N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status
Information regarding the pattern of sulphur (S) accumulation in shoots is scarce for field crops and few comprehensive analysis were performed on N:S stoichiometry. Particularly, the need to study the patterns of uptake, allocation and stoichiometry of S and N in soybean is two-fold. First, the mai...
| Autores principales: | , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Elsevier
2019
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| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0378429016302787 http://hdl.handle.net/20.500.12123/5017 https://doi.org/10.1016/j.fcr.2016.08.018 |
| _version_ | 1855035424191283200 |
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| author | Divito, Guillermo Adrián Echeverria, Hernan Eduardo Andrade, Fernando Hector Sadras, Victor Oscar |
| author_browse | Andrade, Fernando Hector Divito, Guillermo Adrián Echeverria, Hernan Eduardo Sadras, Victor Oscar |
| author_facet | Divito, Guillermo Adrián Echeverria, Hernan Eduardo Andrade, Fernando Hector Sadras, Victor Oscar |
| author_sort | Divito, Guillermo Adrián |
| collection | INTA Digital |
| description | Information regarding the pattern of sulphur (S) accumulation in shoots is scarce for field crops and few comprehensive analysis were performed on N:S stoichiometry. Particularly, the need to study the patterns of uptake, allocation and stoichiometry of S and N in soybean is two-fold. First, the main areas for soybean production in the world have been recently reported as S-deficient. Second, S concentration (%S) and N:S ratios are relevant for diagnosing S deficiency.
The aim of this work was to analyze, in a gradient of S availability, the dynamics of nitrogen concentration (%N), %S and N:S ratio in soybean lamina, stem and shoots during vegetative growth. Experiments were performed at Balcarce, Argentina during two growing seasons. Two soybean cultivars were evaluated: DM2200 (maturity group II) and DM4970 (maturity group IV), sown in optimum dates for the region (mid-November). DM2200 was also sown late (early January). We sampled crops between biomass ≈ 1 Mg ha−1 and R5. Shoots were separated in lamina, stem and petiole, and pod.
The adjusted S dilution curve for S-sufficient treatments was attenuated in soybean (S = 2.8 W−0.11), with no differences among cultivars of maturity groups II and IV, and sowing dates from November to January. For the same treatments, the N:S ratio was stable in shoots during vegetative growth (N:S = 12.2), supporting the use of a unique threshold for diagnosing the S status during this period. Sulphur concentration in stems was more responsive to the availability of S than%S in lamina. In addition, the concentration of N in stem tended to be constant with variation in %S while %N and %S correlated in lamina. This produced a greater response of N:S in stem than in lamina. Thus, the determination of%S and N:S in stem are good candidates as indicators of S status of soybean. |
| format | info:ar-repo/semantics/artículo |
| id | INTA5017 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA50172019-04-30T16:08:09Z N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status Divito, Guillermo Adrián Echeverria, Hernan Eduardo Andrade, Fernando Hector Sadras, Victor Oscar Soja Crecimiento Nitrógeno Azufre Soybeans Growth Nitrogen Sulphur Information regarding the pattern of sulphur (S) accumulation in shoots is scarce for field crops and few comprehensive analysis were performed on N:S stoichiometry. Particularly, the need to study the patterns of uptake, allocation and stoichiometry of S and N in soybean is two-fold. First, the main areas for soybean production in the world have been recently reported as S-deficient. Second, S concentration (%S) and N:S ratios are relevant for diagnosing S deficiency. The aim of this work was to analyze, in a gradient of S availability, the dynamics of nitrogen concentration (%N), %S and N:S ratio in soybean lamina, stem and shoots during vegetative growth. Experiments were performed at Balcarce, Argentina during two growing seasons. Two soybean cultivars were evaluated: DM2200 (maturity group II) and DM4970 (maturity group IV), sown in optimum dates for the region (mid-November). DM2200 was also sown late (early January). We sampled crops between biomass ≈ 1 Mg ha−1 and R5. Shoots were separated in lamina, stem and petiole, and pod. The adjusted S dilution curve for S-sufficient treatments was attenuated in soybean (S = 2.8 W−0.11), with no differences among cultivars of maturity groups II and IV, and sowing dates from November to January. For the same treatments, the N:S ratio was stable in shoots during vegetative growth (N:S = 12.2), supporting the use of a unique threshold for diagnosing the S status during this period. Sulphur concentration in stems was more responsive to the availability of S than%S in lamina. In addition, the concentration of N in stem tended to be constant with variation in %S while %N and %S correlated in lamina. This produced a greater response of N:S in stem than in lamina. Thus, the determination of%S and N:S in stem are good candidates as indicators of S status of soybean. EEA Balcarce Fil: Divito, Guillermo Adrián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Echeverria, Hernan Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce-Unidad Integrada-Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina Fil: Andrade, Fernando Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce-Unidad Integrada-Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina Fil: Sadras, Victor Oscar. South Australian Research & Development Institute; Australia 2019-04-30T16:06:19Z 2019-04-30T16:06:19Z 2016-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0378429016302787 http://hdl.handle.net/20.500.12123/5017 0378-4290 1872-6852 https://doi.org/10.1016/j.fcr.2016.08.018 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Field Crops Research 198 : 140-147 (November 2016) |
| spellingShingle | Soja Crecimiento Nitrógeno Azufre Soybeans Growth Nitrogen Sulphur Divito, Guillermo Adrián Echeverria, Hernan Eduardo Andrade, Fernando Hector Sadras, Victor Oscar N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title | N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title_full | N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title_fullStr | N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title_full_unstemmed | N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title_short | N and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S status |
| title_sort | n and s concentration and stoichiometry in soybean during vegetative growth dynamics of indices for diagnosing the s status |
| topic | Soja Crecimiento Nitrógeno Azufre Soybeans Growth Nitrogen Sulphur |
| url | https://www.sciencedirect.com/science/article/pii/S0378429016302787 http://hdl.handle.net/20.500.12123/5017 https://doi.org/10.1016/j.fcr.2016.08.018 |
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