Managing of a Traditional Olive Orchard by Timesaving Biennial Pruning

Cantini, Claudio; Panicucci, M.

doi:10.17660/actahortic.2002.586.72

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Quantification of the residual biomass obtained from pruning of trees in Mediterranean olive groves

Velázquez‐Martí¹,

Fernández-González²,

Cortés

et al. 2011

Biomass and Bioenergy

108

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Elsevier Calatayud, V.; García Breijo, FJ.; Cervero, J.; Reig Armiñana, J.; Mª JOSÉ SANZ SÁNCHEZ (2011). Physiological,anatomical and biomass partitioning responses to ozone in the Mediterranean endemic plant Lamottea dianae. Ecotoxicology and Environmental Safety. 74(5):a b s t r a c t Ozone effects on the perennial forb Lamottea dianae were studied in an open-top chamber experiment.Ozone was found to induce reductions in CO 2 assimilation and water use efficiency in the leaves of this species. These reductions were mainly related to a decline in the in vivo CO 2 fixation capacity of Rubisco (V c,max ), rather than to stomatal limitations or photoinhibitory damage (F v :F m ). In addition to chloroplast degeneration, other observed effects were callose accumulation, formation of pectinaceous wart-like cell wall exudates and phloem alterations. Moreover, ozone exposure significantly reduced root dry biomass. The possible relevance of these adverse effects for Mediterranean forbs is commented. These results show that endemic plants can be very sensitive to ozone, suggesting that risks associated with this pollutant should be taken into account for conservation purposes.

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