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| Guerra,Fernando; Trevizam,Anderson Ricardo; Fior,Rafael Carvalho; Muraoka,Takashi. |
| Large areas of land are nowadays contaminated by heavy metals and, it is therefore, important to monitor their levels in soils. Vegetables act as transfer mechanisms of such contaminants from soils to higher levels in the food chain. In this study, we aimed to evaluate the effectiveness of chemical extractants by the L-value method for Cd phytoavailability using the 109Cd radionuclide. In a greenhouse experiment, rocket plants (Eruca sativa L.) were cultivated in pots with samples from Typic Hapludox and Typic Quartzipsamment soils. Cadmium concentrations ranging from 0 to 16 mg kg-1 were added to a 200 mL solution containing 148 kBq 109Cd. The available Cd in the soil was extracted by DTPA, Mehlich-1, Mehlich-3, and a mixture of organic acids (acetic,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Potentially toxic element; L-value; Radioactive tracer; Weathered tropical soils; Soil contamination. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500010 |
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| Silva,Maria Ligia de Souza; Vitti,Godofredo Cesar; Trevizam,Anderson Ricardo. |
| O objetivo deste trabalho foi avaliar a absorção e a capacidade de translocação de metais pesados do solo para os grãos de soja e arroz. O experimento foi realizado em casa de vegetação, em Latossolo Vermelho distroférrico, proveniente de Município de Paulínia, SP. As amostras de solo foram coletadas em sete pontos e organizadas em função da distância de uma fábrica emissora de poluente. O delineamento utilizado foi o inteiramente casualizado, com quatro repetições. Raízes, parte aérea e grãos foram submetidos à digestão por via úmida. A concentração dos metais pesados foi determinada por ICP-OES. Os teores de cádmio e cobre no grão estiveram em níveis adequados para ambas as culturas, enquanto os teores de manganês e zinco apresentaram-se em excesso,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Oriza sativa; Poluição do solo; Toxicidade de metais pesados. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000400011 |
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| Guerra,Fernando; Trevizam,Anderson Ricardo; Muraoka,Takashi; Marcante,Nericlenes Chaves; Canniatti-Brazaca,Solange Guidolin. |
| Ingestion of vegetables containing heavy metals is one of the main ways in which these elements enter the human body. Once entered, heavy metals are deposited in bone and fat tissues, overlapping noble minerals. Slowly released into the body, heavy metals can cause an array of diseases. This study aimed to investigate the concentrations of cadmium, nickel, lead, cobalt and chromium in the most frequently consumed foodstuff in the São Paulo State, Brazil and to compare the heavy metal contents with the permissible limits established by the Brazilian legislation. A value of intake of heavy metals in human diets was also calculated to estimate the risk to human health. Vegetable samples were collected at the São Paulo General Warehousing and Centers Company,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contamination; Food chain; Potentially toxic element; Daily intake; Consumption habit. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100008 |
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| Villanueva,Felipe Carlos Alvarez; Muraoka,Takashi; Trevizam,Anderson Ricardo; Franzini,Vinicius Ide; Rocha,Alexandre Prado. |
| Eucalyptus plantation in Brazil is generally set on low fertility soils, therefore phosphorus (P) fertilization is mandatory and increases the cost of plantation operation. Using species that more efficiently uptake phosphorus from less soluble sources is an interesting option. However, little is known about eucalyptus regarding its ability of using less soluble forms of phosphorus. The use of P by eucalyptus (E. urophylla, E. grandis, and E. urophylla <FONT FACE=Symbol>´</FONT> E. grandis) was studied in greenhouse using a loamy-textured, hipodystrophic Typic Haplustox from the Cerrado region, and 32P isotopic method. The P sources tested were triple superphosphate (TSP), phosphate rock (PR) and the triple superphosphate mixed with PR... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: L value; P sources; Radioisotope. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000100010 |
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| Siueia Júnior,Matías; de Souza Silva,Maria Ligia; Trevizam,Anderson Ricardo; Faquin,Valdemar; da Silva,Deivisson Ferreira. |
| Abstract Nitrogen (N) and sulfur (S) are nutrients that, in addition to influencing plant growth and production, interfere with processes related to postharvest fruit quality. In the present study, N x S interaction was evaluated in the postharvest quality of tomato (Solanum lycopersicum L.). The experiment was conducted in a greenhouse using 5 dm3 capacity vessels containing a 0-20 cm layer of a dystropherric Red Latosol. A 5 x 3 factorial design was used, with combinations of five doses of N (0, 100, 200, 300 and 400 mg dm-3) and three doses of S (0, 60 and 120 mg dm-3) distributed in a completely randomized design, with four repetitions. After harvest, the attributes of fruit quality were evaluated: firmness, pH, soluble solids (SS), titratable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopene; Physicochemical quality; Solanum lycopersicum L; Soluble solids; Titratable acidity; Vitamin C. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122020000200130 |
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