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Changes in water content and dry matter in grains of some cereal crops during the period from anthesis to physiological maturity

تبدلات وزن الماء و المادة الجافة في حبوب عدد من محاصيل الحبوب من الإزهار و حتى النضج الفيزيولوجي

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 Publication date 2005
  fields Field Crops
and research's language is العربية
 Created by Shamra Editor




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This experiment was conducted at two ecologically different regions, Boka, and Gellien, using 3 lines of X.triticosecale Wittmack (372, C.187, and C.G.2) and 6 cultivars of wheat (5 of them were triticum durum Cham1, Cham3, Cham5, Bohoth5, and Haurani, and one of triticum aestivum Cham6), to assess the changes in water content and dry matter in the grains during the period from anthesis to physiological maturity .The results showed that all genotypes had the same moisture content curves, whereas it had seemed that the two durum wheat cultivars (Cham1 and Bohoth5) exhibited a disturbance in the moisture development curves in the first region, and the same observation was noticed on (Cham1, Cham3, and Cham5) in the second region. However, triticale lines had a higher test weight of 1000 grain compared with wheat cultivars in the two regions, and there was a positive relationship between grain fill duration and the weight of 1000 grain, whereas, there was a depression in the test weight of wheat cultivars in the second region in comparison with the first one, but it is associated with an increase of protein percentage, and this might be attributed to temperature elevation during grain fill stage.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة التغيرات في محتوى الماء والمادة الجافة في حبوب بعض المحاصيل الحبوبية خلال الفترة من التزهير إلى النضج الفسيولوجي. أجريت التجربة في منطقتين بيئيتين مختلفتين، بوقا وجلين، باستخدام ثلاثة خطوط من X.triticosecale Wittmack وستة أصناف من القمح. أظهرت النتائج أن جميع الأنماط الوراثية كانت لها نفس منحنيات محتوى الرطوبة، ولكن لوحظ اضطراب في منحنيات تطور الرطوبة في بعض أصناف القمح القاسي في المنطقتين. كما أظهرت خطوط التريتيكالي وزنًا أعلى لحبوب الألف مقارنة بأصناف القمح في المنطقتين، وكان هناك علاقة إيجابية بين مدة ملء الحبوب ووزن الألف حبة. ومع ذلك، كان هناك انخفاض في وزن اختبار أصناف القمح في المنطقة الثانية مقارنة بالأولى، ولكن ذلك كان مرتبطًا بزيادة نسبة البروتين، مما قد يُعزى إلى ارتفاع درجة الحرارة خلال مرحلة ملء الحبوب.
Critical review
دراسة نقدية: على الرغم من أن الدراسة تقدم معلومات قيمة حول التغيرات في محتوى الماء والمادة الجافة في الحبوب، إلا أنها قد تكون محدودة من حيث التنوع الجغرافي والبيئي، حيث تم إجراء التجارب في منطقتين فقط. قد يكون من المفيد توسيع نطاق الدراسة لتشمل مناطق بيئية أخرى للحصول على نتائج أكثر شمولية. كما أن الدراسة لم تتناول بشكل كافٍ العوامل البيئية الأخرى التي قد تؤثر على نتائج التجربة مثل التربة والري. بالإضافة إلى ذلك، قد يكون من المفيد تضمين تحليل اقتصادي لتقييم الجدوى الاقتصادية للأصناف المختلفة من الحبوب.
Questions related to the research
  1. ما هي الأنماط الوراثية المستخدمة في الدراسة؟

    تم استخدام ثلاثة خطوط من X.triticosecale Wittmack وستة أصناف من القمح في الدراسة.

  2. ما هي المناطق البيئية التي أجريت فيها التجربة؟

    أجريت التجربة في منطقتين بيئيتين مختلفتين، بوقا وجلين.

  3. ما هي العلاقة بين مدة ملء الحبوب ووزن الألف حبة؟

    كان هناك علاقة إيجابية بين مدة ملء الحبوب ووزن الألف حبة.

  4. كيف أثرت درجة الحرارة على نتائج التجربة؟

    ارتفاع درجة الحرارة خلال مرحلة ملء الحبوب كان مرتبطًا بزيادة نسبة البروتين في الحبوب.


References used
Ben Amar, F. (1999). Genetic advances in grain yield of Durum wheat under low – rainfall conditions. Rachis 18 (1): 31 – 33
Budak, N. (2000a). Hertability, correlation and genotype X year iteraction of grain yield, test weight and protein content in durum wheat. Turkish Journal of field crops 5 (2): 1111 – 1301
Daynard, T. B., and L. W. Kannenberg. (1976). Relationships between the length of actual and effective grain filling periods and the grain yield of corn. Can. J. Plant Sci. 56:237 – 242
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