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      Determinación de viabilidad, vigor y banco de semillas de retamo espinoso (Ulex europaeus L.) en un Andisol de un ecosistema de Páramo Translated title: Determination of viability, vigor and seed bank of gorse (Ulex europaeus L.) in an Andisol of a Paramo ecosystem

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          Abstract

          RESUMEN El retamo espinoso (Ulex europaeus L.) es una planta introducida invasora de rápido crecimiento y diseminación, con producción de semillas, que permanecen latentes en los primeros 5 cm de profundidad del suelo; esta planta altera espacios ecológicos nativos, áreas de producción agropecuaria y su control y erradicación no es exitosa. Conocer ciertas características de las semillas del retamo facilitará su control. Así, el objetivo de este trabajo, fue determinar el vigor, la viabilidad y el banco de semillas de retamo espinoso, en zonas del páramo de Sumapaz. Para las pruebas, se colectaron semillas en tres sitios: Delicias, Usabá y Laguna. La prueba de vigor, se llevó a cabo mediante conductividad eléctrica y la de viabilidad, por ensayo topográfico de tetrazolio; en cada prueba, se realizó cuatro repeticiones, cada una con 100 semillas; el diseño estadístico fue completamente al azar. Para el banco de semillas, se tomaron muestras de suelo, a profundidades 0-5, 5-10 y 10-20 cm y se dispusieron en bandejas de aluminio. La prueba de vigor mostró que, después de 6 horas de hidratación, la cantidad de iones lixiviados se estabilizó, con un valor de 38,51 µs.cm -1 g-1, a las diez horas, afirmando alto vigor de semillas. La prueba de viabilidad presentó un 98 % y el banco de semillas registró mayor cantidad en el horizonte de 10-20 cm, con 950 semillas.m2, en la Laguna. Este estudio demuestra que las semillas de retamo tienen altos valores de vigor, viabilidad y un abundante banco de semillas distribuidas a diferentes profundidades.

          Translated abstract

          ABSTRACT The gorse (Ulex europaeus L.) is an invasive introduced plant of rapid growth and spread, with seeds production that remain dormant in the first 5 cm of soil depth, this plant alters native ecological spaces, areas of agricultural production, and its control and eradication is not successful. Know certain characteristics of gorse seeds will facilitate its control. Thus, the purpose of this work was to determine the vigor, viability and seed bank of gorse in areas of the Sumapaz paramo. For the tests, seeds were collected in three sites: Delicias, Usabá and Laguna. The vigor test was carried out by means of electrical conductivity and the viability test by tetrazolium topographic assay, in each test four repetitions were carried out, each with 100 seeds, the statistical design was completely random. For the seed bank, soil samples were taken at depths of 0-5, 5-10 and 10-20 cm, and placed in aluminium trays. The vigor test showed that after 6 hours of hydration, the amount of leached ions stabilized with a value of 38.51 µs.cm -1 g-1 at ten hours, confirming high seed vigor. The viability test presented 98 % and the seed bank registered a greater quantity in the 10-20 cm horizon with 950 seeds.m2 in the Laguna. This study shows that gorse seeds have high values of vigor, viability, and an abundant seed bank distributed at different depths.

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          Large-scale disturbances, biological control and the dynamics of gorse populations

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            Composition of soil seed banks in southern California coastal sage scrub and adjacent exotic grassland

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              Characteristics of the soil seed bank of invasive and non-invasive plants in their native and alien distribution range

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                Author and article information

                Journal
                rudca
                Revista U.D.C.A Actualidad & Divulgación Científica
                rev.udcaactual.divulg.cient.
                Universidad de Ciencias Aplicadas y Ambientales (Bogotá, Distrito Capital, Colombia )
                0123-4226
                December 2022
                : 25
                : 2
                : e2076
                Affiliations
                [1] Fusagasugá - Cundinamarca orgnameUniversidad de Cundinamarca Colombia agfajardo@ 123456ucundinamarca.edu.co
                [2] Fusagasugá - Cundinamarca orgnameUniversidad de Cundinamarca Colombia lrfonseca@ 123456ucundinamarca.edu.co
                [3] Fusagasugá - Cundinamarca orgnameUniversidad de Cundinamarca Colombia aigil@ 123456ucundinamarca.edu.co
                [4] Fusagasugá - Cundinamarca orgnameUniversidad de Cundinamarca Colombia julianaamartinez@ 123456ucundinamarca.edu.co
                [5] Fusagasugá - Cundinamarca orgnameUniversidad de Cundinamarca Colombia acelis@ 123456ucundinamarca.edu.co
                Author information
                https://orcid.org/0000-0002-8193-7780
                https://orcid.org/0000-0002-0742-4485
                https://orcid.org/0000-0001-6536-5877
                https://orcid.org/0000-0002-5765-0763
                https://orcid.org/0000-0003-4101-1550
                Article
                S0123-42262022000200026 S0123-4226(22)02500200026
                10.31910/rudca.v25.n2.2022.2076
                534b9293-7378-4385-8b5d-f60d5666c6c6

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 03 September 2021
                : 11 November 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 46, Pages: 0
                Product

                SciELO Colombia

                Categories
                Ciencias naturales

                Viabilidad,Conductividad eléctrica,Banco de semillas,Sibaté,Invasive species,Biodiversity,Seed bank,Electrical conductivity,Viability,Especie invasora

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