2016
DOI: 10.21206/rbas.v6i2.325
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Inclusión Y Acumulación De Na+ en Diferentes Órganos De La Variedad De Trigo Cuba-C-204 Como Respuesta Al Estrés Salino

Abstract: RESUMO -Se determinó la capacidad de inclusión y los sitios de retención de cationes en una variedad de trigo harinero Cuba-C-204, como posible indicador de toxicidad iónica y daño celular después de tratamiento salino, mediante técnicas de espectrofotometría de absorción atómica, fijación y microanálisis en diferentes órganos de la planta. Plantas fueron cultivadas por 35 días en condiciones de hidroponía en solución nutritiva con dos tratamientos (salinizada y control, con 88 mM de NaCl y sin NaCl, respectiv… Show more

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“…In each evaluated organ, the total variability found (CV) was explained, in at least 97% (R 2 ), by the treatment's effects, which shows that with the linear model of fixed effects, used for statistical processing, was feasible to establish the differences between treatments. These significant differences in the biomass production in the different salinity levels in both mycorrhized plants and non-mycorrhized plants could be related to the fact that the plants that were at the 75 mM saline level, did not overcome the possible nutritional interference generated in the absorbent complex of the soil by the Na  and Cl  cations with respect to the essential nutrients required by the plants, or due to ionic toxicity caused by the low selectivity of the membranes or the non-activation of physiological, biochemical and/or molecular mechanisms of tolerances to the salinity conditions (Argentel et al, 2016).…”
Section: Resultsmentioning
confidence: 99%
“…In each evaluated organ, the total variability found (CV) was explained, in at least 97% (R 2 ), by the treatment's effects, which shows that with the linear model of fixed effects, used for statistical processing, was feasible to establish the differences between treatments. These significant differences in the biomass production in the different salinity levels in both mycorrhized plants and non-mycorrhized plants could be related to the fact that the plants that were at the 75 mM saline level, did not overcome the possible nutritional interference generated in the absorbent complex of the soil by the Na  and Cl  cations with respect to the essential nutrients required by the plants, or due to ionic toxicity caused by the low selectivity of the membranes or the non-activation of physiological, biochemical and/or molecular mechanisms of tolerances to the salinity conditions (Argentel et al, 2016).…”
Section: Resultsmentioning
confidence: 99%