Efecto de los diferentes derivados pirimidínicos sobre el crecimiento de plántulas y hongos fitopatógenos
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2021-02-02
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[ES]Los productos cúpricos y otros agroquímicos son fundamentales para la lucha frente a este tipo de enfermedades, aunque su utilización desmesurada es de gran preocupación ya que pueden ser muy perjudiciales para el medioambiente. Por esto es importante la búsqueda de nuevas alternativas que sean respetuosas con la naturaleza y viables desde el punto de vista económico.
En el presente trabajo se evaluó la actividad de dieciséis derivados pirimidínicos (3, 4i, 4j, 4k, 4m, 4n, 4r, 4p, 4q, 5, 6i, 6j, 6k, 6m, 12a y cc32) sobre el crecimiento de un hongo fitopatógeno del olivar (Phlyctema vagabunda) y se determinó la toxicidad de todos los principios activos ensayados sobre la germinación con diferentes índices y crecimiento de semillas de Trifolium repens y Helianhus annuus. A partir de los resultados obtenidos se concluye que todos los derivados pirimidínicos expecto 4r, presentaron capacidad inhibitoria del crecimiento fúngico, siendo 3, 5, 12a y cc32 los que obtuvieron la inhibición del 100%. El crecimiento de las plántulas fue más sensible a la toxicidad en derivados pirimidínicos ensayados que la germinación de semillas.
[EN]Cupric products along with agrochemicals are essential in the fight against the above-mentioned diseases, although its excessive use is heavily worrying as they can be truly harmful for the environment. For this reason, the search of new alternatives which are environmentally respectful and plausible from an economic point of view are of great importance. In the current work it was evaluated the activity of sixteen derivative pyrimidinics (3, 4i, 4k, 4m, 4n, 4r, 4p, 4q, 5, 6i, 6k, 6m, 12a y cc32) about the growing of a phytopathogenic fungus of olive groves (Phlyctema vagabunda) and the toxicity of all the active principles tested about the germination with different indexes and growing of the seeds Trifolium repens and Helianhus annuus was established. On the basis of the results obtained in this work, it is concluded that all expect 4r derivative pyrimidinics offered an inhibitory capacity of fungal growth; being 3, 5, 12a y cc32 those which obtained an inhibition of 100%. The growth in seedlings was more sensitive to toxicity in tested derivative pyrimidincs than germination of seeds.
[EN]Cupric products along with agrochemicals are essential in the fight against the above-mentioned diseases, although its excessive use is heavily worrying as they can be truly harmful for the environment. For this reason, the search of new alternatives which are environmentally respectful and plausible from an economic point of view are of great importance. In the current work it was evaluated the activity of sixteen derivative pyrimidinics (3, 4i, 4k, 4m, 4n, 4r, 4p, 4q, 5, 6i, 6k, 6m, 12a y cc32) about the growing of a phytopathogenic fungus of olive groves (Phlyctema vagabunda) and the toxicity of all the active principles tested about the germination with different indexes and growing of the seeds Trifolium repens and Helianhus annuus was established. On the basis of the results obtained in this work, it is concluded that all expect 4r derivative pyrimidinics offered an inhibitory capacity of fungal growth; being 3, 5, 12a y cc32 those which obtained an inhibition of 100%. The growth in seedlings was more sensitive to toxicity in tested derivative pyrimidincs than germination of seeds.