Controle da pinta preta e efeito sobre variáveis de crescimento em tomateiro por preparados homeopáticos

Abstract

A homeopatia pode ser uma alternativa de controle de doenças de plantas pela ativação de genes vegetais responsáveis pela resistência às doenças. O objetivo deste trabalho foi avaliar a ação dos medicamentos homeopáticos Propolis, Sulphur e Ferrum sulphuricum nas dinamizações 6, 12, 30 e 60CH (escala centesimal hahnemaniana) no controle de Alternaria solani e em variáveis de crescimento. Solução hidroalcóolica 10% e água destilada foram os tratamentos controle. Aos 19 dias após o transplante, a 6 ª folha de cada planta foi tratada e 72 horas após, a 6ª e a 7ª folhas foram inoculadas com A. solani. A severidade da doença foi avaliada e calculada a área abaixo da curva de progresso da doença (AACPD). Foram avaliados volume e massa seca do sistema radicular e massa fresca e seca da parte aérea. Sulphur em 12 e 30CH, Ferrum sulphuricum em 6, 12 e 30CH e Propolis em todas as dinamizações reduziram a AACPD na ordem de 17% a 49%. Sulphur em 60CH e solução hidroalcoólica 10% apresentaram efeito sistêmico na indução de resistência. Nas variáveis de crescimento, Propolis em 30 e 60CH incrementou o volume de raiz em 39% e 33%, a massa fresca da parte aérea em 35% (30CH) e a massa seca da raiz em 38% (30CH). Sulphur em todas as dinamizações aumentou a massa da parte aérea entre 23% a 37%, e em 60CH incrementou em 59% a massa de raízes, o que também ocorreu com Ferrum sulphuricum 60CH (65% de incremento). Esses resultados indicam que os preparados homeopáticos podem controlar a pinta preta e incrementar o crescimento do tomateiro.

Antimicrobial action against of Macrophomina phaseolina and control of the grey stem in soybean by homeopathic remedies Nosode and Sulphur

“…In Figure 3, it can be observed that Nosode of M. phaseolina did not show significance, while Sulphur showed a behavior represented by quadratic equation and provided a reduction of up to 33%, a very important number since the micro-sclerotia are the form of survival of the fungus on the ground, and it contributes to the spread and survival of this for long periods. The reduction of sporulation was also observed with Sulphur in the work conducted by Toledo et al, (2015) where it had 53% of reduction for the boosting 30 CH to 63% for boosting 6 CH. In work done by Toledo et al (2013) seeking to evaluate the inhibition of sporulation of A. solani by Ferrum sulphuricum, it was found that the dynamizations 6,12,18,21,24,27,30,48,66,69,72,75,78,81 and 96 CH decreased sporulation and were statistically different from the controls distilled water and hydroalcoholic solution 70%, having the inhibition of 71.6% in the dynamizations 24 and 78 CH and variation of 88.42% in the dynamizations 21 and 96 CH of spore inhibition.…”

“…In work done by Toledo et al (2013) seeking to evaluate the inhibition of sporulation of A. solani by Ferrum sulphuricum, it was found that the dynamizations 6,12,18,21,24,27,30,48,66,69,72,75,78,81 and 96 CH decreased sporulation and were statistically different from the controls distilled water and hydroalcoholic solution 70%, having the inhibition of 71.6% in the dynamizations 24 and 78 CH and variation of 88.42% in the dynamizations 21 and 96 CH of spore inhibition. Toledo et al (2015) also found little effect of using isopathy, in the case of A. solani both for mycelial growth and also for the number of micro-sclerotia. With regard to the first test, according to Table 2, there was no statistical difference among the treatments and, bearing this in mind, none of the remedies showed themselves efficient to reduce the area under the progress curve for botrytis of the soybean stem in the dynamizations tested.…”

“…Comparing Sulphur with the control there is a reduction of 14 and 15% in the dynamizations 12 and 48CH, respectively. In a work carried out by Toledo et al (2015), it was found that the mycelial growth of Alternaria solani in the presence of Sulphur homeopathic preparation in 100 CH, was inhibited by 16.97% compared to the control. In another work, where Sinha and Singh (1983) observed the toxic effect of Sulphur on Aspergillus parasiticus, had 100% inhibition in mycelial growth using the boosting 200 CH, showing that Sulphur, subject to the boosting and on what the fungus will act, can be as effective as chemicals.…”

Espécies De Borboletas Em Bordas Distintas De Fragmento Da Mata Atlântica Em Bela Vista Do Paraíso-Pr

“…Os dados foram submetidos à análise de variância e teste de Tukey a 5% de significância pelo Programa Estatístico SISVAR (FERREIRA, 2011). (TOLEDO et al, 2015).…”

Chamomile Cultivation Submitted to Ultra-diluted Phosphorus Solutions

“…Dilutions of Carbo vegetabilis (6CH), Silicea land (30CH) and Sulphur (30CH) promoted increase in the fresh and dry mass of broccoli inflorescences (Pulido et al, 2017), as did Phosphorus 30CH applied to seeds of lettuce (Lactuca sativa L.) (Queiroz et al, 2015). Some homeopathic medicines are used in the control of phytopathogenic microorganisms (Trebbi et al, 2016;Shah-Rossi et al, 2009), such as Berberis vulgaris in the control of rust, powdery mildew and downy mildew (Bonato, 2014), and Propolis (6CH, 12CH and 30CH) to minimize the severity of early blight in tomato (Toledo et al, 2015). They are also used to reduce the incidence of insects such as aphids and thrips (Wyss et al, 2010;Gonçalves et al, 2017).…”