The PhD thesis at the College of Agriculture, University of Basrah, discussed (Induction of systemic resistance in some eggplant cultivars against infection by Koch Tetranychus urticae by using salicylic and jasmonic acids).
The researcher Yusra Jamal Taleb's thesis included the use of four concentrations of salicylic acid, the comparison treatment, 0.5, 0.75, and 1 mmol, and jasmonic acid, the comparison treatment, and 5, 50, and 100 micromoles on three varieties of eggplant, which are approved for cultivation in Iraq, Bowie, Barcelona, and Jawaher, and calculating the population density of the different roles of the two-spotted mite infection.
The thesis aims to identify the effect of concentrations of the two acids on stimulating the systemic resistance of eggplant cultivars to infection by the pest. The thesis concluded that eggplant varieties differed in their infection with the two-spotted mite, and the Barcelona cultivar was sensitive to the two-spotted mite infestation, while the Bowie variety was the most resistant to the two-spotted mite.
The thesis recommended the use of the Bowie eggplant variety, as it is the most resistant variety to the two-spotted mite. Testing other concentrations of salicylic and jasmonic acids to find out the ideal concentration for inducing plant resistance to two-spotted mite. The necessity of conducting studies on other varieties of eggplant and identifying varieties resistant to the two-spotted mite.
