| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 106.1 KB | Adobe PDF |
Advisor(s)
Abstract(s)
With the advances of climate change, it is expected harmful consequences to olive tree
(Olea europaea L.). Therefore, it is necessary to develop cost-effective practices to reduce the
vulnerability of olive crops to the adverse impacts of environmental stresses. Rainfed olive trees
were sprayed with zeolites, natural crystalline aluminosilicates, and its effects on photosynthetic
activity, phenolic composition, antioxidant activity, leaf minerais concentrations, plant growth,
yield, and olive oil quality were assessed. Zeolites application enhanced photosynthetic activity,
as well the concentrations of N, Mg, Cu, Zn and Mn in leaves, and changed the secondary
metabolism, with decrease oftotal phenols, ortho-diphenols and total antioxidant activity, signs
of lower oxidative stress. As consequence, zeolites boosted plant growth, crop yield, and size
and weight of fruits. The foliar spray did not significantly affect the oil quality indices free acidity,
peroxide value and Km and K270 coefficients. This study strongly suggests that folial' zeolites
might be an effective strategy to mitigate the adverse environmental conditions.
Description
Keywords
Adaptation measures Climate change Environmental stresses Olive oil quality Olea europaea L. Research Subject Categories::FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING::Soil science
Pedagogical Context
Citation
Martins, Sandra; Gonçalves, Alexandre; Silva, Ermelinda; Brito, Cátia; Pinto, Luís; Arrobas, Margarida; Rodrigues, M.A.; Nunes, Fernando M.; Correia, Carlos M. (2021). Clinoptilolite zeolite foliar application on rainfed olive trees: effects on physiology, biochemistry, growth, yield and olive oil quality. In Ana Cristina Ramos; José Alberto Pereira; Nuno Rodrigues (Eds.) 9º Simpósio Nacional de Olivicultura: livro de resumos. Oeiras
Publisher
Associação Portuguesa de Horticultura