Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.5/8303
Título: Fatores que afetam o vingamento em oliveira (Olea europaea L.) cv. Tosca: efeito da polinização cruzada e da aplicação de um extrato de algas
Outros títulos: Factors affecting fruit set in olive (Olea europaea L.) cv. Tosca: effect of cross-pollination and application of a seaweed extract
Autor: Soveral, Marta de Agrela Cabral
Orientador: Mota, Mariana Gomes
Palavras-chave: olive tree
pollination
fruit set
pollen viability
biostimulant
Data de Defesa: 2014
Editora: ISA/UL
Citação: Soveral, M.A.C. - Fatores que afetam o vingamento em oliveira (Olea europaea L.) cv. Tosca: efeito da polinização cruzada e da aplicação de um extrato de algas. Lisboa: ISA, 2014, 123 p.
Resumo: Aiming at an improvement of fruit set in olive tree cv. Tosca, a very early flowering variety, a field trial involving artificial cross pollination was carried out in a hedgerow olive orchard nearby Cartaxo, with pollinators 'Negrinha', 'Cordovil', 'Azeiteira' and 'Maçanilha', early flowering cultivars as well (free pollination as control), and with five other pollinators, 'Arbequina', 'Carrasquenha', 'Galega Evora', 'Maçanilha Carrasquenha' and 'Blanqueta', later flowering, on an exploratory basis. The viability and pollen germination ability of each of these varieties, including ‘Tosca’ was subsequently tested in the laboratory. In complement to this trial, the effect of a biostimulant derived from a seaweed extract in fruit set was evaluated in 'Tosca', as well as the evolution of chlorophyll levels. Overall, the fruit set of ‘Tosca’ revealed values above average, between 3% and 5%, showing better results in open-pollination than in artificial cross-pollination. Among the tested pollinators, the one which showed to be the most promising, regarding fruit set, was 'Negrinha', despite having revealed average percentages of pollen germination and viability (45-47%). The application of the biostimulant did not benefit the fruit set of 'Tosca', even though chlorophyll levels were shown higher in the area where the biostimulant was applied
Descrição: Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/8303
Aparece nas colecções:BISA - Dissertações de Mestrado / Master Thesis

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