Effect of potassium and cycocel (ccc) foliar application on the morphological traits of Maize (Zea mays L)

Mohammed, Asmaa Mohammed Hussein; Ali, Abdullah Yassin

doi:10.32894/MEDIP.26.4.2.5

	Effect of potassium and cycocel (ccc) foliar application on the morphological traits of Maize (Zea mays L)
Journal of Medicinal and Industrial Plant Sciences
Volume 4, Issue 2, June 2026, Pages 47-55 PDF (436.48 K)
Document Type: Original Article
DOI: 10.32894/MEDIP.26.4.2.5
Authors
Asmaa Mohammed Hussein Mohammed^* ; Abdullah Yassin Ali
Department of Biology, College of Education for Women, University of Kirkuk, Iraq.
Abstract
This trial was carried out in the experimental fields of the Technical Institute in Hawija District, 35°20′02″N 43°46′54″E Kirkuk Governorate, during the fall season of 2025. Its purpose was to assess the effectiveness of foliar application of potassium at 0, 500, 1000, and 1500 mg L⁻¹, as well as the plant growth regulator Cycocel (CCC) at 0, 150, and 200 mg L⁻¹. The research included the study of several morphological traits: plant height (cm), number of leaves, stem diameter, leaf area (cm²), and dry weight rate. The statistical results of the studied traits indicated a significant increase at the potassium concentration of 1500 mg L⁻¹ in both plant height and number of leaves. The results also showed a significant superiority of the Cycocel treatment at a concentration of 200 mg L⁻¹ in plant height and number of leaves. However, a significant decrease was observed at 200 mg L⁻¹ of Cycocel in the dry weight rate. Regarding the interaction between the two factors, a significant superiority in plant height was observed at 200 mg L⁻¹ of Cycocel combined with 500 mg L⁻¹ of potassium, reaching 247.33 cm. The interaction between 1000 mg L⁻¹ potassium and 150 mg L⁻¹ Cycocel showed significant superiority in number of leaves and stem diameter, reaching 13.33 and 3.33, respectively. Moreover, the interaction between 1500 mg L⁻¹ potassium and 0 mg L⁻¹ Cycocel achieved a significant superiority in leaf area, reaching 306.6 cm².
Keywords
Cycocel; Potassium; Maize ( Zea mays L.); Phenotype

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