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Research Paper | December 1, 2015

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Ecology and phenology of Rhus tripartitum (Ucria) grande species situated in arid area in Tunisia

Refka Zouaoui, Mustapha Ksontini, Ali Ferchichi

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J. Bio. Env. Sci.7(6), 175-184, December 2015

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Abstract

Rhus tripartitum (Ucria) Grande is a spontaneous plant (Anacardiaceae). It has a great ecological value and versatile, but it is endangered. In order to characterize the variability of phenological phases of this taxon, a study of phenology in his natural environment, was carried out in the arid areas of Tunisia: ((Bou Hedma (BH); Matmata (MM); Beni khedache (BKH) and Djerba (DJ)) during two years (from 2010 to 2011). Our results show that the different phases, especially the flowering and fruiting coincide with the dry season. The observation of these shrubs in different phenological states shows a high variation between provenances and between individual. Indeed, the leafing out from BH and DJ are prolonged in time during the two years of observation (2010 and 2011). But in 2011, BKH and MM are earliest compared to others. The flowering is very limited in time (2 months). The fructification of Rhus tripartitum began in december for all provenances and during two years (2010 and 2011). But the provenance of MM is prolonged in time (June 2011) compared to others. These variations between provenances can be explained by the influence of temperature, soil moisture, photoperiod, exposure and soil texture.

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Ecology and phenology of Rhus tripartitum (Ucria) grande species situated in arid area in Tunisia

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