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Effect of severity of pruning on yield of apple trees under high density system

تأثير شدة التقليم في إنتاج أشجار التفاح في نظام الزراعة الكثيف

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




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This research was carried out on (10) years old ( Golden delicious & Starking delicious ) apple trees . which were planted in AlKafron region – Tartus Governorate under high density system . The research aims to study the effect of severity of dormant pruning on yield of apple trees during (2012-2013) . There were the results were found : 1- There wasn't any effect of pruning treatments on total soluble solids content or total sugars . 2- Pruning treatments were better than control in fruit set in both cultivars , in Golden delicious, were ( 40.75 - 33.20 %) in severe Pruning and control, respectively , in starking delicious , were (31.35 – 26.30 %) in severe Pruning and control, respectively , and Pruning treatments were better than control in average of weight fruit in both cultivars , in Golden delicious, were (140.50-129.30) g in severe Pruning and control, respectively , in starking delicious , were (151.70-139.90) g in severe Pruning and control, respectively . 3- Pruning treatments resulted to reduce total acidity content . 4- Pruning treatments resulted to reduce yield by (14.19-19.72)% in Golden delicious and starking delicious , respectively , comparing with control .


Artificial intelligence review:
Research summary
تناول البحث تأثير شدة التقليم الشتوي على إنتاجية أشجار التفاح المزروعة في نظام الزراعة الكثيف في منطقة الكفرون بمحافظة طرطوس. أجريت الدراسة على صنفي التفاح Golden delicious و Starking delicious خلال موسم 2012-2013. أظهرت النتائج أن شدة التقليم لم تؤثر على محتوى الثمار من المواد الصلبة الذائبة الكلية والسكريات الكلية، ولكنها أثرت بشكل إيجابي على نسبة العقد ووزن الثمار. من ناحية أخرى، أدى التقليم إلى تقليل إنتاجية الأشجار، حيث كان الانخفاض أكبر في صنف Starking delicious مقارنة بـ Golden delicious. كما أدى التقليم إلى تقليل الحموضة الكلية للثمار. استنتج الباحثون أن التقليم الشديد يزيد من نسبة العقد ووزن الثمار ولكنه يقلل من الإنتاجية الكلية للأشجار. وأوصوا بإجراء تقليم خفيف إلى متوسط للحصول على إنتاج جيد.
Critical review
دراسة نقدية: من خلال قراءة هذه الدراسة، يمكن القول أن البحث قد قدم معلومات قيمة حول تأثير شدة التقليم على إنتاجية أشجار التفاح. ومع ذلك، يمكن انتقاد الدراسة من ناحية أنها لم تأخذ في الاعتبار تأثير العوامل البيئية الأخرى مثل التربة والمناخ على النتائج. كما أن الدراسة اقتصرت على صنفين فقط من التفاح، مما قد لا يعكس تأثير التقليم على أصناف أخرى. بالإضافة إلى ذلك، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تم متابعة تأثير التقليم على مدى عدة سنوات بدلاً من موسم واحد فقط.
Questions related to the research
  1. ما هو تأثير شدة التقليم على نسبة العقد في أشجار التفاح؟

    أظهرت الدراسة أن شدة التقليم تزيد من نسبة العقد في كلا الصنفين Golden delicious و Starking delicious.

  2. هل أثرت شدة التقليم على محتوى الثمار من المواد الصلبة الذائبة الكلية والسكريات الكلية؟

    لم تؤثر شدة التقليم على محتوى الثمار من المواد الصلبة الذائبة الكلية والسكريات الكلية.

  3. ما هو تأثير شدة التقليم على إنتاجية أشجار التفاح؟

    أدى التقليم إلى تقليل إنتاجية الأشجار، حيث كان الانخفاض أكبر في صنف Starking delicious مقارنة بـ Golden delicious.

  4. ما هي التوصيات التي قدمها الباحثون بناءً على نتائج الدراسة؟

    أوصى الباحثون بإجراء تقليم خفيف إلى متوسط لأشجار التفاح بعمر 10 سنوات في ظروف الزراعة الكثيفة للحصول على إنتاج جيد.


References used
BARDEN, J . A ; DELVALLE , T . B ; S.C. MYERS , S.C. Growth and fruiting of ‘Delicious’ apple trees as affected by severity and season of pruning. J. Amer. Soc. Hort Sci. 114, 1989, 184-186
COSTA , C. G ; BELTRAME , J . P. ZERBINI , K . A ; PIANEZZOLA , R . D. 2001, High Density Planted Apple Orchards Effects on Yield , Performance and Fruit Quality , ISHS Acta Horticulturae 451 , 2001
ELFVING , D.C. Growth and productivity of ‘Empire’ apple trees following a single heading-back pruning treatment. HortScience 25. 1990,908-910
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