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Ecosistemas
Article . 2021 . Peer-reviewed
Data sources: Crossref
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Ecosistemas
Article
License: CC BY NC
Data sources: UnpayWall
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Drought tolerance of Paspalum notatum subjected to defoliation

Tolerancia a la sequía de Paspalum notatum sometido a defoliación
Authors: Verónica Ruiz; Lester Rocha; Robert Savé;

Drought tolerance of Paspalum notatum subjected to defoliation

Abstract

La sequía asociada al cambio climático y a la variabilidad climática es el principal factor que afecta la productividad y diversidad de los ecosistemas terrestres. El objetivo de este estudio evaluar la tolerancia a la sequía y el crecimiento compensatorio de dos procedencias de Paspalum notatum sometidas a defoliación y déficit hídrico. El experimento se llevó a cabo en condiciones de invernadero, ubicado en la Estación Experimental para el Estudio del Trópico Seco “El Limón”, adscrita a la UNAN Managua. Se realizó un experimento con arreglo factorial de tratamientos con tres repeticiones. Los individuos de dos procedencias de P. notatum fueron sometidos a dos niveles de defoliación y dos niveles de régimen hídrico. Las variables evaluadas fueron producción de materia seca, tasa de crecimiento relativo y potencial hídrico. Los principales resultados muestran las plantas de P. notatum en condiciones sin estrés hídrico presentaron un aumento en su biomasa aérea en un 15 %, la acumulación de biomasa de rizoma de plantas defoliadas fue menor en relación a las plantas no defoliadas, la biomasa de raíces estuvo en dependencia del régimen hídrico, la biomasa acumulada total aumentó en un 20 % en condiciones no defoliadas y las plantas defoliadas de Muy Muy mostraron una sobrecompensación y las plantas defoliadas de Rivas presentaron una compensación parcial. El potencial hídrico en plantas defoliadas no mostró diferenciación, indistintamente del régimen hídrico al que fueron sometidos. La sequía es un factor determinante que modifica la capacidad compensatoria de gramíneas sometidas a defoliación en biomasa aérea y rizomas.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold