Soluções homeopáticas e resposta alelopática de Conyza bonariensis L.

• Autor(a) principal: Rodrigues, Camila Moreira
• Data de Publicação: 2009
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/4511
• topic: Homeopatia; Alelopatia; Plantas medicinais; Altas diluições; Homeopathy; Allelopathy; Medicinal plants; High dilutions; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA

This study aimed to evaluate the effects of homeopathic preparations of Conyza bonariensis in twelve dinamizations of two dilution’s proximate scales, centezimal and decimal. The plant Conyza bonariensis, agronomically considered na invader, mainly of soybean crops, in the south of Brazil. It has resistant biotypes to agrochemicals and it’s allelopathic activity was observed in laboratory experiments. Lettuce seeds of Regina variety, without chemicals, were used in allelopathic tests of germination and growth. The experiment followed a completely randomized design with 4 replicates, distilled water as treatment of control and 7 treatments: 10, 30, 50, 70, 90 and 100% of the aqueous extract of C. bonariensis. The plots were conditioned in BOD in the period of seven days under the conditions prescribed in the Rule Analysis Seeds (RAS). After the trial period, it was found by variance analysis, followed by a regression that high concentrations of aqueous extract of C. bonariensis interfered in germination and seedlings’s growth. The preliminary phytochemical screening of crude compound of C. bonariensis indicated the presence of organic acids and alkaloids. These secondary metabolites may be involved in the allelopathic activity observed in the plant. In order to analyze the presence of the same behavior of the plant, with ultra high dilutions it was obtained to the mother-tincture and the homeopathic preparations of C. bonariensis, according to the Homeopathic Brazilian Pharmacopoeia in the Homeopathy Laboratory of UFV. The experiments studied the effects of homeopathy in the proximate and decimal scales. Lettuce Plants of "Regina" were used as the test-plant, being parts of the plants from seeds treated with the crude extract of C. bonariensis in the pre-germination of 3 hours and part of plants from seeds weren’t treated. Both experiments followed the design in randomized blocks with 28 treatments and 4 replicates. The homeopaths were applied daily, 10 drops/100mL of deionized water in each plot/pot. Data were analyzed through variance analysis and compared averages, using the using the criterion of Scott-Knott, taking up the level of 5% probability. Considering the lettuce plants healthy bodies, it can be inferred that the quantified data characterize the pathogenesis of homeopathic preparations’s dinamizations. Each preparation served according to the principle of similarity.