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Register a new userEvaluation of the performance of some barley (Hordeumvulgare) genotypes under rainfed conditions
تقييم أداء بعض الطرز الوراثية من الشعير (.L Hordeumvulgare) تحت ظروف الزراعة المطرية
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Damascus University ورقة بحثية
Publication date
2013
fields
Field Crops
and research's language is
العربية
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Shamra Editor
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قيم أداء 16 طرازاً وراثياً من الشعير بزراعتها تحت ظروف الزراعة المطرية، في منطقتـي دمـشق و درعا المتباينتين بيئياً بالهطولات المطرية، و درجات الحرارة خلال الموسم الزراعي2011-2012 بهدف دراسة مدى تأثر الصفات الكمية المحددة للغلة الحبية بظروف الجفاف. صممت التجربة وفـق القطاعـات العشوائية الكاملة العاملية، بمعدل ثلاثــة مكررات لكل طراز وراثـي، و تبـين وجـود فـرق معنـوي (P>05.0) في استجابة الطرز الوراثية المدروسة من الشعير لظروف الإجهاد المائي، إذ كـان أداؤه فـي موقع إزرع بمحافظة درعا (الأقل جفافاً) أفضل بالمقارنة مع موقع أبي جرش بمحافظـة دمـشق (الأكثـر جفافاً). و قد تفوقت معظم السلالات المدروسة على الصنفين المعتمدين: عربي أبيض و عربي أسـود، فـي متوسط عدد الحبوب في السنبلة. و كان الأعلى معنوياً لدى السلالة29) 17.43 حبة في السنبلة). كما كـان متوسط عدد الحبوب في المتر المربع الأعلى معنوياً لدى نباتات السلالة 29 ،تلاها السلالة 64 ،ثم الـصنف: م.حبة 10744 ،10802 ،10809 ،11177) 14فالسلالة، أبيض عربي 2- على التوالي)، و بلـغ متوسـط الغلة الحبية الأعلى معنوياً لدى السلالة64 ،و السلالة14 ،و الصنف: عربي أبـيض (3.479 ،476 ،443غ. م2- على التوالي). كما تفوقت السلالات جميعها على الصنفين المعتمدين عربي أبيض و عربي أسود فـي صفة دليل الحصاد.
A field experiment was conducted at two environmentally different locations (Damascus and Dara'a), to evaluate the performance of 16 barley genotypes under rainfed conditions during the growing season of 2011-2012 in order to study in the response of some quantitative traits and determine the yield under drought conditions. The experiment was laid out according to the factorial complete randomized block design with three replicates for each genotype. Significant genetic variation was found in the response of barley genotypes to water stress. The performance of all genotypes was significantly superior in the less dry region (Izra’a-Daraa) compared to the more dry one (Abo jarash- Damascus) for all the examined parameters. Results revealed that the number of grains per spike was significantly higher in most lines compared to Arabi Abiad and Arabi Aswad, and the number of grains per spike was significantly higher in the line29 (43.17 grain per spike). The number of grains per m2 was significantly higher in line29,line64, Arabi Abiad and line14 (11177, 10809, 10802, 10744 grains per m2), respectively. The mean grain yield was significantly higher in the line64, line14 and Arabi Abiad. (479.3, 476 and 443 gram per m-2), respectively. Harvest index was significantly higher in all lines compared to Arabi Abiad and Arabi Aswad.
