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Abstract

The study was conducted at the Agricultural Research Station, College of Agriculture, University of Basrah, in the Karmat Ali area during the winter agricultural season of 2022-2023. To study the response of two cauliflower cultivars Alnahar and White flake to spray with the growth stimulant Atonic at the concentrations 0, 1.5, and 3 ml L-1 on the growth and yield. The results showed that the Alnahar cultivars were significantly superior in leaf area, curd weight and total yield, in contrast, the White flake cultivars were significantly superior in the fresh and dry weights of the plant, its content of chlorophyll and carotene pigments, curd diameter, dry matter percentage and total soluble solids in the curd. Spraying with the growth stimulant Atonik at a concentration of 3 ml L-1 led to a significant increase in the plants number of leaves, fresh and dry plant, curd weight, total yield, dry matter percentage and total soluble solids in the curd. The interaction between the two factors significantly affected some growth traits. Vegetative and quantitative and qualitative yield components: Alnahar plants sprayed with Atonik growth stimulant at a concentration of 3ml L-1 gave the highest curd weight and total yield of 2.012 kg and 53.11 tons ha-1, respectively.

Keywords

Atonik growth stimulant Cauliflower Cultvars Yield

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How to Cite
Al-sudani, Z. A. ., Ibrahim , O. A. ., & Abdulla, A. A. . (2025). Response of two cauliflower cultivars Brassica oleracea var. botrytis to foliar spray of growth stimulant Atonic in growth and yield. Basrah Journal of Agricultural Sciences, 38(1), 72–80. https://doi.org/10.37077/25200860.2024.38.1.6
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