Toxicity of 2,4-D herbicide on seed germination of Lycopersicon esculentum L.
DOI:
https://doi.org/10.20873/jbb.uft.cemaf.v10n4.francaKeywords:
tomatoes, pesticides, seedling phytotoxicityAbstract
Dichlorophenoxyacetic acid (2.4 - D (C8H6Cl2O3) is a herbicide widely used in the national territory. The World Health Organization (WHO) classifies 2.4-D as low toxic, harmful if ingested or inhaled. Studying the effects of its use in seeds of fruits that are on the table of the Brazilian, contributes in the scope of research and especially agriculture. Tomato seeds (Lycopersicon esculentum) originates from South America, and is grown almost all over the world, has high commercial value and the fruit has gastronomic importance and health benefits generating high consumption. The present work analyzed the effect of herbicide 2,4-D toxicity on the germination of L. esculentum seeds in 7 and 14 days. The experiment followed a completely randomized design, using one control and three concentrations of the herbicide 2.4-D (0.04, 0.08 and 0.12 mg/mL) with four replications. It was used as substrate germitest paper, allocated in gerbox and deposited in germination chamber at the temperature of 25 and 14 days. Data normality (Shapiro-Wilki) was used to choose the appropriate statistical test and better data presentation. The data did not show normality with a p-value lower than 0.05, the Kruskal-Wallis and Dunn posteriori tests were performed. Tomato seeds were completely intolerant to the herbicide. Even at low concentrations, there was no germination, only of the witness. The 2.4 D was fatal for the germination of tomato seeds.
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