Dean of the College of Agriculture Participates in a Doctoral Dissertation Defense at the University of Kufa

Byإعلام كلية الزراعة جامعة سامراء Reading Time: 2 minutes

Professor Dr. Khalid Abdullah Suhr, Dean of the College of Agriculture at Samarra University, participated as the chair of the doctoral dissertation defense committee held in the Department of Horticulture and Landscape Engineering at the College of Agriculture, University of Kufa.

The dissertation, titled “The Effect of Organic Fertilization and Spraying with Gibberellin and Tryptophan on the Growth and Yield of Barhi Date Palm (Phoenix dactylifera L.),” was presented by student Sarah Raqib Mohsen. The study aimed to utilize organic fertilizer (sheep manure) and spray with the growth regulator gibberellin and the amino acid tryptophan to improve vegetative growth indicators, physical and chemical characteristics, and productivity of Barhi date palm trees.

The study results showed that spraying with gibberellic acid at a concentration of 300 mg/L resulted in a significant improvement in vegetative characteristics and most chemical properties of the leaves, as well as in the physical, chemical, and yield characteristics of the fruits. The results also indicated that spraying with the amino acid tryptophan at a concentration of 100 mg/L resulted in a significant improvement in most vegetative and chemical properties of the leaves and in the physical, chemical, and yield characteristics of the fruits.

The study recommended adding organic fertilizers at a rate of at least 20 kg/tree, as they play a role in improving the chemical properties of the soil and increasing the availability of nutrients, especially nitrogen, which positively impacts tree growth, fruit quality, and overall yield. The study also recommended spraying with gibberellic acid at a concentration of 300 mg/L due to its role in accelerating fruit ripening, improving metabolic efficiency, and increasing dry matter and soluble solids accumulation, as well as enhancing vegetative and fruit growth characteristics. It further recommended spraying with tryptophan at a concentration of 100 mg/L for its role in improving the growth and development efficiency of Barhi date palms.

This participation comes within the framework of the College of Agriculture at Samarra University’s commitment to strengthening scientific cooperation among Iraqi universities and exchanging academic expertise, thereby contributing to the support of scientific research and serving the agricultural sector in Iraq.

Media and Government Communication Department

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