Artificial intelligence review:
Research summary
هدفت هذه الدراسة إلى تقييم أداء 16 طرازًا وراثيًا من الشعير تحت ظروف الزراعة المطرية في منطقتي دمشق ودرعا خلال الموسم الزراعي 2011-2012. استخدمت الدراسة تصميم القطاعات العشوائية الكاملة مع ثلاثة مكررات لكل طراز وراثي. أظهرت النتائج وجود اختلافات معنوية في استجابة الطرز الوراثية للإجهاد المائي، حيث كان الأداء أفضل في منطقة درعا الأقل جفافًا مقارنة بمنطقة دمشق الأكثر جفافًا. تفوقت معظم السلالات المدروسة على الصنفين المعتمدين عربي أبيض وعربي أسود في متوسط عدد الحبوب في السنبلة، حيث سجلت السلالة 29 أعلى عدد حبوب في السنبلة (43.17 حبة). كما أظهرت السلالة 29 أيضًا أعلى متوسط لعدد الحبوب في المتر المربع (11177 حبة م²). كانت الغلة الحبية الأعلى معنويًا لدى السلالة 64 (479.3 غرام م²). أظهرت الدراسة أهمية السلالتين 64 و14 كمادة وراثية لتحمل الجفاف مع الحفاظ على كفاءة الإنتاجية، وأشارت إلى أن الغلة الحبية تتحدد بعدد الحبوب في وحدة المساحة، مما يعزز أهمية تحسين هذه الصفة في برامج التربية.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة مهمة في فهم تأثير الإجهاد المائي على إنتاجية الشعير في ظروف الزراعة المطرية، وقد أظهرت نتائج مفيدة حول أداء الطرز الوراثية المختلفة. ومع ذلك، كان من الممكن تحسين الدراسة من خلال تضمين المزيد من المواقع البيئية المختلفة لزيادة تعميم النتائج. كما أن الدراسة ركزت بشكل كبير على الصفات الكمية دون التطرق بشكل كافٍ للصفات النوعية التي قد تكون مهمة أيضًا في تقييم الأداء الكلي للطرز الوراثية. بالإضافة إلى ذلك، كان من الممكن استخدام تقنيات تحليلية أكثر تقدمًا لتحليل البيانات بشكل أعمق.
Questions related to the research
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ما هو الهدف الرئيسي من الدراسة؟
الهدف الرئيسي من الدراسة هو تقييم أداء 16 طرازًا وراثيًا من الشعير تحت ظروف الزراعة المطرية في منطقتي دمشق ودرعا خلال الموسم الزراعي 2011-2012.
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ما هي الطرز الوراثية التي أظهرت أفضل أداء في الدراسة؟
أظهرت السلالتان 64 و14 أفضل أداء في الدراسة، حيث سجلت السلالة 64 أعلى غلة حبية (479.3 غرام م²) والسلالة 14 أظهرت أداءً جيدًا أيضًا.
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ما هي الفروقات البيئية بين منطقتي الدراسة؟
منطقة درعا كانت أقل جفافًا مقارنة بمنطقة دمشق، حيث كانت الهطولات المطرية ودرجات الحرارة مختلفة بين المنطقتين خلال الموسم الزراعي.
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ما هي الصفات التي تم قياسها في الدراسة لتقييم أداء الطرز الوراثية؟
تم قياس عدة صفات منها نسبة الإشطاءات المثمرة إلى الكلية، متوسط عدد الحبوب في السنبلة، متوسط عدد الحبوب في المتر المربع، متوسط وزن الألف حبة، الغلة البيولوجية، الغلة الحبية، ودليل الحصاد.
References used
Abeledo, L. G., D. F. Calderini, and G. A. Slafer. 2002. physiological changes associated with genetic improvement of grain yield in barley. In: “Barley science: recent advances from molecular biology to agronomy of yield and quality” G. A. Slafer, J. L. Molin-Cano, R. Savin, J. L. Araus, I. Romagosa (eds.) Haworth, New York, pp 361–386
Blum, A. 1983. Breeding programs improving drought resistance to water stress. In C. D. Jr, Raper and P.J. Kramer (eds.), Crop reaction to water and temperature stresses in humid, temperate climates. Westview Press, Boulder, Colorado, USA, pp. 263-275
Bouzerzour, M. and A. Ben Mahamed. 1991. Correlation and regression studies of barley in eastern Algeria. Rachis 10 (2) :35-36
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