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Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars
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| Zeitschriftentitel: | Journal of Plant Nutrition and Soil Science |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Journal of Plant Nutrition and Soil Science, 183, 2020, 2, S. 192-199 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Zhang, Li Du, Yan-Lei Li, Xiao Gang Zhang, Li Du, Yan-Lei Li, Xiao Gang |
|---|---|
| author |
Zhang, Li Du, Yan-Lei Li, Xiao Gang |
| spellingShingle |
Zhang, Li Du, Yan-Lei Li, Xiao Gang Journal of Plant Nutrition and Soil Science Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars Plant Science Soil Science |
| author_sort |
zhang, li |
| spelling |
Zhang, Li Du, Yan-Lei Li, Xiao Gang 1436-8730 1522-2624 Wiley Plant Science Soil Science http://dx.doi.org/10.1002/jpln.201900353 <jats:title>Abstract</jats:title><jats:p>The availability of nitrogen (N) contained in crop residues for a following crop may vary with cultivar, depending on root traits and the interaction between roots and soil. We used a pot experiment to investigate the effects of six spring wheat (<jats:italic>Triticum aestivum</jats:italic> L.) cultivars (three old varieties introduced before mid last century and three modern varieties) and N fertilization on the ability of wheat to acquire N from maize (<jats:italic>Zea mays</jats:italic> L.) straw added to soil. Wheat was grown in a soil where <jats:sup>15</jats:sup>N‐labeled maize straw had been incorporated with or without N fertilization. Higher grain yield in three modern and one old cultivar was ascribed to preferred allocation of photosynthate to aboveground plant parts and from vegetative organs to grains. Root biomass, root length density and root surface area were all smaller in modern than in old cultivars at both anthesis and maturity. Root mean diameter was generally similar between modern and old cultivars at anthesis but was greater in modern than in old cultivars at maturity. There were cultivar differences in N uptake from incorporated maize straw and the other N sources (soil and fertilizer). However, these differences were not related to variation in the measured root parameters among the six cultivars. At anthesis, total N uptake efficiencies by roots (total N uptake per root weight or root length) were greater in modern than in old cultivars within each fertilization level. At maturity, averaged over fertilization levels, the total N uptake efficiencies by roots were 292−336 mg N g<jats:sup>−1</jats:sup> roots or 3.2−4.0 mg N m<jats:sup>−1</jats:sup> roots for three modern cultivars, in contrast to 132−213 mg N g<jats:sup>−1</jats:sup> roots or 0.93−1.6 mg N m<jats:sup>−1</jats:sup> roots for three old cultivars. Fertilization enhanced the utilization of N from maize straw by all cultivars, but root N uptake efficiencies were less affected. We concluded that modern spring wheat cultivars had higher root N uptake efficiency than old cultivars.</jats:p> Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars Journal of Plant Nutrition and Soil Science |
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10.1002/jpln.201900353 |
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Online |
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Biologie Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft |
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Wiley, 2020 |
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Wiley, 2020 |
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1436-8730 1522-2624 |
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1436-8730 1522-2624 |
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2020 |
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Wiley |
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Journal of Plant Nutrition and Soil Science |
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49 |
| title |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_unstemmed |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_full |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_fullStr |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_full_unstemmed |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_short |
Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_sort |
modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| topic |
Plant Science Soil Science |
| url |
http://dx.doi.org/10.1002/jpln.201900353 |
| publishDate |
2020 |
| physical |
192-199 |
| description |
<jats:title>Abstract</jats:title><jats:p>The availability of nitrogen (N) contained in crop residues for a following crop may vary with cultivar, depending on root traits and the interaction between roots and soil. We used a pot experiment to investigate the effects of six spring wheat (<jats:italic>Triticum aestivum</jats:italic> L.) cultivars (three old varieties introduced before mid last century and three modern varieties) and N fertilization on the ability of wheat to acquire N from maize (<jats:italic>Zea mays</jats:italic> L.) straw added to soil. Wheat was grown in a soil where <jats:sup>15</jats:sup>N‐labeled maize straw had been incorporated with or without N fertilization. Higher grain yield in three modern and one old cultivar was ascribed to preferred allocation of photosynthate to aboveground plant parts and from vegetative organs to grains. Root biomass, root length density and root surface area were all smaller in modern than in old cultivars at both anthesis and maturity. Root mean diameter was generally similar between modern and old cultivars at anthesis but was greater in modern than in old cultivars at maturity. There were cultivar differences in N uptake from incorporated maize straw and the other N sources (soil and fertilizer). However, these differences were not related to variation in the measured root parameters among the six cultivars. At anthesis, total N uptake efficiencies by roots (total N uptake per root weight or root length) were greater in modern than in old cultivars within each fertilization level. At maturity, averaged over fertilization levels, the total N uptake efficiencies by roots were 292−336 mg N g<jats:sup>−1</jats:sup> roots or 3.2−4.0 mg N m<jats:sup>−1</jats:sup> roots for three modern cultivars, in contrast to 132−213 mg N g<jats:sup>−1</jats:sup> roots or 0.93−1.6 mg N m<jats:sup>−1</jats:sup> roots for three old cultivars. Fertilization enhanced the utilization of N from maize straw by all cultivars, but root N uptake efficiencies were less affected. We concluded that modern spring wheat cultivars had higher root N uptake efficiency than old cultivars.</jats:p> |
