Cargando…
Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin
Improving nitrogen use efficiency (NUE) represents one of the main goals to reduce N input in maximizing crop yield for sustainable agriculture. A NUE key strategy is the exploitation of genetic variation in available germplasm together with the understanding of molecular mechanisms governing this c...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7902889/ https://www.ncbi.nlm.nih.gov/pubmed/33643329 http://dx.doi.org/10.3389/fpls.2020.607226 |
_version_ | 1783654623845810176 |
---|---|
author | Lupini, Antonio Preiti, Giovanni Badagliacca, Giuseppe Abenavoli, Maria Rosa Sunseri, Francesco Monti, Michele Bacchi, Monica |
author_facet | Lupini, Antonio Preiti, Giovanni Badagliacca, Giuseppe Abenavoli, Maria Rosa Sunseri, Francesco Monti, Michele Bacchi, Monica |
author_sort | Lupini, Antonio |
collection | PubMed |
description | Improving nitrogen use efficiency (NUE) represents one of the main goals to reduce N input in maximizing crop yield for sustainable agriculture. A NUE key strategy is the exploitation of genetic variation in available germplasm together with the understanding of molecular mechanisms governing this complex trait. Thus, NUE, its components, nitrogen uptake efficiency (NUpE) and nitrogen utilization efficiency (NUtE), and NUE-related traits heritability were evaluated in ancient (Cappelli, Capeiti, Russello, and Mazzancoio) and modern (Messapia, Tiziana, Svevo, and Normanno) wheat genotypes for tackling nitrogen (N) and/or water limitation in both growth chamber and field experiments. Our results exhibited a reduction of NUE, NUpE, and NUtE under water and combined (nitrogen + water) stress in all the genotypes, as expected. The contribution of genetic variability on phenotypic variation was significant for NUtE, harvest index, post-anthesis nitrogen uptake (PANU), and biomass production traits. Moreover, the stress tolerance indexes, calculated and bi-plotted for N and water stresses, exhibited two distinct clusters for many traits as then confirmed by principal component analysis. Although modern varieties showed higher crop yield and NUE under conventional N and water regimes, ancient varieties exhibited best performances to cope with both stresses, mainly under water limitation. Finally, the usage index, which takes into account total biomass increase, underlined that old genotypes were less affected by both stresses during crop cycle. In particular, these genotypes showed the best performances for NUE and its components under both stresses at stem elongation and milk ripening as shown also by PANU. In addition, at these stages, nitrate and ammonium transporter gene expressions in the root were performed, showing the highest activity in ancient varieties. In conclusion, the identification of NUE traits during a specific crop cycle stage, under both N and water limitation, will help in the breeding of more resilient varieties in Mediterranean sustainable agriculture by reducing N supply. |
format | Online Article Text |
id | pubmed-7902889 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-79028892021-02-25 Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin Lupini, Antonio Preiti, Giovanni Badagliacca, Giuseppe Abenavoli, Maria Rosa Sunseri, Francesco Monti, Michele Bacchi, Monica Front Plant Sci Plant Science Improving nitrogen use efficiency (NUE) represents one of the main goals to reduce N input in maximizing crop yield for sustainable agriculture. A NUE key strategy is the exploitation of genetic variation in available germplasm together with the understanding of molecular mechanisms governing this complex trait. Thus, NUE, its components, nitrogen uptake efficiency (NUpE) and nitrogen utilization efficiency (NUtE), and NUE-related traits heritability were evaluated in ancient (Cappelli, Capeiti, Russello, and Mazzancoio) and modern (Messapia, Tiziana, Svevo, and Normanno) wheat genotypes for tackling nitrogen (N) and/or water limitation in both growth chamber and field experiments. Our results exhibited a reduction of NUE, NUpE, and NUtE under water and combined (nitrogen + water) stress in all the genotypes, as expected. The contribution of genetic variability on phenotypic variation was significant for NUtE, harvest index, post-anthesis nitrogen uptake (PANU), and biomass production traits. Moreover, the stress tolerance indexes, calculated and bi-plotted for N and water stresses, exhibited two distinct clusters for many traits as then confirmed by principal component analysis. Although modern varieties showed higher crop yield and NUE under conventional N and water regimes, ancient varieties exhibited best performances to cope with both stresses, mainly under water limitation. Finally, the usage index, which takes into account total biomass increase, underlined that old genotypes were less affected by both stresses during crop cycle. In particular, these genotypes showed the best performances for NUE and its components under both stresses at stem elongation and milk ripening as shown also by PANU. In addition, at these stages, nitrate and ammonium transporter gene expressions in the root were performed, showing the highest activity in ancient varieties. In conclusion, the identification of NUE traits during a specific crop cycle stage, under both N and water limitation, will help in the breeding of more resilient varieties in Mediterranean sustainable agriculture by reducing N supply. Frontiers Media S.A. 2021-02-10 /pmc/articles/PMC7902889/ /pubmed/33643329 http://dx.doi.org/10.3389/fpls.2020.607226 Text en Copyright © 2021 Lupini, Preiti, Badagliacca, Abenavoli, Sunseri, Monti and Bacchi. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Lupini, Antonio Preiti, Giovanni Badagliacca, Giuseppe Abenavoli, Maria Rosa Sunseri, Francesco Monti, Michele Bacchi, Monica Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title | Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title_full | Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title_fullStr | Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title_full_unstemmed | Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title_short | Nitrogen Use Efficiency in Durum Wheat Under Different Nitrogen and Water Regimes in the Mediterranean Basin |
title_sort | nitrogen use efficiency in durum wheat under different nitrogen and water regimes in the mediterranean basin |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7902889/ https://www.ncbi.nlm.nih.gov/pubmed/33643329 http://dx.doi.org/10.3389/fpls.2020.607226 |
work_keys_str_mv | AT lupiniantonio nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT preitigiovanni nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT badagliaccagiuseppe nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT abenavolimariarosa nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT sunserifrancesco nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT montimichele nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin AT bacchimonica nitrogenuseefficiencyindurumwheatunderdifferentnitrogenandwaterregimesinthemediterraneanbasin |