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Maria Papafotiou and Aekaterini N. Martini

medicinal uses, T. capitatum could be introduced as an ornamental landscape plant, suitable for xeriscaping, particularly for dry, rocky places, in calcareous and gypsum soils ( Romão and Escudero, 2005 ), or for urban green roofs in arid and semiarid

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Georgia Vlachou, Maria Papafotiou, and Konstantinos F. Bertsouklis

genetic diversity, which is desirable when native plants are reintroduced in the landscape, or contribute to the selection of particular genotypes of high medicinal value ( Sarasan et al., 2011 ). Specifically, in this study were investigated 1) the effect

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Brígida Resende Almeida, Suzan Kelly Vilela Bertolucci, Alexandre Alves de Carvalho, Heitor Luiz Heiderich Roza, Felipe Campos Figueiredo, and José Eduardo Brasil Pereira Pinto

. 1A ). The leaf of this medicinal plant is the main organ of commercial interest, and increased dry weight of leaves is desirable. The macronutrients P, Mg, and S did not limit LDW, perhaps because they were sufficiently absorbed from the adaptation

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Nirmal Joshee, Bipul K. Biswas, and Anand K. Yadav

studies ( Lakshmana Rao and Singh, 1991 ). In vitro propagated plants of many important medicinal species were found to be uniform, showing less variation in their content of secondary metabolites than their wild/cultivated counterparts ( Yamada et al

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Elizabeth Herrera, Nicolas Tremblay, and André Gosselin

Transplants of angelica (Angelica archangelica L.), horehound (Marrubium vulgare L.), and thyme (Thymus vulgaris L.) were grown in multicompartment trays with five proportions of compost (0%, 15%, 30%, 45%, 60%) mixed to peatmoss and perlite. Plants were fertilized with different electrical conductivity (EC) levels of the nutrient solution (0, 1, and 2 mmho/cm). Horehound and thyme plants were transplanted in the field to measure the residual effects of treatments on dry matter yields and level of active substances. The three medicinal plants showed increased shoot and root dry weights as well as leaf mineral content (some nutrients) when proportion of compost and EC of nutrient solution were higher. The optimal combinations of compost and fertilization treatments on plants growth varied between species. Residual effects of treatments applied in greenhouse on shoot dry matter weight of horehound and thyme plants were observed until the 9th and 12th week, respectively, after transplantation. Treatments also affected active substance levels in horehound plants in field. Organic fertilization management influenced growth, yield in the field and level of certain active substances of the harvested parts of medicinal plants.

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Erin Smith

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W. Letchamo and A. Gosselin

111 WORKSHOP 17A Organic Production of Herbs and Medicinal Plants

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Rao Mentreddy, Cedric Sims, Usha Devagiri, and Ernst Cebert

Oral Session 19—Herbs, Spices, and Medicinal Plants Moderator: Karen L. Panter 19 July 2005, 4:00–6:00 p.m. Room 101