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A study of Some Factors Affecting the Vegetative Micropropagation of Ornamental Viburnum Bush (Viburnum Tinus L.)

دراسة بعض العوامل المؤثرة في الإكثار الخضري الدقيق لشجيرة الرباطية الغارية التزيينية (Viburnum tinus L.)

1480   2   30   5.0 ( 1 )
 Publication date 2013
  fields Groves
and research's language is العربية
 Created by Shamra Editor




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This study was conducted during 2012-2013 in order to efficiently micropropagate viburnum (Viburnum tinus) bushes using tissue culture techniques. The shoots were cultured on a Murashige and Skoog medium supplemented with 30 gl-1 sucrose, 7 gl-1 agar - agar, citric acid as an anti-oxidant (300 mgl-1), and different concentrations of benzyl amino purine and Naphthalene Acetic Acid. A media of Murashige and Skoog was used for laboratory rooting after reducing the major mineral elements to the half, reducing the sucrose to 20 gl-1, and addingindole-3-butyric acid (IBA) of different concentrations (0, 0.5, 1, 1.5 mgl-1). The results showed that it is necessary to have auxin and cytokinin in culture to improve the value of open buds and the number of shoots per initial explants. The concentrations 0.25 mgl-1 from NAA with 1 mgl-1 from BAP gave the highest value of open buds (93.33%) and the maximum number of shoot per initial explants (1.57). To improve the number and length of the shoots produced, the solution mineral (MS) was replaced with another: media woody plants (WPM) which gave better elongation for the resulting growths (3.21 cm) and a better number of shoots (2.72 Growth/explant) compared to the media (MS) using the same compatibility hormone (0.25 mgl-1 of NAA and 1 mgl-1 of BAP). The results also show that the highest percentage of rooting reached (84.44%) with (0.5 mgl-1) IBA which was better than (1.5 mgl-1) IBA and better than the treatment of the control. Results also showed that the best medium for the length and number of roots formed was (2.7cm, 3.82root) when the concentration was (0.5 mgl-1) surpassing the control. The success rate of the acclimatization of the resulting laboratory plantlets under glasshouse conditions reached (73.33%) one month and a half after the transplanting.


Artificial intelligence review:
Research summary
تناولت هذه الدراسة التي أجريت خلال العامين 2012-2013 إكثار شجيرة الرباطية الغارية باستخدام تقنيات زراعة الأنسجة. تم زراعة عقل ساقية غضة في وسط مغذي يحتوي على محلول معدني (MS) مضافاً له سكروز وآجار بالإضافة إلى حمض الستريك كمضاد أكسدة وتراكيز مختلفة من BAP و NAA. في مرحلة التجذير، استخدم وسط (MS) بعد تخفيف تركيز العناصر المعدنية الكبرى للنصف والسكروز إلى 20 غ/لتر مع إضافة تراكيز مختلفة من IBA. أظهرت النتائج أن مشاركة الأوكسين مع السيتوكينين في مرحلة الزراعة الأولية ضرورية لتحسين نسبة تفتح البراعم وعدد النموات الخضرية، حيث أعطت التراكيز 0.25 مغ/ل من NAA و1 مغ/ل من BAP أفضل النتائج. ومع ذلك، كان عدد النموات وطولها دون المطلوب، مما استدعى استبدال المحلول المغذي (MS) ببيئة النباتات الخشبية (WPM) التي أعطت استطالة أفضل للنموات. في مرحلة التجذير، كانت أعلى نسبة تجذير بتركيز 0.5 مغ/ل من IBA، وأظهرت النبيتات الناتجة قدرة جيدة على التأقلم مع ظروف البيت الزجاجي بنسبة نجاح بلغت 73.33% بعد مرور شهر ونصف من نقلها.
Critical review
دراسة نقدية: تعتبر هذه الدراسة خطوة هامة في مجال إكثار النباتات باستخدام تقنيات زراعة الأنسجة، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن توسيع نطاق الدراسة ليشمل أنواعاً أخرى من النباتات لتعميم النتائج. ثانياً، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل البيئية الأخرى مثل درجة الحرارة والرطوبة على عملية الإكثار. ثالثاً، كان من الممكن إجراء تجارب إضافية باستخدام تراكيز مختلفة من منظمات النمو لتحسين النتائج. وأخيراً، كان من الأفضل تضمين تحليل اقتصادي لتكلفة هذه التقنية مقارنة بطرق الإكثار التقليدية.
Questions related to the research
  1. ما هي الأهداف الرئيسية لهذه الدراسة؟

    هدفت الدراسة إلى إكثار شجيرة الرباطية الغارية باستخدام تقنيات زراعة الأنسجة وتحديد البيئة الملائمة والتوافق الهرموني المناسب للحصول على أفضل مردودية من النموات الخضرية القابلة للتجذير والأقلمة.

  2. ما هي النتائج الرئيسية التي توصلت إليها الدراسة في مرحلة الزراعة الأولية؟

    أظهرت النتائج أن مشاركة الأوكسين مع السيتوكينين في مرحلة الزراعة الأولية ضرورية لتحسين نسبة تفتح البراعم وعدد النموات الخضرية، حيث أعطت التراكيز 0.25 مغ/ل من NAA و1 مغ/ل من BAP أفضل النتائج.

  3. ما هي البيئة التي أعطت أفضل استطالة للنموات الخضرية؟

    بيئة النباتات الخشبية (WPM) أعطت أفضل استطالة للنموات الخضرية مقارنة ببيئة (MS) باستخدام نفس التوافق الهرموني.

  4. ما هي نسبة نجاح تقسية النبيتات الناتجة في ظروف البيت الزجاجي؟

    وصلت نسبة نجاح تقسية النبيتات الناتجة في ظروف البيت الزجاجي إلى 73.33% بعد مرور شهر ونصف من نقلها.


References used
AMO-MARCO, J. B. and PICAZO, I. 1994. Effect of growth regulators on in vitro propagation of Ficus benjamina cv. Exotica. Biologia Plantarum (impact factor: 1.97). 05/1994; 36(2):167-173. DOI:10.1007/BF02921081
ATTA-ALLA, H.K.; MOGHAZY, E.I.; WALY, A.K.; MOHAMMED, S. 2006. Micropropagation of Bombax malabaricum and Callistemon lanceolatus. Alexandria Journal of Agricultural Research
BHATTACHARYYA S., 2010. In Vitro propagation of Jasminum officinale L.: a woody ornamental vine yielding aromatic oil from flowers. department of Botany, Bose institute, Kolkata, India; 589:117-126
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