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The effect of salinity on proline and carbohydrate contenets in three bread wheat genotypes (Triticum aestivum L.) in vegetative growth stage in hydroponic cultures

أثر الملوحة في تركيز السكريات و البرولين لثلاثة أنماط وراثية من القمح الطري (Triticum aestivum L.) في مرحلة النمو الخضري باستخدام الزراعة المائية

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 Publication date 2013
and research's language is العربية
 Created by Shamra Editor




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This study was carried out in 2009-2011, in the laboratories of science faculty - Tishreen University. The seeds of three genotypes: Sham8, Sakha8,AUS 29639 of bread wheat were planted in hydroponic cultures irrigated with Hoagland liquid in a growth chamber to compare the effect of three salt concentrations (0, 100,200 mm of NaCl) on proline and carbohydrate contents in three growth stages 21, 28, 35 of the experiment. There was an increase of proline and carbohydrate contents in all cultivars with increased salinity during the three growth stages of plants. Proline contents increased in Sham8 with low rates compare with Sakha8, AUS 29639. It increased in Sakha8 with the increase of salinity which reached 348% in the third growth stage in concentration 200 mm NaCl, while Proline concentration reached the highest value in AUS 29639 (524%). The carbohydrate content reached the highest value in Sakha8 in NaCl concentration 200 in the first growth stage (238070%) compared with the control, and (204.34%) in third stage in NaCl concentration 200mM compare with the control. The results of the study indicate the superiority of Sakha8, AUS 29639 in salt tolerance through accumulating suitable rates of proline and carbohydrates. AUS 29639 was more resistant to salt stress than Sakha8. We may use these results later in other physiological and genetical studies.


Artificial intelligence review:
Research summary
أجريت هذه الدراسة بين عامي 2009-2011 في مخابر كلية العلوم بجامعة تشرين، حيث تمت زراعة بذور ثلاثة أصناف من القمح الطري (شام8، سخا8، AUS 29639) في مزارع مائية باستخدام محلول هوغلاند. هدفت الدراسة إلى مقارنة تأثير ثلاثة تراكيز ملحية (0، 100، 200 ميلي مول من كلوريد الصوديوم) على محتوى البرولين والسكريات في مراحل النمو الثلاث (21، 28، 35 يوماً). أظهرت النتائج زيادة في تراكم البرولين والسكريات مع زيادة الملوحة في جميع الأصناف، حيث كان الصنف AUS 29639 الأكثر مقاومة للملوحة يليه الصنف سخا8، بينما كان الصنف شام8 الأقل مقاومة. يمكن استخدام هذه النتائج في دراسات فسيولوجية ووراثية مستقبلية لتحسين تحمل القمح للملوحة.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لفهم تأثير الملوحة على محتوى السكريات والبرولين في القمح الطري، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين مزيد من الأصناف لزيادة شمولية النتائج. ثانياً، لم يتم التطرق إلى تأثير الملوحة على جوانب أخرى من نمو النبات مثل الإنتاجية والجودة. ثالثاً، كان من الممكن توسيع الدراسة لتشمل مراحل نمو أخرى غير المرحلة الخضرية. وأخيراً، يمكن تحسين التصميم التجريبي بزيادة عدد المكررات لضمان دقة النتائج.
Questions related to the research
  1. ما هو الهدف الرئيسي من الدراسة؟

    الهدف الرئيسي من الدراسة هو تحديد تأثير تراكيز مختلفة من الملوحة على محتوى البرولين والسكريات في ثلاثة أصناف من القمح الطري خلال مراحل النمو الخضري.

  2. ما هي الأصناف الثلاثة التي تم دراستها؟

    الأصناف الثلاثة التي تم دراستها هي شام8، سخا8، AUS 29639.

  3. ما هو الصنف الأكثر مقاومة للملوحة بناءً على النتائج؟

    الصنف الأكثر مقاومة للملوحة بناءً على النتائج هو AUS 29639.

  4. ما هي التوصيات المستقبلية التي قدمتها الدراسة؟

    أوصت الدراسة باستخدام الأصناف المتحملة للملوحة كأصول وراثية في برامج التربية للحصول على أصناف ذات كفاءة عالية في تحمل الملوحة، ومتابعة الدراسة حقلياً لدراسة مدى تفاعل هذه الأنماط الوراثية مع الظروف البيئية المختلفة.


References used
ABDELMALEK,C., KHALED,T. Physiological behavior of wheat genotypes from Algerian semi-arid regions grown under salt stress. African Journal of Agriculture Research 5(23), 2011, 636-641
ANIL K GUPTA and NARINDER KAUR. Sugar signalling and gene expression in relation to carbohydrate metabolism under abiotic stresses in plants. J. Biosci. 30(5), December 2005, 101
ASHRAF, M. and TUFAIL, M. Variation in salinity tolerance in sunflower. J.Agron. Soil Sci., 1995, 174:351-362
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