Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Spore Dispersal"”.
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DISPERSAL GRADIENTS AND DEPOSITION EFFICIENCY OF VENTURIA INAEQUALIS ASCOSPORES AND THEIR RELATIONSHIP TO LESION DENSITIES (APPLE SCAB DISEASE, SPORE DISPERSAL, TRAPPING)
<p>The airborne dispersal of Venturia inaequalis ascospores and Lycopodium sp spores from a point source was examined in an apple orchard. Twenty-five volumetric spore traps were constructed, and a system developed that governed intervals of trap operation by leaf wetness. The estimated inoculum …
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Modelling atmospheric dispersal of fungal pathogens on continental scales to safeguard global wheat production
… wheat fields, vast amounts of pathogenic fungal spores are produced that can be carried away by wind. For targeted disease surveillance and control it is important to estimate when, where and how many fungal spores are dispersed from infected to susceptible wheat fields. In this study, …
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WOODLAND CARIBOU AS ECOLOGICAL DRIVERS OF FIR WITCHES' BROOM INFECTIONS ON THE SLATE ISLANDS
… in open forests, highlighting the role of local spore dispersal from chickweed to fir. Aspects exposed to prevailing winds had significantly higher infections, suggesting that long-distance spore dispersal from the broom stage may be important at broader scales. Forest composition and proximity …
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Microevolutionary studies in Marasmiellus praeacutus and Collybia subnuda, two litter-decomposing basidiomycetes
… combination of factors which results in limited spore dispersal. The pattern of mating allele distribution among closely adjacent genets suggests that di-mon crossing (the Buller phenomenon) may contribute to the population structure of this species. Collybia subnuda has a mating allele diversity …
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Terrestrialization and evolutionary radiation of basal embryophytes on the Gondwana
… with each other for sunlight collection and spore dispersal. This implies that the rhyniophytoid communities formed rather dense vegetal mats. It is therefore likely that they were structured as a minute canopy: the long proximal axes are analogous to the tree trunk stratum and the branching …
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Exploiting Interfacial Phenomena to Expel Matter from its Substrate
Spontaneous expulsion of various forms and types of matter from their solid substrates has always been an integral part of interfacial physics problems. A thorough understanding of such interactions between a solid surface and different soft materials not only expands our theoretical knowledge, but …