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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/4168

Title: Insectos polinizadores e seu efeito na produção de pereira Rocha na Região do Oeste
Authors: Reis, Catarina Andreia Flausino
Advisor: Silva, José Carlos Franco Santos
Figueiredo, Elisabete Lacerda
Keywords: pear
Rocha pear
pollinators
bees
artificial nests
Osmia
Issue Date: 2011
Publisher: ISA/UTL
Citation: Reis, Catarina Andreia Flausino - Insectos polinizadores e seu efeito na produção de pereira Rocha na Região do Oeste. Lisboa: ISA, 2011
Abstract: The present work was aimed at studying the effect of insect pollinators in the production of fruits, identifying the major groups of flower visiting insects, determining the frequency of visits to flowers along the day, throughout the flowering period, and studying pollinators’ behavior during flower visiting, in four orchards of ‘Rocha’ pear in the Oeste region, Portugal. The possibility of using artificial nests to enhance the colonization and maintenance of pear pollinator populations within the vicinity of pear orchards was also evaluated. The isolation of branches by net bags, in order to prevent the access of insect to flowers, significantly affected fruit setting, had some effect on fruit shape, did not influence fruit weight, and reduced the number of seeds per fruit. The number of flower visits varied in function of the orchards, the period of the day and the group of insects. Nectar was the resource more frequently collected by insects visiting pear flowers. Five Hymenoptera genera were identified in the orchards: Andrena, Anthophora, Bombus, Ceratina and Eucera. The artificial nests were colonized mainly by Osmia bees.
Description: Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/4168
Appears in Collections:BISA - Dissertações de Mestrado / Master Thesis

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