4 documents found, page 1 of 1
Effect of rice grain (Oryza sativa L.) enrichment with selenium on foliar leaf ...
Marques, Ana Coelho; Lidon, Fernando C.; Coelho, Ana Rita F.; Pessoa, Cláudia campos; Luís, Inês Carmo; Campos, Paula Scotti; Simões, ManuelaAn agronomic itinerary for Se biofortification of two rice cultivars (Ariete and Ceres) through foliar fertilization with sodium selenate and sodium selenite with different concentrations (25, 50, 75 and 100 g Se.ha1), was implemented in experimental fields. The selenium toxicity threshold was not exceeded, as shown by the eco-physiological data obtained through leaf gas exchanges. The highest Se enrichment in ...
The tolerance of Eucalyptus globulus to soil contamination with arsenic
Reboredo, Fernando Henrique; Pelica, João; Lidon, Fernando C.; Pessoa, Maria F.; Silva, Maria Manuela; Guerra, Mauro; Leitão, Roberta; Ramalho, José C.The contamination of abandoned mining areas is a problem worldwide that needs urgent attention. Phytoremediation emerges as a successful method to extract different contaminants from the soil. In this context, Eucalyptus globulus plants growing in soils artificial contaminated with arsenic (As) were used to access its phytoremediation capabilities. The effects of As on photosynthetic performance were monitored ...
Can foliar pulverization with CaCl2 and Ca(NO3)2 trigger Ca enrichment in Solan...
Coelho, Ana Rita F.; Lidon, Fernando C.; Pessoa, Cláudia Campos; Marques, Ana Coelho; Luís, Inês Carmo; Caleiro, João; Simões, Manuela; Kullberg, JoséThis study aimed to assess the efficiency of Ca enrichment in tubers of three genotypes of Solanum tuberosum L., through foliar spraying with CaCl2 and Ca(NO3)2 solutions. In this context, soil heterogeneity of three potato-growing fields, as well as the implications of Ca accumulation among tissues and some quality parameters were assessed. Three potato varieties (Agria, Picasso and Rossi) were grown in three ...
Elemental composition of algae-based supplements by energy dispersive X-ray flu...
Reboredo, Fernando H.; Junior, Walter; Pessoa, Maria F.; Lidon, Fernando C.; Ramalho, José C.; Leitão, Roberta G.; Silva, Maria Manuela; Alvarenga, NunoThe aim of this study is to evaluate the elemental composition of fifteen algae-based supplements commonly sold in the Portuguese market, by energy dispersive X-ray fluorescence. Despite the fact that the majority of Kelp samples were a good source of iodine, the levels observed might well contribute to an excess in the human body, which can cause dysfunction of the thyroid gland. Furthermore, the presence of l...