RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS
EL-SAWY, A., WADID, M., EL-BEHAIRY, O., ZOCCHI, Z., ABOU-HADID, A. (2011). RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS. EKB Journal Management System, 89(2), 673-686. doi: 10.21608/ejar.2011.176055
AHMED M. EL-SAWY; MAGDY M. WADID; OSAMA A. EL-BEHAIRY; ZOCCHI G. ZOCCHI; AYMAN F. ABOU-HADID. "RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS". EKB Journal Management System, 89, 2, 2011, 673-686. doi: 10.21608/ejar.2011.176055
EL-SAWY, A., WADID, M., EL-BEHAIRY, O., ZOCCHI, Z., ABOU-HADID, A. (2011). 'RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS', EKB Journal Management System, 89(2), pp. 673-686. doi: 10.21608/ejar.2011.176055
EL-SAWY, A., WADID, M., EL-BEHAIRY, O., ZOCCHI, Z., ABOU-HADID, A. RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS. EKB Journal Management System, 2011; 89(2): 673-686. doi: 10.21608/ejar.2011.176055

RESPONSE OF STRAWBERRY PLANTS TO SHORTENING DAY LENGTH , SHADING AND COLD STORAGE UNDER EGYPTIAN CONDITIONS

Egyptian Journal of Agricultural Research
Article 20, Volume 89, Issue 2, July 2011, Page 673-686  XML PDF (730.2 K)
Document Type: Original Article
DOI: 10.21608/ejar.2011.176055
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Authors
AHMED M. EL-SAWY1; MAGDY M. WADID1; OSAMA A. EL-BEHAIRY2; ZOCCHI G. ZOCCHI3; AYMAN F. ABOU-HADID4
1Central Laboratory of Agricultural Climate, Dokki, Giza, Egypt.
2Horticulture Department, Faculty of Agricultural, Ain-Shams University, Shoubra El-Kheima, Cairo, Egypt.
3Plant Production, Faculty of Agriculture, Milan University, Italy.
4Agricultural Research Center, Giza, Egypt.
Abstract
This experiment was performed in 2004/2005 and 2005/2006 seasons at El-Bosaly Protected Cultivation Experimental Site, of the Central Laboratory for Agricultural Climate (CLAC), 15 Km west of Rosetta. The current study was conducted in open field to investigate the growth and productivity of strawberry plants under the shading and cold storage methods. Two strawberry cultivars were used, i.e., Camarosa (cv.) and Yael (cv.). Transplants were set up on 15 of March to 15 of September in both two seasons of 2004-2005 and 2005-2006, respectively under El-Bosaly conditions. Seven treatments were used i.e., short day, 40% shading, 73% shading, three periods cold storage at 5Co, i.e., (24h, 48h and 73h) and control. Results indicated that the application of 73% shading treatment was the most effective in reducing maximum and minimum of air temperature and radiation, followed by 40% shading, whereas, the highest value of maximum and minimum air temperature, radiation were observed in control treatment throughout the two growing seasons. In addition, 73% shading treatment produced the tallest plants and the highest number of leaves per plant and leaf area per plant. Moreover, flowering and chlorophyll in leaves were increased by application of short day treatment. Also, fruit characters such as average weight and number of fruits per plant were the highest values with 40% shading. Chemical components of fruits, i.e., T.S.S were increased with 73% shading treatment. When plants were grown under 40% shading treatment, followed by 73% shading, while cold storage for 72 h treatment gave the lowest values. Neither cultivars nor the interaction between cultivars and tested factors had any significant effects on many studied characters.
Keywords
Strawberry; Photoperiod; Open field; Shading; Short day; Cold storage; Climatic conditions; Flowering and Total yield
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