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Register a new userThe effect of the polluted air which resulting of car stacks in morphology and chlorophyll concentration and the wools of leaves of Nerium oleander L.
تأثير الهواء الملوّث بعوادم السيارات على مورفولوجيا و محتوى اليخضور و كثافة الأوبار و الثغور عند أوراق نبات الدفلة Nerium oleander L.
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Tishreen University ورقة بحثية
Publication date
2018
fields
Life Science
and research's language is
العربية
Authors
نجاة جنود( باحث )
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Shamra Editor
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تناول هذا البحث المقاومة الموجودة عند نبات الدفلة المزروعة على جوانب الطرقات و في مداخل المدن. و ذلك من خلال دراسة أوراق نبات الدفلة من ناحية طول و وزن الورقة، و مساحتها، و المحتوى المائي. بالإضافة لدراسة التجاويف و الأوبار و المحتوى اليخضوري للورقة، و مقارنة هذه الصفات بين منطقة ملوثة و هي مدخل مدينة بانياس، و منطقة نظيفة (الشاهد) و هي حدائق جامعة تشرين. بينت النتائج انخفاض غير معنوي في طول و وزن و مساحة الورقة في المنطقة الملوثة مقارنةً بالشاهد، فبلغت بالنسبة للمنطقة الملوثة (16.2 سم، 0.97 غ، 26.3 سم2) على التوالي، بينما كانت بالنسبة للشاهد (17.8، 1.25، 27.7) على التوالي. كذلك لم يوجد فرق معنوي في المحتوى المائي بين المنطقتين الملوثة و الشاهد و بلغ على التوالي (52.2، 53.9 %). لوحظ من خلال النتائج: - نقصان في عدد التجاويف و زيادة الأوبار المبطنة لها في المنطقة الملوثة مقارنةً بالشاهد بشكل غير معنوي، فبلغ متوسط عدد التجاويف المسامية 12 في المنطقة الملوثة، مقارنةً بـ 14 في منطقة الشاهد. - انخفاض بسيط غير معنوي في تركيز اليخضور أ في المنطقة الملوثة مقارنةً بالشاهد و بلغت (0.93، 0.98) على التوالي. نستنتج من ذلك بأن نبات الدفلة متحمل و مقاوم للتلوث الهوائي.
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, and 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.
References used
ABIDA, B.; HARIKRISHNA, R. and KHAN, M. "Analysis of heavy metal concentration in soil and lichens from various localities of Hosur Road." E-Journals of Chemistry, 2009, 6:13-22
AGBAIRE, P. O. and ESIEFARIENRHE, E. "Air pollution tolerance indices (apti) of some plants around Otorogun gas plant in Delta State, Nigeria." J. Appl. Sci. Environ Manage, 2009, 13(1): 11-14
AMULYA, L; HEMANTH, N. K; JAGANNATH, S. "Air pollution impact on micromorphological and biochemical response of Tabernaemontana divaricata L. (Gentianales: Apocynaceae) and hamelia patens jacq. (Gentianales: Rubiaceae)". Brazilian Journal of Biological Sciences, 2(4): 287- 294. 2015
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