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.
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
