تأثير المعاملة بحمض الجبرليك والسماد النتروجيني والتداخل بينهما في نمو وإنتاجية نبات الملوخية (Cochorus Olitorius L.).

Angel  Othman; Badeeh  Samra

doi:10.35516/JJAS.3558

Authors

Angel Othman Tishreen University, Lattakia, Syria https://orcid.org/0009-0005-7030-1348
Badeeh Samra Tishreen University, Lattakia, Syria

DOI:

https://doi.org/10.35516/JJAS.3558

Keywords:

Jew's Mallow, Gibberellic Acid, Nitrogen, Growth, Productivity, Interaction

Abstract

A field experiment was conducted in Tartous Governorate, in the Al-Drikish area, through out the agricultural season 2024 to compare the effects of gibberellic acid spray, nitrogen soil fertilization, and their interaction on the growth and yield of jew's mallow using a local variety. Hence, A completely randomized design (CRD) was employed. The experiment included nine treatments with three replications: control: G₀N₀, spray with gibberellic acid). G₁N₀= 25 ppm, G₂N₀= 50 ppm (, nitrogen fertilization (G₀N₁= 15 g/m², G₀N₂=25 g/m²( , and interaction treatments (G₁N₁ ,G₁N₂ ,G₂N₁ ,G₂N₂). The results showed that the treatment with gibberellic acid at 50 ppm showed significant superiority over the other treatments after 60 days of sowing, providing the highest values for all studied vegetative and productive parameters, including: plant height (107 cm), leaf area (977 cm²/plant), length of lateral branches (46.8 cm), plant weight (41.6 g) and yield (2080 g/m²). The interaction effect has shown that spraying with gibberellic acid ( at both 50 and 25 ppm) combined with the highest nitrogen level, 25 g/m², resulted in a significant increase in vegetative growth, and increase in plant weight, and yield compared to the other interaction treatments and control.

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Author Biographies

Angel Othman, Tishreen University, Lattakia, Syria

Department of Horticulture, Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria

Badeeh Samra, Tishreen University, Lattakia, Syria

Professor, Department of Horticulture, Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria

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