A master’s thesis at the College of Agriculture, University of Kerbala, discussed the response of Damask rose (Rosa damascena Mill.) to the addition of algae extract and foliar application of thiamine and phenylalanine on certain growth indicators and essential oil content.
The thesis aimed to:
• Investigate the response of Damask rose (Sultani cultivar) to the addition of algae extract and foliar spraying with thiamine and phenylalanine, and their effects on improving growth indicators.
• Determine the best concentrations of the studied factors and their impact on vegetative, floral, chemical growth parameters, and essential oil content of the rose.
• Identify the most effective binary and ternary interactions that positively influenced the studied traits.
The thesis was presented by the student Alya Mohammed Mahmoud Salman.
The study recommended expanding the use of algae extract as a safe and effective natural treatment to enhance the vegetative and floral growth of Damask rose and to increase its essential oil content. It also recommended incorporating these treatments into sustainable and organic farming programs for Damask rose as promising alternatives to conventional chemical fertilization.








