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PRODUCTIVISM AND POST-PRODUCTIVISM IN THE OLIVE GROVES OF SOUTHERN SPAIN

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Sánchez Martínez J. D., Almonacid A. G.
Quaestiones Geographicae
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2017
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vol. 36
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issue 2
57-69
EN
This work examines changes in the cultivation of olive groves in the region of Andalusia since the accession of Spain to the European Common Market (1986). The first phase is marked by the triumph of productivism in which some of the basic elements of this model (specialisation and intensification) are overwhelming, according to the statistical sources used for this research, although the behaviour in terms of corporate concentration can be considered unique. Also notable, as we will explain later, are other less desirable effects of the process, which can currently be considered environmentally unsustainable. As the weaknesses and contradictions of the model have become evident, in the recent years – as a result of the new stimuli provided by the Common Agricultural Policy – more attention is paid to the opportunities offered by rural development. For the moment, the results of this approach have been limited, although the 2015–2020 planning period could be decisive for its reorientation.
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Allelopathic activity of the Baltic picocyanobacterium Synechocystis sp.

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Śliwińska-Wilczewska S., Knitter A., Cisło D., Latała A.
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
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2017
EN
Allelopathic compounds produced by picocyanobacteria could affect the growth and development of biological systems. The main aim of this study was to investigate the influence of unknown allelochemicals obtained from picocyanobacterium Synechocystis sp. BA-153 in monocultures and in mixed cultures. In this study, we demonstrated that Synechocystis sp. BA-153 caused allelopathic effects against other strains of picocyanobacteria. It was found that Synechocystis sp. BA-121 was strongly inhibited by Synechocystis sp. BA-153 in both the mixed culture and cell-free filtrates. On the other hand, the addition of live picocyanobacterial culture of Synechocystis sp. BA-153 stimulated the growth of Synechocystis sp. BA-122. These results showed the allelopathic activity of Synechocystis sp. BA-153, which can cause either the inhibition or stimulation of growth of selected picoplanktonic cyanobacteria.
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