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Atta, Y., Hasan, A., Abdel-Fatah, A. (2016). RESPONSE OF SOME OLIVE CULTIVARS TO POTASSIUM LEVELS UNDER SALINITY CONDITIONS IN HYDROPONICS SYSTEM. Journal of Soil Sciences and Agricultural Engineering, 7(2), 117-124. doi: 10.21608/jssae.2016.39375
Y. Atta; A. Hasan; A. Abdel-Fatah. "RESPONSE OF SOME OLIVE CULTIVARS TO POTASSIUM LEVELS UNDER SALINITY CONDITIONS IN HYDROPONICS SYSTEM". Journal of Soil Sciences and Agricultural Engineering, 7, 2, 2016, 117-124. doi: 10.21608/jssae.2016.39375
Atta, Y., Hasan, A., Abdel-Fatah, A. (2016). 'RESPONSE OF SOME OLIVE CULTIVARS TO POTASSIUM LEVELS UNDER SALINITY CONDITIONS IN HYDROPONICS SYSTEM', Journal of Soil Sciences and Agricultural Engineering, 7(2), pp. 117-124. doi: 10.21608/jssae.2016.39375
Atta, Y., Hasan, A., Abdel-Fatah, A. RESPONSE OF SOME OLIVE CULTIVARS TO POTASSIUM LEVELS UNDER SALINITY CONDITIONS IN HYDROPONICS SYSTEM. Journal of Soil Sciences and Agricultural Engineering, 2016; 7(2): 117-124. doi: 10.21608/jssae.2016.39375

RESPONSE OF SOME OLIVE CULTIVARS TO POTASSIUM LEVELS UNDER SALINITY CONDITIONS IN HYDROPONICS SYSTEM

Article 3, Volume 7, Issue 2, February 2016, Page 117-124  XML PDF (447.73 K)
Document Type: Original Article
DOI: 10.21608/jssae.2016.39375
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Authors
Y. Atta; A. Hasan; A. Abdel-Fatah
Water Management Research Institute (NWRC), Egypt
Abstract
A study was carried out for the effect of different levels of salinity i.e. (0,60 and 120mM (Nacl) and potassium levels i.e 0 and 30mM (k2So4) on growth and chemical composition of seedlings of two olive cultivars karotina and picwal during 2009 and 2010 seasons at Inshas Research Station, El-Sharkia Governorate, Water Management Research Institute, Egypt. The seedlings were grown in hydroponics system (nutrient film technique NFT).  Results revealed that, increasing salinity levels caused a gradually decrease in plant height, stem diameter, number of leaves/plant, number of branches/plant,  N, P and K percentages, while Na ,Ca and Mg percentages were increased gradually with increasing of salinity levels.
Potassium addition increased in plant height, stem diameter, number of leaves /plant, number of branches / plant, N, P and K percentages, while Na, Ca and Mg percentages were decreased. The results revealed the necessity of potassium fertilizer to reduce negative effects of salinity on plant growth.
Karotina cultivar gave the highest values of previous parameters than picwal cultivar and seems to be more than tolerate salinity compared with picwal cultivar.
Keywords
Salinity – Karotina – Sharkia – Hydroponice – Potasium
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