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Genetic indicators of some quantitative traits in hybrids of barley (Hordeum vulgare L.)

المؤشرات الوراثية لبعض الصفات الكمية في هجن من الشعير (Hordeum vulgare L)

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 Publication date 2014
and research's language is العربية
 Created by Shamra Editor




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A half diallel set of crosses among six highly diverse barley (Hordeum vulgare L.) genotypes were evaluated at Karahta station of field crops research (GCSAR) Damascus Governorate, during 2010-2011 and 2011-2012 seasons to study heterosis and combining ability components for plant height, grain yield per plant, number of spikes per plant, number of grains per spike and thousand kernel weight.


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Research summary
تتناول هذه الدراسة التهجين نصف التبادلي بين ستة طرز وراثية من الشعير في محطة بحوث قرحتا التابعة للهيئة العامة للبحوث العلمية الزراعية في سوريا خلال الموسمين الزراعيين 2010-2011 و2011-2012. هدفت الدراسة إلى تقدير القدرة العامة والخاصة على التوافق وتأثيرات التهجين على صفات ارتفاع النبات، الغلة الحبية، عدد السنابل في النبات، عدد الحبوب في السنبلة، ووزن الألف حبة. أظهرت النتائج أن التباين الوراثي للطرز الوراثية وللقدرة العامة والخاصة على التوافق كان معنوياً في جميع الصفات المدروسة باستثناء القدرة العامة على التوافق لصفتي ارتفاع النبات ووزن الألف حبة. أشارت النتائج إلى أهمية الفعل الوراثي اللاتراكمي في وراثة الصفات المدروسة. تميز الأب (M-6455) بأفضل قدرة عامة على التوافق لصفتي الغلة الحبية وعدد الحبوب في السنبلة، بينما تميز الأب (S-6689) بصفة عدد السنابل في النبات. كما أظهرت الهجن (T-6669×S-6303) أفضل قدرة خاصة على التوافق لصفة الغلة الحبية.
Critical review
تعتبر الدراسة مفصلة وشاملة في تحليلها للقدرة العامة والخاصة على التوافق وتأثيرات التهجين على الصفات المختلفة للشعير. ومع ذلك، يمكن أن تكون هناك بعض النقاط التي تحتاج إلى تحسين. أولاً، كان من الممكن تقديم تحليل أعمق للعوامل البيئية وتأثيرها على النتائج، حيث أن الظروف البيئية قد تلعب دوراً كبيراً في التعبير عن الصفات الوراثية. ثانياً، كان من الممكن تضمين المزيد من التفاصيل حول الطرق الإحصائية المستخدمة لتحليل البيانات، مما يساعد على تعزيز موثوقية النتائج. أخيراً، كان من الممكن توسيع نطاق الدراسة ليشمل المزيد من الطرز الوراثية والهجن للحصول على نتائج أكثر شمولية.
Questions related to the research
  1. ما هي الصفات التي تم دراستها في هذه البحث؟

    تم دراسة صفات ارتفاع النبات، الغلة الحبية، عدد السنابل في النبات، عدد الحبوب في السنبلة، ووزن الألف حبة.

  2. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو تقدير القدرة العامة والخاصة على التوافق وتأثيرات التهجين على الصفات المختلفة للشعير.

  3. أي الطرز الوراثية أظهرت أفضل قدرة عامة على التوافق لصفة الغلة الحبية؟

    الأب (M-6455) أظهر أفضل قدرة عامة على التوافق لصفة الغلة الحبية.

  4. ما هي النتائج المتعلقة بالقدرة الخاصة على التوافق لصفة الغلة الحبية؟

    الهجن (T-6669×S-6303) أظهرت أفضل قدرة خاصة على التوافق لصفة الغلة الحبية.


References used
Abeledo, L. G, Calderini, D. F. and Slafer, G. A. 2002. Physiological changes associated with genetic improvement of grain yield in barley. Food Products Press, an Imprint of the Haworth Press, Inc. New York, 361-386
Al-Shalaldeh, G and Duwayri, M. A. 1986. Inheritance of morphophysiological characters and grain yield in durum wheat crosses. Rachis, 5(1): 37-41
Bothmer, V. R, N, Jacobsen, C, Baden, R. B, Jorgensen and I, Linde-Laursen. 1991. Anecogeographical study of the genus Hordeum. International Boardfor Plant Genetic esources, Rome, 127 p
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