Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe
Wheat cultivars differ in their response to nitrogen (N) fertilizer, both in terms of its uptake and utilization. Characterizing this variation is an important step in improving the N use efficiency (NUE) of future cultivars while maximizing production (yield) potential. In this study, we compared t...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:527e0e0945e94a6f9bdc59b4ac96b8282021-11-18T05:25:30ZVariation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe1664-462X10.3389/fpls.2021.682333https://doaj.org/article/527e0e0945e94a6f9bdc59b4ac96b8282021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.682333/fullhttps://doaj.org/toc/1664-462XWheat cultivars differ in their response to nitrogen (N) fertilizer, both in terms of its uptake and utilization. Characterizing this variation is an important step in improving the N use efficiency (NUE) of future cultivars while maximizing production (yield) potential. In this study, we compared the agronomic performance of 48 diverse wheat cultivars released between 1936 and 2016 at low and high N input levels in field conditions to assess the relationship between NUE and its components. Agronomic trait values were significantly lower in the low N treatment, and the cultivars tested showed a significant variation for all traits (apart from the N remobilization efficiency), indicating that response is genotype-dependent, although significant genotype × environment effects were also observed. Overall, we show a varietal improvement in NUE over time of 0.33 and 0.30% year–1 at low and high N, respectively, and propose that this is driven predominantly by varietal selection for increased yield. More complete understanding of the components of these improvements will inform future targeted breeding and selection strategies to support a reduction in fertilizer use while maintaining productivity.Marko IvićSonja GrljušićIvana PlavšinIvana PlavšinKrešimir DvojkovićAna LovrićBruno RajkovićBruno RajkovićMarko MaričevićMarko ČerneMarko ČerneBrigita PopovićZdenko LončarićAlison R. BentleyStéphanie M. SwarbreckHrvoje ŠarčevićHrvoje ŠarčevićDario NovoselovićDario NovoselovićFrontiers Media S.A.articleTriticum aestivumwheat breedingnitrogen use efficiencygenetic variances and correlationsheritabilityindirect selectionPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021) |
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DOAJ |
| collection |
DOAJ |
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EN |
| topic |
Triticum aestivum wheat breeding nitrogen use efficiency genetic variances and correlations heritability indirect selection Plant culture SB1-1110 |
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Triticum aestivum wheat breeding nitrogen use efficiency genetic variances and correlations heritability indirect selection Plant culture SB1-1110 Marko Ivić Sonja Grljušić Ivana Plavšin Ivana Plavšin Krešimir Dvojković Ana Lovrić Bruno Rajković Bruno Rajković Marko Maričević Marko Černe Marko Černe Brigita Popović Zdenko Lončarić Alison R. Bentley Stéphanie M. Swarbreck Hrvoje Šarčević Hrvoje Šarčević Dario Novoselović Dario Novoselović Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| description |
Wheat cultivars differ in their response to nitrogen (N) fertilizer, both in terms of its uptake and utilization. Characterizing this variation is an important step in improving the N use efficiency (NUE) of future cultivars while maximizing production (yield) potential. In this study, we compared the agronomic performance of 48 diverse wheat cultivars released between 1936 and 2016 at low and high N input levels in field conditions to assess the relationship between NUE and its components. Agronomic trait values were significantly lower in the low N treatment, and the cultivars tested showed a significant variation for all traits (apart from the N remobilization efficiency), indicating that response is genotype-dependent, although significant genotype × environment effects were also observed. Overall, we show a varietal improvement in NUE over time of 0.33 and 0.30% year–1 at low and high N, respectively, and propose that this is driven predominantly by varietal selection for increased yield. More complete understanding of the components of these improvements will inform future targeted breeding and selection strategies to support a reduction in fertilizer use while maintaining productivity. |
| format |
article |
| author |
Marko Ivić Sonja Grljušić Ivana Plavšin Ivana Plavšin Krešimir Dvojković Ana Lovrić Bruno Rajković Bruno Rajković Marko Maričević Marko Černe Marko Černe Brigita Popović Zdenko Lončarić Alison R. Bentley Stéphanie M. Swarbreck Hrvoje Šarčević Hrvoje Šarčević Dario Novoselović Dario Novoselović |
| author_facet |
Marko Ivić Sonja Grljušić Ivana Plavšin Ivana Plavšin Krešimir Dvojković Ana Lovrić Bruno Rajković Bruno Rajković Marko Maričević Marko Černe Marko Černe Brigita Popović Zdenko Lončarić Alison R. Bentley Stéphanie M. Swarbreck Hrvoje Šarčević Hrvoje Šarčević Dario Novoselović Dario Novoselović |
| author_sort |
Marko Ivić |
| title |
Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| title_short |
Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| title_full |
Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| title_fullStr |
Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| title_full_unstemmed |
Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe |
| title_sort |
variation for nitrogen use efficiency traits in wheat under contrasting nitrogen treatments in south-eastern europe |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/527e0e0945e94a6f9bdc59b4ac96b828 |
| work_keys_str_mv |
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