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تاثير التلوث البيئي على بعض النباتات النامية في مناطق ملوثة بالعناصر الثقيلة في محافظة نينوى == The Effect of Environmental Pollution On Some Plants Growing In Polluted Sites By Heavy Metals In The Province of Nenivah
Author name:
حسين صابر محمد علي الراشدي
Supervisor name:
يحيى داؤد وهب المشهداني | خليل ابراهيم بندر النعيمي
General topic:
Biology
Specific topic:
Environment - Environmental pollution
Degree:
Doctorate
University:
Tikrit University - Faculty Of Education - Department Of Biology
Language:
Arabic
University location:
Salahaddin
First pages:
24T2974 - p.pdf
Abstract:
اجريت هذه الدراسة في جامعة الموصل / كلية التربية /قسم علوم الحياة، لتحديد بعض المناطق الملوثة بالعناصر الثقيلة (Cu, Zn, Cd) في محافظة نينوى، وتاثيرها على النمو والقيمة الغذائية وتراكمها في الاجزاء المختلفة للانواع النباتية المختلفة المزروعة في هذه المواقع | this study is conducted in the University of Mosul - College of Education department of biology to identify some of the areas polluted with heavy metals (cu, zn, cd) in the Province of Nineveh, and their effect upon the growth and the nutrition value and its accumulation within the different planted species in these areas. Furthermore, the effect of soil treatment with cadmium, zinc, and copper have been studied with different concentration on the physiology growth and response and the nutritious value of the safflower, fenugreek, coriander, and flares and its ability to accumulate the heavy metals in its different parts as a technique of treating polluted soil with heavy elements through plants.The results showed that the upper Maximum recorded value of cadmium and copper in the soil of Hawi ALkanisa area reached 1.509, 15.900 mg/kg soil respectively and zinc in the soil of Hamam Alaleel area which reached 181.470 mg/kg.The most polluted area with heavy metals was Hawi ALkanisa, Alshora, Hamam Alaleel and Aldanadan in comparison with the other areas and this affected negatively on the growth and nutrient value of vegetables (Malva sylvestris, Beta vulgaris, Apium graveolens, Menthae piperitae, Raphanus saltivus, and Lepidium sativum) planted within these area where it had been noticed the decrease of these plants growth and its neutrinos value with respect to plants content of nutritious mineral elements such as calcium, magnesium, potassium, chloride, and sodium with concentration of proteins and carbohydrate and the occurring of an increase in the concentrations of heavy metals (cu, zn, cd) in the different plant parts in comparison with the growing plants in other less polluted areas.It became clear that the most resistant plants to the effects of these elements was the Raphanus sativus which belongs to the plant family Cruciferae known of its role in removing and treating polluted soil with heavy metals.The study in the plastic greenhouse showed that soil treatment with cadmium within concentrations (1, 2, 3) mg/kg and with zinc in concentrations (150, 300, 450) mg/kg and with copper in concentrations (50, 100, 150) mg/kg of soil caused decreasing the growth of safflower, fenugreek, coriander, and flares plants, and decreasing its protein, carbohydrate, and potassium concentration in the different plant parts. Moreover, it caused increasing peroxidaes and Superoxide dismutase enzymes in the Shoot and increasing heavy metals concentration in the different plant (the Shoot and Root group and grains)of the four plants.Also increasing these elements concentration was directly proportional with increase concentration in soil, and the study showed that the most tolerant plants for elements effect was safflower in comparison with the other plants.
