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Modeling Aleppo pine water balance under two Tunisian climate conditions

Submitted by ibtissem taghouti on 7 December 2019
Natural Aleppo Pine forest (Djebel Zaghouen- Zaghouen)

Aleppo pine (Pinus halepensis Mill.) is one of the most drought-tolerant pine species and it is distributed over large drought-prone Mediterranean regions. The determination of the water balance of the soil-crop-climate and its fluctuation is difficult to achieve, due to the spatial variation in site conditions (Schiller and Cohen, 1998). The objectives of this study are to (1) estimate crop water requirements (ETc) and actual evapotranspiration (ETa) of Tunisian Aleppo pine and (2) study the impact of climate change on water balance, using the WEAP-MABIA Module (Yates et al.,...

The Value Chain of Aleppo Pine Seeds and the Value Added of Vegetable Oil Extracted from Seeds

Submitted by ibtissem taghouti on 6 December 2019
Aleppo pine seeds & Vegetable oil extracted from Aleppo pine seeds

Aleppo pine seeds (commonly called Zgougou) derive all their originality and nobility from the fact that they are consumed by Tunisians as part of their cooking habits. Zgougou is considered one of the most interesting NWFP due to socio-economic role and commercial value.  Aleppo pine seed oil can be extracted as for nutrition, or for medicinal and cosmetic uses.

The present work studies the conditions of exploitation of seeds in the forest, the yield of vegetable oil extracted, its physicochemical qualities and the possibilities of valorizing the press cake obtained after...

Intraspecific variability and genetic selection of Aleppo pine

Submitted by ibtissem taghouti on 23 December 2019
Aleppo pine provenance trial in the comparative plantation of Jbel Abderrahmane - Cap Bon

Aleppo pine is one of the dominant forest species in Tunisia, favoured by its great regeneration capacity, plasticity, climatic stress tolerance, and multiple products: wood, edible seeds, vegetable seed oil, essential oils from leaves. For these reasons it has been used massively as for reforestation.

But  the wide geographical distribution of the species might imply variation in adaptive and productive traits. The use of genetic material well adapted to the environment and better performing allows for valorization of the resource and offers a guarantee of success for new...

Ecophysiological study in three sites of natural Aleppo pine forests.

Submitted by ibtissem taghouti on 4 December 2019
Natural Aleppo Pine forest (Djebel Serej- Siliana)

The main response of natural Aleppo pine trees to drought has been studied in three sites on the North-western of Tunisia, in order to assess their capacity to adapt to climate change and overcome the water challenge. This research was based on the evaluation of some physiological traits (xylem conductivity, water potential..), the soil moisture, the water content, and the foliar gas exchange (photosynthesis, transpiration, and stomatal conductance).