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العنوان
The Chemical Ractivity of Alkyl Heterocycles /
المؤلف
Abdalla, Amal Anwar Ali.
هيئة الاعداد
باحث / Amal Anwar Ali Abdalla
مشرف / K. U. Sadek
مشرف / M. I. Zaki
الموضوع
Chemistry, Organic.
تاريخ النشر
1989.
عدد الصفحات
88 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الكيمياء
تاريخ الإجازة
1/1/1989
مكان الإجازة
جامعة المنيا - كلية العلوم - Department of Chemistry
الفهرس
Only 14 pages are availabe for public view

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Abstract

The structure assigned for these products were established based on analytical. 1 H-NMR , Ms and ?c NMR data Both sodium and chloride were accumulated in shoots and roots. The amount of chloride accumulated exceeded that of sodium in both maize lines. Potassium concentration were almost constant in shoots but decreased drastically in roots of both maize lines under salinity. There was no obvious changes in calcium and magnesium contents in shoots and roots, but with slight trend to decrease under salinity in both maize lines. Both lines had no problems in taking up phosphate and sulphate under salinity. In fact, sulphate and phosphate concentrations were increased under salinity. Under salinity, free hexoses were accumulated in shoots, but remained constant in roots. Sucrose levels in shoots increased 5 to 10- fold under salt stress, indicating some contribution to osmotic adaptation. Glycinebetaine and some amino acids, especially proline, glycine, serine, asparagine.