Zinnia (Zinnia Elegans L.) Response to Foliar Spray of Triacontanol and Zinc Sulfate

Abstract

The experimental study was conducted during the spring season of 2023 in Ghosn Nursery for Flower Production in Diyala Governorate to study the impact of foliar spraying with Triacontanol and Zinc on the growth and flowering of zinnia plants. The experiment was designed according to randomized complete block design (RCBD) as a factorial experiment (4×4). The first stage in the experiment included planting seeds in cork plates containing peat moss; one seed was planted in each eye. The findings of this study can be concluded that foliar spraying with triacontanol and Zinc sulfate (ZnSO₄) has significant superiority in all studied traits. The concentration of 18 mgL^-1 and 3 g L^-1 of triacontanol and Zinc sulfate concentration respectively, was superior in all studied traits. This pioneering investigation explores applying zinc sulfate (ZnSO₄) as a targeted supplement, optimizing Zinnia growth and flowering. In addition to focusing specifically on the companying effect of triacontanol and ZnSO₄ doses and holistically evaluating Zinnia performance.