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The uses of pollen and its implication for Entomology Neotropical Entomology
JONES,GRETCHEN D.; JONES,STANLEY D..
Palynology is the study of pollen grains produced by seed plants (angiosperms and gymnosperms) and spores (pteridophytes, bryophytes, algae and fungi). It represents the land flora and can be use in many different disciplines. Pollen is distinctive, does not easily decay and is a natural marker. Pollen can be used to determine pollination mechanisms, foraging resources, migration routes and source zones of insects and other pollinators. It provides a means for paleoenvironmental analyses of terrestrial rocks and is of interest to geologists. Pollen also aids in the correlation of terrestrial with marine successions and is used to determine environmental and ecological changes. Recently, palynology is used in forensics. This manuscript introduces the ideas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pollen; Entomopalynology; Forensics; Aerobiology.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000300001
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Factors affecting density of airborne Gibberella zeae inoculum Trop. Plant Pathol.
Del Ponte,Emerson M.; Fernandes,José Maurício C.; Pierobom,Carlos R..
Fusarium head blight (FHB) is a disease of increasing concern in the production of wheat (Triticum aestivum). This work studied some of the factors affecting the density of airborne Gibberella zeae inoculum. Spore samplers were placed at the edge of a field in order to observe spore deposition over a period of 45 days and nights in September and October, the period that coincides with wheat flowering. Gibberella zeae colonies were counted for each period and values transformed to relative density. A stepwise regression procedure was used to identify weather variables helpful in predicting spore cloud density. In general, a predominant night-time spore deposition was observed. Precipitation and daily mean relative humidity over 90% were the factors most...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fusarium graminearum; Aerobiology; Spore dispersal; Epidemiology.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000100009
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