Effect of Feeding with Potassium Humate and Salicylic Acid and Some Micronutrients (B, Mn, Zn) On Quantity and Quality of Essential Oil That is Extracted from Tuberose Flowers.

Nermen ahmad (1)*, Mazen Nassour (1), and Sawsan Haifa (2)

(1 ) Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(2) Department of soil and water science, Faculty of Agriculture, Tishreen University,Lattakia, Syria.

(*Corresponding author: Nermen Ahmad, E-Mail: nermen_eng86@yahoo.com).

Received:28/08/2021          Accepted:14/12/2021  


This study has been carried out for the growing season (2018-2019), in the nursery of Lattakia city council, in cooperation with Tishreen university labs, In order to study the effect of five treatments on the quantity and quality of the essential oil of the Tuberose flower, which is fertilized with (2) kg/m2 organic fermented manure. These treatments included: Irrigation with potassium humate at a concentration of 1.5 g/l/m2(T2), and foliar spraying with salicylic acid at a concentration of 0.2g/l (T3), and foliar spraying with micro nutrients at a concentration of (0.15%Zn + B 0.01% + Mn 0.15%) (T4), and a combination of potassium humate, salicylic and micro nutrients with the  previous concentrations (T5), in addition to the control treatment (T1). the treatments were arranged in spreader according to Complete sectional design. The result showed that all treatments have exceeded the control treatment (T1) for the quantity(0.098)%, and quality which was determined by the content of Benzenoid compounds in the first place (12.8) %, and Terpenes (sesqui ,mono) in the second place (4.7, 3.6) %respectively, the treatment T5  has given the best results for the quantity and quality, the average amount of essential oil was (0.154) %, content of Benzenoid compounds (30.9) %, Sesquiterpenoids (15.6) %, monoterpenoids (6.7 %) .

Keywords: Tuberose, Humic acid, Salicylic acid, Essential oil, Monoterpenoids, Benzenoid compounds.

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