Kawthar Abou Assali *(1), Roula Bayerli (2),and Bassam Al Atalah (1)
(1). Sewida Research Center/ General Commission for Scientific Agricultural Research (GCSAR)/ Damascus, Syria.
(2). Horticulture department/ Faculty of Agricultural Engineering/ Damascus University. Damascus, Syria.
(*Corresponding author: Kawthar Abou Assali. E-Mail: kawtharaboassaly@gmail.com).
Received: 26/03/2023 Accepted: 14/05/2023
Abstract:
The research was conducted at Sewida Agricultural Scientific Research Center/ General Commission for Scientific Agricultural Research/ Syria during the year 2021. The aim was studying the effect of treatment with salicylic acid (SA) and different irrigation levels on germination of Baladi cucumber cultivar seeds. The seeds were treated for 24 hours, with several concentrations of salicylic acid (0, 1, 50, 150 mg/L) at room temperature, then they were planted in germination trays and several levels of irrigation were applied (100% water: full irrigation, 60% of full irrigation, 80% of full irrigation). The experiment was designed using a randomized complete block design, and data were analyzed by Two-Way ANOVA. The results showed a decrease in all studied indicators (Germination percentage, germination speed, germination vigor depending on the shoot length, germination vigor depending on the wet weight of seedling, shoot length, wet weight of seedling and wet weight of shoots and roots) as the applied irrigation levels decrease. Treatment with SA had a positive effect on the aforementioned indicators, as the concentrations used for SA achieved a significant difference compared to the control. The concentration of 50 mg / L achieved the highest value among the concentrations tested in all indicators, especially in the average germination vigor depending on the shoot length (329.7), germination vigor depending on the wet weight of seedling (752.8), and the wet weight of seedling (9.363), which showed a significant difference compared to the rest of the treatments and the control (215.9, 445.8, 6.273, respectively). The results of the interaction showed that the two concentrations 50 and 150 mg / L achieved a significant difference compared to the control in all indicators under the different irrigation levels. The concentration 50 mg/L in all irrigation levels achieved the highest values for studied indicators compared to the control. It can be said that the pre-soaking with salicylic acid, especially the concentration 50 mg/L, achieved a significant improvement in the studied indicators in response to different irrigation levels at the germination level.
Keywords: Irrigation level, Cucumber, Salicylic acid, Seeds, Germination.
Full paper in Arabic: pdf