The chill hour requirements of female and male trees of Pistacia atlantica,
Pistacia palaestina and Pistacia khinjuk have been examined. This was carried
out through putting the studied cuttings in cool chamber for different perriods
of temperatur
es of 2 °C (550, 650, 750, 850, 950, and 1050 hours). The cuttings,
later on, were moved into growth chamber which offers temperature, moisture
and light similar to that available at the time of flowering season naturally.
Chemical composition of the essential oil extracted by hydrodistillation (Clevenger
apparatus) from some aerial parts (ripe and unripe fruit) of Pistacia Atlantica
(Anacardiaceae) which are widely spread throughout the countries of the Mediterranea
n
Sea and have been occupying a good part of the mount of Syria was determined by Gas
Chromatography-Mass Spectrometer GC/MS.
The results of analyzing showed that the oil consist of five compounds in ripe and
unripe fruit, and it was found that the component with the highest ratio in both samples is
the same 2-methylbutanal and its ratio 95.713% in the ripe fruit and 94.138% in the unripe
fruit.
The results of this study also show that the essential oil components of the Syrian
Pistacia fruits are completely different from those in different environments due to the
different types of pistacia species which have been studied and the different environmental
conditions in which this plant grows.
