EFFECT OF FOLIAR APPLICATION OF CHITOSAN, TRIACONTANOL, AND BENZYLADENINE ON THE CONCENTRATION OF SOME PHYTOHORMONES AND YIELD OF STRAWBERRY

Authors

  • Haider Odeh Abdai-sada Al-Saeedi Department of Horticulture and Landscape Engineering, College of Agricultural Engineering Sciences, University of Baghdad, Iraq https://orcid.org/0009-0003-5605-5924
  • Hussain Nory Rasheed AL-Karawi Department of Horticulture and Landscape Engineering, College of Agricultural Engineering Sciences, University of Baghdad, Iraq

DOI:

https://doi.org/10.36103/6g62pt81

Keywords:

auxins, cytokinins, gibberellins, small fruits

Abstract

This study aims to assess the effect of foliar application with chitosan, triacontanol and benzyl adenine on the growth and Yield of Strawberry plants. A factorial experiment (3 × 3 × 2) was carried out in Randomized Complete Block design (RCBD) within split-plot arrangement with three replication, at the University of Baghdad from July the, 1st, 2023 to July the, 1st, 2024, The main plots of the experiment consisted of 2 levels of chitosan (0, 500 mg L⁻¹), whereas the sub-plots were 3 levels of triacontanol (0, 1 and 2 mg L⁻¹) and benzyladenine (0, 250 and 500 mg L⁻¹). Application of 500 mg L⁻¹ chitosan exerted significant improvement in all traits studied. Triacontanol at 2 mg L⁻¹ improved plant height, crown number, chlorophyll content, auxin and cytokinin levels, and yield. Benzyl adenine at 500 mg L⁻¹ increased hormone levels, Flowers number, and fruit yield.. Notably, the interaction among the three factors had a synergistic effect on most traits. These findings suggest that combined application of these substances can effectively promote growth and productivity in strawberry cultivation

Received: 16/4/2025

Accepted: 9/7/2025

Published: 31/8/2026

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Published

2026-08-31

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Vol. 57 No. 8 (2026)

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Copyright (c) 2026 Haider Odeh Abdai-sada Al-Saeedi, Hussain Nory Rasheed AL-Karawi

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How to Cite

Al-Saeedi, H., & AL-Karawi, H. (2026). EFFECT OF FOLIAR APPLICATION OF CHITOSAN, TRIACONTANOL, AND BENZYLADENINE ON THE CONCENTRATION OF SOME PHYTOHORMONES AND YIELD OF STRAWBERRY. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, 57(8), 2302-2316. https://doi.org/10.36103/6g62pt81