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Reda, F., Abbaas, M., Abdel-hamid, N., Nassar, R. (2010). ENHANCEMENT OF VEGETATIVE GROWTH AND PRODUCTION OF VIGOROUS TRANSPLANTS IN Khaya senegalensis (Desr.) A. Juss. BY USING ASCORBIC ACID. Journal of Plant Production, 1(1), 67-76. doi: 10.21608/jpp.2010.86066
Faten M. Reda; Mona M. Abbaas; Nebal S. Abdel-hamid; Rania M. A. Nassar. "ENHANCEMENT OF VEGETATIVE GROWTH AND PRODUCTION OF VIGOROUS TRANSPLANTS IN Khaya senegalensis (Desr.) A. Juss. BY USING ASCORBIC ACID". Journal of Plant Production, 1, 1, 2010, 67-76. doi: 10.21608/jpp.2010.86066
Reda, F., Abbaas, M., Abdel-hamid, N., Nassar, R. (2010). 'ENHANCEMENT OF VEGETATIVE GROWTH AND PRODUCTION OF VIGOROUS TRANSPLANTS IN Khaya senegalensis (Desr.) A. Juss. BY USING ASCORBIC ACID', Journal of Plant Production, 1(1), pp. 67-76. doi: 10.21608/jpp.2010.86066
Reda, F., Abbaas, M., Abdel-hamid, N., Nassar, R. ENHANCEMENT OF VEGETATIVE GROWTH AND PRODUCTION OF VIGOROUS TRANSPLANTS IN Khaya senegalensis (Desr.) A. Juss. BY USING ASCORBIC ACID. Journal of Plant Production, 2010; 1(1): 67-76. doi: 10.21608/jpp.2010.86066

ENHANCEMENT OF VEGETATIVE GROWTH AND PRODUCTION OF VIGOROUS TRANSPLANTS IN Khaya senegalensis (Desr.) A. Juss. BY USING ASCORBIC ACID

Article 6, Volume 1, Issue 1, January 2010, Page 67-76  XML PDF (434.47 K)
Document Type: Original Article
DOI: 10.21608/jpp.2010.86066
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Authors
Faten M. Reda1; Mona M. Abbaas1; Nebal S. Abdel-hamid1; Rania M. A. Nassar2
1Department of Forestry and Woody Trees, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt.
2Department of Agricultural Botany, Faculty of Agriculture, Cairo University, Giza, Egypt.
Abstract
The current investigation was carried out during the two successive seasons of 2007/2008 and 2008/2009 in order to enhancement of seedling growth and produce vigorous transplants in African Mahogany by foliar application with ascorbic acid (0, 100, 200, 400 and 600 ppm).
The obtained results revealed that most of the applied concentrations of ascorbic acid (200, 400 and 600 ppm) promoted significantly the investigated morphological characters (plant height, number of leaves/plant, total leaf area/plant, fresh weight of shoot/plant and dry weight of shoot/plant) of vegetative growth of African Mahogany (10 months old) and produced vigorous transplants in both studied seasons. The maximum promotion was achieved at 600 ppm ascorbic acid which in turn being statistically indifferent with the effect obtained by 400 ppm ascorbic acid in this concern. Likewise, the maximum significant increase in concentration of photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) and of total sugars in leaves of African Mahogany plant aged 10 months was detected at 600 ppm ascorbic acid. Also, such treatment caused considerable thickness of the main stem of African Mahogany plant aged eight months by increasing thickness of both phloem and xylem tissues as well as by increasing diameter of pith. Likewise, average diameter of vessel was increased in treated plants to cope with vigorous growth induced by foliar application with 600 ppm ascorbic acid.
Keywords
Kaya senegalensis; African Mahogany; Ascorbic Acid; Vegetative Growth; Photosynthetic Pigments; Total Sugars; Stem Anatomy
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