Marwa   Afesa^(1)*, Mitiady Boras⁽²⁾ and Fahed sahuni⁽³⁾

(1). Al-issawiya counseling unit, Department of Agriculture Lattakia, Directorate of Agriculture and Agrarian Reform, Lattakia, Syria.

(2). Horticulture Department, Faculty of Agricultural Engineering, Tishreen University, Lattakia, Syria.

(3). Horticulture Department, Faculty of Agriculture, Aleppo University, Lattakia, Syria.

(*Corresponding author: Marwa  Afesa. E-Mail: Marwa.3fesa@gmail.com).

Received:  4/07/2023                     Accepted: 20/08/2023

Abstract: 

The research was carried out during the spring season of 2021 on bisaysin village(Jablah), lattakia governorate, the research aimed to study the effect of foliar spray with licorice root extract on some flowering and productivity indicators of summer squash “SYDRA F₁ HYBRID”. The experiment included four treatments the control and the plants being sprayed with licorice root extract by three concentrations(4,6,8)g\L, the experiment was designed as a randomized complete block with three replicates per treatment, and 15 plants in each  replicate. The results showed that foliar spray with licorice root extract 8g\L  achieved a significant difference as compared to other treatments in terms of all studied indicators,  it led to a highest values of number of female flowers, percentage of inflorescences, number of fruits, the yield of plant and production efficiency (22.9 flower\plant, 87.2%, 20 fruit\plant, 2482g\plant, 57.7%) compared with control plants(13.2 flower\plant, 69.1%,1048g\plant).

Keywords: summer squash plant, licorice root extract, flowering  indicators,productivity.

Full paper in Arabic: pdf