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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influencia de la inoculación con morchela (Morchella conica Pers. ex Fr.) en la supervivencia y crecimiento inicial de raulí (Nothofagus alpina (Poepp. et Endl.) Oerst)

Patricio, Chung Guin-Po January 2010 (has links)
Memoria para optar al Título Profesional de Ingeniero Forestal / En Chile, muchos sitios donde se desarrollan especies forestales del bosque nativo han enfrentado intensos procesos de alteración que dificultan su re-establecimiento en las áreas en que tradicionalmente se distribuían. La razón de esto es la pérdida de fertilidad del suelo, la degradación ambiental y la alteración de las poblaciones de microorganismos que conviven en simbiosis con los árboles del bosque. Para sobrellevar el problema de establecimiento de plantaciones con especies nativas, y a la vez obtener productos no madereros de alto valor comercial, se ha desarrollado la opción tecnológica de combinar la producción forestal con la de hongos micorrícicos comestibles. En efecto, existen técnicas de micorrización de plantas mediante la incorporación en vivero de estos hongos simbiontes. Sin embargo aún existen muchas incognitas en torno al comportamiento del material micorrizado en terreno. Consecuentemente, el proyecto FONDEF D01I1168 “Hongos Micorrícicos Comestibles: Una Alternativa para Mejorar la Rentabilidad de las Plantaciones Forestales”, estableció un conjunto de ensayos con especies forestales en vivero, para investigar la influencia en el crecimiento y supervivencia de las plantas en terreno, constituyendo la información y resultados que se presentan y analizan en esta memoria.
2

Phenological shifts in Fungal spore-production : Response of six fungal genera to three decades of changing climate / Fenologiska förändringar i svampars sporproduktion

Karlsson, Kevin January 2024 (has links)
Fungi are integral parts of terrestrial ecosystems. Sporocarps propagate by spreading their spores from fruiting bodies. Their fruiting bodies are looked for both by foragers and conservationists. Potential changes to spore production and the timing of fruit body production could be useful information for both foragers and conservationists. This report uses e-DNA from air filters gathered from Kiruna in northern Sweden to measure shifts in the spore-producing period of the fungal genera Boletus, Morchella, Coprinus, Cantharellus, Hydnellum, and Ramaria, both in terms of amount of spores released and timing of fruit body formation. The start week, peak week of sporulation, estimation of seasonal end, and cumulative sum of spores released for each genus were calculated and then correlated against each other. The relationship between these variables and the climatic variables of temperature and precipitation, both for the current year and previous year were also calculated.    The report found no significant trends in the timing of the start of sporulation, but spore production for both Morchella and Ramaria increased along the timeseries. The report found an overall positive response to increases in precipitation and temperature for the studied genera, with the exception of Boletus, indicating that climate change is unlikely to negatively impact these genera in northern Sweden.

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