Invasiveness of cutleaf ground cherry (Physalis angulata L.) populations and impacts of water and nutrient availability of soil water and nutrient availability.

Las invasiones biologicas son una amenaza importante para los ecosistemas naturales y agroecosistemas, mientras que, globalmente, la flora de malezas parece cambiar notablemente. En este estudio se evaluo el potencial de una especie nativa de America, tomatillos de Brihuega (Physalis angulata L.), para invadir las regiones semiaridas de Grecia. Se realizaron experimentos de invernadero y laboratorio para evaluar los efectos de diferentes recursos ambientales (disponibilidad de nutrientes y agua), crecimiento de las plantulas, produccion de biomasa, fecundidad y germinacion de las semillas de cuatro poblaciones de tomatillos de Brihuega. Nuestros resultados sugieren que P. angulata no tolera una extrema sequia durante las primeras etapas de crecimiento, pero puede sobrevivir y sus semillas germinar adecuada y rapidamente (> 85%) incluso en condiciones de baja humedad del suelo. Ademas, con alta humedad y disponibilidad de nutrientes genera un alto crecimiento y produccion de biomasa y asegura una alta produccion de semillas, llegando a mas de 4000 semillas por planta. Sugerimos que la alta humedad del suelo y en segundo lugar la disponibilidad de nutrientes son los factores criticos que afectan el potencial invasor de P. angulata en ambientes semiaridos. Comprender las caracteristicas ecologicas de las plantas mediante un estudio realizado en una fase de invasion temprana en lugar de tardia, permitira adoptar medidas de control apropiadas para esta especie, las cuales deben dirigirse primeramente a campos fertilizados con frecuencia despues de eventos de precipitacion.

• Publication year

  2012

• Venue

  Chilean Journal of Agricultural Research

• Publication date

  2012-12-18

• Fields of study

  Not labeled

• Identifiers
  DOI 10.4067/S0718-58392012000300009
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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