Kirkuk University Journal for Agricultural Sciences (KUJAS)

Effect of irrigation water salinity , Foliar Spray of Potassium and Gibberellic acid on chemical characteristics of Olive seedlings (Olea europaea L.) bashiqy cultivar

https://doi.org/10.58928/ku16.07407
Volume 7, Issue 4
Autumn 2016
Page 49-69
Kirkuk University Journal for Agricultural Sciences (KUJAS)

Document Type : Research Paper

Authors

Dalshad R. Azeez
Sazan N. Azeez AL-Jabari
Jassim M. Al-Ishaqi
Abstract
Abstract
This study was conducted in the field of Horticulture and Landscape Design Department / College of Agriculture /University of Kirkuk, during the period from August 18, 2013 to june 1, 2014 on the olive seedling (Olea europaea L.) of bashiqa cultivar with the objective to study the effect of the salinity of irrigation water (control , 4000 and 5000) mg. l-1., foliar spray with potassium at concen- trations (0 and 1000) mg.l-1 and foliar spray with Gibberellic acid at concentrations (0 and 100) mg.l-1 and their interaction in characteristics chemical of leaves (percentage of total carbohydrates , leaves contain of praline , percentage of nitrogen , phosphorus and potassium). led increasing levels salinity of irrigation water to decreased significantly percentage of total carbohydrates , nitrogen , phosphorus and potassium, but it leaves contain of proline was increased signi- ficantly with increasing levels of irrigation water salinity. while Foliar spray with gibberellic acid at concentration (100) mg.l-1 caused not significant The percentage of the total carbohydrates , nitrogen , phosphorus and potassium, but it caused significant effect in leaves contain of proline, Whereas spraying with potassium led to significant increase in percentage of total carbohydrates , nitrogen , phos- phorus and potassium, and to significant decrease in the leaves content of praline.
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