Othman Khalid Alwan*(1) and Shahad Mohammed Turki (1)
(1). Department of Horticulture and Landscape Design. College of Agriculture. Diyala University. Iraq.
(*Corresponding author: Dr. Othman Khalid Alwan. E-Mail: athman56@yahoo.com)
Received:3/09/2023 Accepted:15/10/2023
Abstract:
Afactorial experiment was carried out in the fall of 2022 at the research station of the Department of Horticulture and Landscape – College of Agriculture – University of Diyala to study the effect of spraying plants with foliar nutrients boron, zinc and sorbitol and their interactions at concentrations of 100 ml.L-1 for each of boron and zinc and 5 g.L-1 sorbitol on three A hybrid of cauliflower. It was designed with a split plot system within (RCBD). The main plots represented the spraying agent and the secondary plots represented the cauliflower hybrids. The results showed that the combined spray treatment (sorbitol, zinc, boron) was superior in vegetative Characteristics, including the percentage of nitrogen and phosphorus and the concentration of boron in the leaves, which reached 2.60%, 0.36%, and 64.21 ppm, respectively, as well as plant height, stem diameter, and number of leaves, which reached 68.87. cm, 3.38 cm, 20.987 leaf-1, compared to the comparison treatment that gave the lowest values. The V3 Barkha hybrid also excelled in the characteristics of the percentage of nitrogen and phosphorus and the concentration of boron in the leaves, which recorded 2.26%, 0.29%, 52.07 ppm, as well as plant height and Stem diameter and a number of leaves reached 69.58 cm, 2.89 cm, and 20.833 leaf-1, respectively, compared to the peral V3 hybrid, which gave the lowest values. The results also showed a significant superiority of the double interaction between the combined spray treatment (sorbitol, zinc, boron) and the Barkha V3 hybrid in all chemical and vegetative growth characteristics, compared to the double interaction between the V3 peral hybrid and the comparison spray treatment, which gave the lowest values for all the studied traits.
Keywords: cauliflower, foliar nutrients, boron, zinc, sorbitol.
Full paper in Arabic: pdf