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| author | Zhang, Li, Du, Yan-Lei, Li, Xiao Gang |
| author_facet | Zhang, Li, Du, Yan-Lei, Li, Xiao Gang, Zhang, Li, Du, Yan-Lei, Li, Xiao Gang |
| author_sort | zhang, li |
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| container_start_page | 192 |
| container_title | Journal of Plant Nutrition and Soil Science |
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| description | <jats:title>Abstract</jats:title><jats:p>The availability of nitrogen (N) contained in crop residues for a following crop may vary with cultivar, depending on root traits and the interaction between roots and soil. We used a pot experiment to investigate the effects of six spring wheat (<jats:italic>Triticum aestivum</jats:italic> L.) cultivars (three old varieties introduced before mid last century and three modern varieties) and N fertilization on the ability of wheat to acquire N from maize (<jats:italic>Zea mays</jats:italic> L.) straw added to soil. Wheat was grown in a soil where <jats:sup>15</jats:sup>N‐labeled maize straw had been incorporated with or without N fertilization. Higher grain yield in three modern and one old cultivar was ascribed to preferred allocation of photosynthate to aboveground plant parts and from vegetative organs to grains. Root biomass, root length density and root surface area were all smaller in modern than in old cultivars at both anthesis and maturity. Root mean diameter was generally similar between modern and old cultivars at anthesis but was greater in modern than in old cultivars at maturity. There were cultivar differences in N uptake from incorporated maize straw and the other N sources (soil and fertilizer). However, these differences were not related to variation in the measured root parameters among the six cultivars. At anthesis, total N uptake efficiencies by roots (total N uptake per root weight or root length) were greater in modern than in old cultivars within each fertilization level. At maturity, averaged over fertilization levels, the total N uptake efficiencies by roots were 292−336 mg N g<jats:sup>−1</jats:sup> roots or 3.2−4.0 mg N m<jats:sup>−1</jats:sup> roots for three modern cultivars, in contrast to 132−213 mg N g<jats:sup>−1</jats:sup> roots or 0.93−1.6 mg N m<jats:sup>−1</jats:sup> roots for three old cultivars. Fertilization enhanced the utilization of N from maize straw by all cultivars, but root N uptake efficiencies were less affected. We concluded that modern spring wheat cultivars had higher root N uptake efficiency than old cultivars.</jats:p> |
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| imprint | Wiley, 2020 |
| imprint_str_mv | Wiley, 2020 |
| institution | DE-Bn3, DE-Brt1, DE-D161, DE-Zi4, DE-Gla1, DE-15, DE-Pl11, DE-Rs1, DE-14, DE-105, DE-Ch1, DE-L229, DE-D275 |
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| series | Journal of Plant Nutrition and Soil Science |
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| spelling | Zhang, Li Du, Yan-Lei Li, Xiao Gang 1436-8730 1522-2624 Wiley Plant Science Soil Science http://dx.doi.org/10.1002/jpln.201900353 <jats:title>Abstract</jats:title><jats:p>The availability of nitrogen (N) contained in crop residues for a following crop may vary with cultivar, depending on root traits and the interaction between roots and soil. We used a pot experiment to investigate the effects of six spring wheat (<jats:italic>Triticum aestivum</jats:italic> L.) cultivars (three old varieties introduced before mid last century and three modern varieties) and N fertilization on the ability of wheat to acquire N from maize (<jats:italic>Zea mays</jats:italic> L.) straw added to soil. Wheat was grown in a soil where <jats:sup>15</jats:sup>N‐labeled maize straw had been incorporated with or without N fertilization. Higher grain yield in three modern and one old cultivar was ascribed to preferred allocation of photosynthate to aboveground plant parts and from vegetative organs to grains. Root biomass, root length density and root surface area were all smaller in modern than in old cultivars at both anthesis and maturity. Root mean diameter was generally similar between modern and old cultivars at anthesis but was greater in modern than in old cultivars at maturity. There were cultivar differences in N uptake from incorporated maize straw and the other N sources (soil and fertilizer). However, these differences were not related to variation in the measured root parameters among the six cultivars. At anthesis, total N uptake efficiencies by roots (total N uptake per root weight or root length) were greater in modern than in old cultivars within each fertilization level. At maturity, averaged over fertilization levels, the total N uptake efficiencies by roots were 292−336 mg N g<jats:sup>−1</jats:sup> roots or 3.2−4.0 mg N m<jats:sup>−1</jats:sup> roots for three modern cultivars, in contrast to 132−213 mg N g<jats:sup>−1</jats:sup> roots or 0.93−1.6 mg N m<jats:sup>−1</jats:sup> roots for three old cultivars. Fertilization enhanced the utilization of N from maize straw by all cultivars, but root N uptake efficiencies were less affected. We concluded that modern spring wheat cultivars had higher root N uptake efficiency than old cultivars.</jats:p> Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars Journal of Plant Nutrition and Soil Science |
| spellingShingle | Zhang, Li, Du, Yan-Lei, Li, Xiao Gang, Journal of Plant Nutrition and Soil Science, Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars, Plant Science, Soil Science |
| title | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_full | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_fullStr | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_full_unstemmed | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_short | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_sort | modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| title_unstemmed | Modern wheat cultivars have greater root nitrogen uptake efficiency than old cultivars |
| topic | Plant Science, Soil Science |
| url | http://dx.doi.org/10.1002/jpln.201900353 |