Abstract

The identification and the characterisation of some cultivars of pistachio trees of the south of Tunisia were shown to have a remarkable diversity between different cultivars by using molecular markers (ISSR) supported by morphological markers [leaf length, leaf area, fruit length,  terminal leaflet shape, length leaflet and chemical composition (content of vitamins)]. The content of vitamin B1 varied from zero in Kermizi, Meknessy 1, Mumtez, Mateur 2 and Mateur 3 varieties to 1.9 mg/100 g in Lybie rouge. For the vitamin B2 content, the value ranged from 0.1 mg/100 g in Mateur 3 variety to 7 mg/100 g in Lybie rouge. Vitamin B6 content varied from 0. 16 mg/100 g in Mateur 3 variety to 1.643 mg/100 g in Red Aleppo.  Vitamin C vitamin content can reach 9 mg/100 g in Lybie blanc variety.

Key words:  Pistachio tree, chemical composition, vitamins, HPLC.