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Efectividad de algunos tratamientos pre-germinativos para ocho especies leñosas de la Mixteca Alta oaxaqueña con características relevantes para la restauración

Authors: Gilberto Martínez Pérez; Carlos Martorell; Alma Orozco Segovia;

Efectividad de algunos tratamientos pre-germinativos para ocho especies leñosas de la Mixteca Alta oaxaqueña con características relevantes para la restauración

Abstract

Para restaurar zonas fuertemente degradadas como la Mixteca Alta (Oaxaca, México) es importante usar especies nativas que faciliten la sucesión natural. Para ello necesitamos saber si sus semillas presentan latencia y cómo romperla. En ocho especies apropiadas para la restauración, evaluamos la efectividad de diferentes tratamientos pre-germinativos seleccionados con base en la literatura. Los resultados se analizaron con un nuevo método que resuelve algunos problemas estadísticos frecuentes en el análisis de estos experimentos. Acacia schaffneri, Ipomoea murucoides, Mimosa aculeaticarpa y Dodonaea viscosa presentan latencia física, ya que basta quebrantar la testa mediante abrasión o calentamiento para lograr una germinación rápida. A pesar de pertenecer a familias que sólo presentan latencia fisiológica, las semillas de Arctostaphylos pungens y Juniperus flaccida germinan sumergiéndolas en ácido, lo que quizá facilitó al embrión inmaduro la ruptura de la testa. Encontramos latencia fisiológica somera en Quercus deserticola y aparente ausencia de latencia en Quercus castanea.

Keywords

análisis estadístico, reforestación, especies nativas, Biología, QK1-989, Botany, germinación, latencia

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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!
7
Average
Average
Average
Green
gold