<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div class="Apple-Mail-URLShareUserContentTopClass"><br></div><div class="Apple-Mail-URLShareWrapperClass" style="position: relative !important;"><blockquote type="cite" style="border-left-style: none; color: inherit; padding: inherit; margin: inherit;"><b>
Effect of Homeopathic Preparations on Lettuce, Parasitized or Not by Meloidogyne enterolobii <br></b>Thais Moraes Ferreira, Mariana Zandomênico Mangeiro, Alexandre Macedo Almeida, Ricardo Moreira Souza<br><br>Background There are relatively few scientific works on the use of homeopathy to manage plant pathogens, particularly nematodes. A handful of studies focused on Meloidogyne spp. parasitizing vegetables have brought contradictory results on nematode control and enhancement of plant tolerance to parasitism.<br>Objective Our goal was to assess the effect of Cina—a well-known anti-nematode ingredient—on Meloidogyne enterolobii parasitizing lettuce.<br>Methods Cina was applied daily on nematode-inoculated plants, from the seedling stage until harvest. We tested an evenly spaced range of Hahnemannian concentrations (c), which were applied though irrigation with a constant dose of the ingredient. Several absolute and relative controls were employed to allow the assessment of the effect of Cina on nematode reproduction and lettuce growth.<br>Results Cina affected growth of non-parasitized plants, both positively and negatively; this effect was modulated by the c applied and the thermal stress suffered by the plants in one of the assays. The effect of Cina on the growth of nematode-parasitized plants was neutral or negative. Cina reduced nematode reproduction by 25–36%.<br>Conclusion Based on the moderate negative effect of Cina on M. enterolobii reproduction, it seems this ingredient may be useful as a complementary strategy for Meloidogyne control. But Cina did not enhance the tolerance of lettuce to Meloidogyne spp.<br><br>Disponibile il full-text su richiesta
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