Breeding potential of introgressions into upland cotton: genetic effects and heterosis
With 5 tables As new technology in the textile industry demands higher quality fibres, improving cotton fibre quality has become increasingly important. Twelve cotton lines selected from different breeding programmes with diverse fibre characteristics were used for this study. These lines and their...
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Published in | Plant breeding Vol. 129; no. 5; pp. 526 - 532 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Oxford, UK : Blackwell Publishing Ltd
01.10.2010
Blackwell Publishing Ltd Blackwell |
Subjects | |
Online Access | Get full text |
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Summary: | With 5 tables As new technology in the textile industry demands higher quality fibres, improving cotton fibre quality has become increasingly important. Twelve cotton lines selected from different breeding programmes with diverse fibre characteristics were used for this study. These lines and their F₂ hybrids were grown at the Mississippi State University research farm in three environments. Agronomic and fibre traits were measured and analysed by the additive-dominance genetic model. Significant additive effects were detected for all traits except seed cotton yield and fibre elongation. Dominance effects were significant for all traits. All MD lines and CS-B16 showed positive additive effects for lint percentage (LP), indicating that these lines can be used as general combiners to improve LP. MD90ne was a good general combiner for cotton yield. MD51ne, MD52ne, MD90ne and three derived day-neutral lines were associated with increased additive effects for fibre strength. Some F₂ hybrids with positive middle-parent heterosis for both yield and fibre quality were identified. This study revealed that these genetic lines can be used for inbred line and/or hybrid development. |
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Bibliography: | http://dx.doi.org/10.1111/j.1439-0523.2009.01715.x http://hdl.handle.net/10113/48186 ArticleID:PBR1715 istex:2AC27797E7622D4D8AD5E3844DA9D9ADBAF5A8AF ark:/67375/WNG-PT1JXR05-G ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0179-9541 1439-0523 |
DOI: | 10.1111/j.1439-0523.2009.01715.x |