The research was conducted to study the resistance of Nerium plant which are planting on
sides of roads and the cities portals. The research was performed by studying the leaves of
Nerium plant, through studying the length and weigh of the leaf, an
d its area and water
content. In addition to studying the wools and hiatus and chlorophyll concentration, and
compared the results between the polluted region which is the entry of Banias City, and the
control one which is the gardens of Tishreen University.
Results showed non significant reduction in length, weight and area of the leaf in the
polluted region compared with the control one. It attained (16.2 cm, 0.97 g and 26.3 cm2),
respectively in the polluted region. Where it was (17.8 cm, 1.25 g and 27.7 cm2), for
control region, respectively. Also, there was no significant differences in water content
between the two studied regions. It attained respectively (52.2 and 53.9 %).
Our results showed:
- That a number of hiatus decreased, whereas the wools increased in the polluted region
compared with control region insignificantly. The mean of a number of it was 12 in
polluted region, compared with 14 in the control region.
- A simple insignificant reduction in the concentration of chlorophyll A in polluted region
compared with the control, where it attained (0.93 and 0.98), respectively.
The Nerium oleander plant was resistance and tolerance to the air pollution.
تم في هذا البحث دراسة تاثير تراكيز مختلفة من ملح كلوريد الصوديوم (0-30-50-70 ميلي مولر /ل كلوريد الصوديوم) في المعايير الشكلية والفيزيولوجية والحيوية الكيميائية لفول الصويا
We discussed the importance of studying the trichomes award in
olive trees, leaves and its role in the resistance to these trees against
pollution resulting from the Banias refinery intake, through the
study of their density and distribution on a
superficial paper and
examine the concentration of chlorophyll in the leaves, and
comparing the results between the contaminated areas and the
control area .
Results showed that the density of the trichomes play a role in
protecting the ports of entry into force of pollutants into the plant
tissue, and its impact on the pigments of photosynthesis, and thus
the process of photosynthesis.
نفذت هذه التجرية في مخبر الزراعة بدون تربة - البيت البلاستيكي- كلية الهندسة الزراعية للعام الدراسي (2015-2014)
In this study, the effect of different concentrations of sodium chloride
(NaCl) (0, 50, 100, 150 mM) on some physiological characteristics and some
growth indicators of SO4 grape rootstock propagated in vitro was studied at the
laboratories of Gen
eral Commission for Scientific Agricultural Research
(GCSAR), Damascus/Syria. Results indicated that the increase of NaCl
concentration up to 100 mM in culture medium led to reduce the growth
indicators (survival plants, average of the plant length and average number of
buds) with significant differences when compared with the control plants after
4 weeks from culturing on multiplication media, while treatment with 150 mM
of sodium chloride led to death of all plants. Using the concentrations 50 and
100 mM of NaCl also caused decreasing the total chlorophyll content in the
leaves.
This study was conducted at the laboratories of Horticultural Department, Faculty
of Agriculture, Damascus University to determine the effect of using three levels of
sucrose (10, 30, 50 g /l) on chlorophyll content between healthy and vitrified pl
ants of
three varieties of Gypsophylla panicolata (Golantwo, Planshnet, Newlove). Results
showed superiority of treatment 10 g / l sucrose in reducing vitrification percent to
36.78% compared with 62.57% for control (30 g/l) and with significant differences
between varieties. Planshnet was the best variety in chlorophyll content either in healthy
or in vitrified plantlets. Moreover, the treatment with sucrose of 10 g/l caused significant
increment of chlorophyll content compared with other treatments. The high total
chlorophyll content was 17.46 micrograms/ ml in healthy plants compared with 14.26
micrograms / ml in vitrification plants for Planshnet at 10 g/l sucrose.
