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      Efecto de dos tasas de riego y apoyo de sombra sobre la tasa de supervivencia y crecimiento de un arbusto nativo En Peligro de la Región de Coquimbo Translated title: Effects of two irrigation rates and shade on survival and plant growth in an endangered native shrub of Coquimbo Region

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          Abstract

          RESUMEN El objetivo de este trabajo fue evaluar el efecto de dos tasas de riego y apoyo de sombra sobre la tasa de supervivencia y crecimiento de Myrcianthes coquimbensis, un arbusto en Peligro de Extinción, endémico del secano costero de la Región de Coquimbo. Las evaluaciones se realizaron durante 24 meses. Durante los tres primeros meses, las plantas fueron regadas con 12 o 24 L/mes, después del cual el riego se suspendió hasta el final del ensayo. Los resultados obtenidos mostraron que la aplicación de un riego de 12 L/ mes durante los tres primeros meses aseguró una supervivencia inicial de las plantas cercanas al 100%, independiente de si tenían o no sombra. Desde el momento que el riego fue suspendido (inicio del cuarto mes post-plantación), el efecto de la sombra se hizo importante. Así, mientras las plantas sin sombra redujeron su porcentaje de supervivencia al 20%, con un incremento temporal al 30% debido a lluvias invernales, y un descenso durante el segundo año en torno a 15%, las plantas con sombra mantuvieron valores de supervivencia que bordearon el 50% durante el primer año y en torno al 30% de supervivencia al final del segundo año. Los resultados muestran que cualquier estrategia de forestación que se intente en esta especie nativa debería ir acompañada de un riego de establecimiento mínimo de 12 L/mes y el apoyo de sombra. Este estudio sirve como herramienta de apoyo para conservación in situ de este amenazado arbusto endémico de Chile.

          Translated abstract

          ABSTRACT The aim of this work was to evaluate the effect of two irrigation rates and shade on survival and plant growth parameters of Myrcianthes coquimbensis, an endangered and endemic shrub of the coastal dry area of the Coquimbo Region. Evaluations were performed for 24 months. During the first three months, the plants were watered with 12 or 24 L/month, after which the irrigation was suspended until the end of the study. The results showed that the application of an irrigation of 12 L/month during the first three months ensured an initial survival of plants close to 100%, regardless of whether or not they had shade. During this initial period, the use of shade only allowed to observe significant differences in the growth of new shoots. From the moment the irrigation was suspended (beginning of the fourth month post-afforestation), the effect of the shade became important. Thus, while shade-less plants reduced their survival rate by around 20%, with a temporary increase to 30% after winter rains and drop at about 15% by the second year, shady plants maintained survival values near to 50% during first year and 30% at the end of the study. The results showed that any afforestation strategy attempted in this native shrub should be accompanied by a minimum establishment irrigation rate of 12 L/month andpermanent shadow support. This study is a contribution for the in situ conservation of this valuable and unique shrub of Chile.

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          Most cited references 14

          • Record: found
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          Irradiance and oak seedling survival and growth in a heterogeneous environment

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            Moderate soil compaction: Implications on growth and architecture in seedlings of 17 woody plant species

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              • Record: found
              • Abstract: not found
              • Article: not found

              Plant communities of the fog-free coastal desert of chile: plant strategies in a fluctuating environment.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                idesia
                Idesia (Arica)
                Idesia
                Universidad de Tarapacá. Facultad de Ciencias Agronómicas (Arica, , Chile )
                0718-3429
                December 2017
                : 35
                : 4
                : 57-66
                Affiliations
                La Serena Coquimbo orgnameUniversidad de La Serena orgdiv1Departamento de Biología Chile
                La Serena Coquimbo orgnameUniversidad de La Serena orgdiv1Departamento de Matemáticas Chile
                Article
                S0718-34292017000400057

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

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                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 10
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