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| Registros recuperados: 85 | |
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| Jezler,Caroline Nery; Mangabeira,Pedro Antônio Oliveira; Almeida,Alex-Alan Furtado de; Jesus,Raildo Mota de; Oliveira,Rosilene Aparecida de; Silva,Delmira da Costa; Costa,Larissa Correa do Bomfim. |
| Contamination of medicinal plants with heavy metals as Pb and Cd can affect the growth and the essential oil production of the plants and represent a risk to those who consume as medicine. This study aimed to evaluate the effects of absorption and localization of Pb and Cd on growth, ultrastructural aspects of leaves and essential oil yield and composition of Mentha arvensis, applied on the soil with increasing concentrations (8, 16, 32, 64 and 128mg kg-1). There was a differential absorption of Pb and Cd by M. arvensis mainly concentrated in the roots. Pb was found in small amounts in the leaves while Cd largely exceeded the safety limit without symptoms of toxicity. The ultrastructural analysis revealed the metal accumulation on vesicles surrounding the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contamination; Heavy metals; Medicinal plant; Menthol. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000300392 |
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| Castro,Nilmar Eduardo Arbex de; Pinto,José Eduardo Brasil Pereira; Cardoso,Maria das Graças; Morais,Augusto Ramalho de; Bertolucci,Suzan Kelly V.; Silva,Fabiano Guimarães da; Delú Filho,Nelson. |
| The objective of this work was to evaluate the yield of calyxes of Hibiscus sabdariffa L, a medicinal plant, at four planting times in Lavras - MG. The treatments were four planting times (October 18th, November 15th, December 18th 2001 and January 15th 2002) and a harvest was proceeded when practically there were no developing calyxes, almost at the end of the plant cycle. The numbers of calyxes per plant, the fresh and dry biomasses of calyxes and quality were taken into account. It follows that planting time influenced yield per plant and the fresh and dry biomasses of calyxes, differing from each other by Tukey test at 5%. In October planting, there was a higher yield (2,522kg/ha) with a yield 5.24 as high relative to the planting of the month of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Organic farming; Calyx; Medicinal plant; Yield; Vinegar plant. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542004000300009 |
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| Silva,Fabiano Guimarães; Pinto,José Eduardo Brasil Pereira; Cardoso,Maria das Graças; Nascimento,Evandro A.; Nelson,David Lee; Sales,Juliana de Fátima; Mol,Daniel José de S.. |
| In this research it was studied the influence of the radiation intensity on growth and on the essential oil yield of Baccharis trimera. The plants growth was studied under four levels of radiation: 100, 60, 50 and 20% during a 259-day long period. Plants were then evaluated for height, number of nodes, branches, stem diameter (at the height of the colon), biomass formation, and content and composition of the oil. The highest level of radiation caused increases in all of the variables evaluated, except for height, which was reduced with increasing radiation. Essential oil content also increased with increasing level of radiation. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Baccharis trimera; Asteraceae; Medicinal plant. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542006000100007 |
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| Registros recuperados: 85 | |
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