The experiment was carried out during the agricultural season 2020-2021 and included two laboratory experiments. The first was carried out in the laboratories of the Department of Chemistry Sciences / College of Education for Pure Sciences / the University of Diyala, It included the preparation of nano-zinc oxide by a deposition method, and the second field was carried out in Baquba nursery / Diyala Agriculture Directorate. The addition of zinc oxide included nanoparticles at concentrations of 75 and 150 mg. L-1 to the nutrient solution of broccoli plants, in order to study the effect of adding different concentrations of zinc oxide nanoparticles to the sulforaphane content of broccoli by using the soilless cultivation technique. The experiment was carried out using a completely randomized design (CRD) and included a study of 4 treatments, with nine repetitions for each treatment. The averages were compared at the probability level of 0.05, the results showed that the treated plants ZnO75 mg.l-1 significantly by recording the highest mean of 140.μg/g fresh weight, While the average of this trait decreased in plants treated with Cooper's full salt solution and ZnO150 mg.l-1, which recorded the lowest value for this trait, which were 39.25 and 41.26 μg/gm fresh weight, respectively. Compared with the control treatment Cooper's solution without zinc recorded an average of 59.59 μg/gm of fresh weight.
The experiment was carried out during the 2020-2021 agricultural season in the greenhouse of the Baquba nursery/ Diyala Agriculture Directorate, with the aim of studying the effect of spraying with different concentrations of Methyl Jasmonate on the sulforaphane content of the broccoli plant using the soilless cultivation technique. The experiment was implemented using a completely randomized design (CRD) and the study included 4 treatments with nine repetitions for each treatment. The averages were compared at a probability level of 0.05. The study included foliar spraying of broccoli at concentrations of 25,50,75 μmol. l-1 of Methyl Jasmonate As well as a control treatment, the results showed the surprise treatment of the MeJA compound by focusing 25 μmol. l-1, While the average of this trait decreased in the treated plants Mej50 μmol.l-1, which recorded the lowest value for this trait, which was 59.57 μg/gm. Compared to the control MeJA0 μmol.l-1, which recorded a mean of 125.31 μg/g.
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