-299
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|u http://dx.doi.org/10.1016/j.plantsci.2015.09.020
|3 Volltext
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|d 242
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|h 288-299
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