Mostrar el registro sencillo del ítem

resumen

Resumen
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 [ver mas...]
dc.contributor.authorDivito, Guillermo Adrián
dc.contributor.authorEcheverria, Hernan Eduardo
dc.contributor.authorAndrade, Fernando Hector
dc.contributor.authorSadras, Victor Oscar
dc.date.accessioned2019-04-30T16:06:19Z
dc.date.available2019-04-30T16:06:19Z
dc.date.issued2016-11
dc.identifier.issn0378-4290
dc.identifier.issn1872-6852
dc.identifier.otherhttps://doi.org/10.1016/j.fcr.2016.08.018
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0378429016302787
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5017
dc.description.abstractInformation 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.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceField Crops Research 198 : 140-147 (November 2016)es_AR
dc.subjectSojaes_AR
dc.subjectSoybeanseng
dc.subjectCrecimientoes_AR
dc.subjectGrowtheng
dc.subjectNitrógenoes_AR
dc.subjectNitrogeneng
dc.subjectAzufrees_AR
dc.subjectSulphureng
dc.titleN and S concentration and stoichiometry in soybean during vegetative growth: Dynamics of indices for diagnosing the S statuses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Balcarcees_AR
dc.description.filFil: Divito, Guillermo Adrián. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: 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; Argentinaes_AR
dc.description.filFil: 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; Argentinaes_AR
dc.description.filFil: Sadras, Victor Oscar. South Australian Research & Development Institute; Australiaes_AR
dc.subtypecientifico


Ficheros en el ítem

Thumbnail

Este ítem aparece en la(s) siguiente(s) colección(ones)

common

Mostrar el registro sencillo del ítem