Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments
Background and Aims White clover ( Trifolium repens ) is an important component of sustainable livestock systems around the world. Its exploitation for agriculture in the northern, marginal areas is, however, currently limited by the lack of cultivars that combine persistence and high production pot...
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fthighwire:oai:open-archive.highwire.org:annbot:102/5/825 2023-05-15T16:51:27+02:00 Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments Helgadóttir, Áslaug Marum, Petter Dalmannsdóttir, Sigrídur Daugstad, Kristin Kristjánsdóttir, Thórdís Anna Lunnan, Tor 2008-11-01 00:00:00.0 text/html http://aob.oxfordjournals.org/cgi/content/short/102/5/825 https://doi.org/10.1093/aob/mcn159 en eng Oxford University Press http://aob.oxfordjournals.org/cgi/content/short/102/5/825 http://dx.doi.org/10.1093/aob/mcn159 Copyright (C) 2008, Oxford University Press ORIGINAL ARTICLES TEXT 2008 fthighwire https://doi.org/10.1093/aob/mcn159 2015-02-28T20:04:54Z Background and Aims White clover ( Trifolium repens ) is an important component of sustainable livestock systems around the world. Its exploitation for agriculture in the northern, marginal areas is, however, currently limited by the lack of cultivars that combine persistence and high production potential. The aims are to investigate whether it is feasible to create breeding material of white clover for these areas by combining winter hardiness of northerly populations with good yielding ability of more southerly cultivars. Methods A total of 166 crosses of 14 different parental combinations between winter-hardy, low-yielding populations of northern origin and high-yielding commercial cultivars of more southerly origin were tested under field conditions in Iceland and Norway and the parental populations were compared in Norway. Spaced plants were transplanted into a smooth meadow grass ( Poa pratensis ) sward. Dry matter yield was estimated for 2 years after planting in Norway and morphological characters associated with yielding capacity were measured at both sites. Key Results The results showed that southerly cultivars had larger leaves and higher yielding potential than northern types but suffered more winter damage. Significant variation was found between full-sib families within the different parental combinations for all morphological characteristics measured in all three trials. However, it was difficult to detect any consistent morphological patterns between progeny groups across trial sites. No significant correlations were found between leaflet area and survival. Conclusions The present study has confirmed that it should be possible to simultaneously select for good winter survival and larger leaves and, hence, higher yielding ability under marginal conditions. Text Iceland HighWire Press (Stanford University) Norway Annals of Botany 102 5 825 834 |
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English |
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ORIGINAL ARTICLES |
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ORIGINAL ARTICLES Helgadóttir, Áslaug Marum, Petter Dalmannsdóttir, Sigrídur Daugstad, Kristin Kristjánsdóttir, Thórdís Anna Lunnan, Tor Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
topic_facet |
ORIGINAL ARTICLES |
description |
Background and Aims White clover ( Trifolium repens ) is an important component of sustainable livestock systems around the world. Its exploitation for agriculture in the northern, marginal areas is, however, currently limited by the lack of cultivars that combine persistence and high production potential. The aims are to investigate whether it is feasible to create breeding material of white clover for these areas by combining winter hardiness of northerly populations with good yielding ability of more southerly cultivars. Methods A total of 166 crosses of 14 different parental combinations between winter-hardy, low-yielding populations of northern origin and high-yielding commercial cultivars of more southerly origin were tested under field conditions in Iceland and Norway and the parental populations were compared in Norway. Spaced plants were transplanted into a smooth meadow grass ( Poa pratensis ) sward. Dry matter yield was estimated for 2 years after planting in Norway and morphological characters associated with yielding capacity were measured at both sites. Key Results The results showed that southerly cultivars had larger leaves and higher yielding potential than northern types but suffered more winter damage. Significant variation was found between full-sib families within the different parental combinations for all morphological characteristics measured in all three trials. However, it was difficult to detect any consistent morphological patterns between progeny groups across trial sites. No significant correlations were found between leaflet area and survival. Conclusions The present study has confirmed that it should be possible to simultaneously select for good winter survival and larger leaves and, hence, higher yielding ability under marginal conditions. |
format |
Text |
author |
Helgadóttir, Áslaug Marum, Petter Dalmannsdóttir, Sigrídur Daugstad, Kristin Kristjánsdóttir, Thórdís Anna Lunnan, Tor |
author_facet |
Helgadóttir, Áslaug Marum, Petter Dalmannsdóttir, Sigrídur Daugstad, Kristin Kristjánsdóttir, Thórdís Anna Lunnan, Tor |
author_sort |
Helgadóttir, Áslaug |
title |
Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
title_short |
Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
title_full |
Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
title_fullStr |
Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
title_full_unstemmed |
Combining Winter Hardiness and Forage Yield in White Clover (Trifolium repens) Cultivated in Northern Environments |
title_sort |
combining winter hardiness and forage yield in white clover (trifolium repens) cultivated in northern environments |
publisher |
Oxford University Press |
publishDate |
2008 |
url |
http://aob.oxfordjournals.org/cgi/content/short/102/5/825 https://doi.org/10.1093/aob/mcn159 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
http://aob.oxfordjournals.org/cgi/content/short/102/5/825 http://dx.doi.org/10.1093/aob/mcn159 |
op_rights |
Copyright (C) 2008, Oxford University Press |
op_doi |
https://doi.org/10.1093/aob/mcn159 |
container_title |
Annals of Botany |
container_volume |
102 |
container_issue |
5 |
container_start_page |
825 |
op_container_end_page |
834 |
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1766041563683618816 |