Abdullah H .A. Al-hajj*(1), Ahmed M. Eed (1), Ahmed Ali Rashed(1), Rana Ali Mohammed(1), Howida Jawad Abdalaziz(1) and Mosleh Abdalhamid(1)
(1). Department of Plant Production, Faculty of Agriculture and Food Science, Ibb University, Ibb Governorate, Republic of Yemen.
(*Corresponding author: Abdullah H .A. Al-hajj, E-mail: Abdullah_1963@yahoo.com)
Received:20/09/2022 Accepted:30/10/2022
Abstract:
The experiment was conducted in the College of Agriculture and Food Sciences, Ibb University, on 25/2/ 2022 , with the aim of studying the effect of spraying with licorice and garlic root extracts on some flowering and productivity indicators of the squash crop. A completely randomized design (R.C.D)was followed As a factorial experiment with three replications and two factors: The first factor is licorice root at three levels of 0, 3, 6 g/L. The second factor is garlic extract at four levels of 0, 2, 4, 6 cm3 / liter and with three sprays for each, the first in the stage of 3-4 true leaves, then repeat the spraying for the second and third time with an interval of two weeks between spraying and the other. A set of traits were studied, namely the number of female flowers, the number of male flowers, the sexual ratio, and percentage of nodes , the number of fruits/plant, the early yield ton/ha, the plant production kg, the total productivity ton/ha). The results showed that spraying with licorice root extract achieved an apparent insignificant increase in all studied indicators at the concentration of 3 g/L. Except for the plant production (kg) and the total productivity ton/ha, the same concentration led to a significant increase. The results also showed that spraying garlic extract at a concentration of 6 cm3 / liter led to a significant increase in all studied indicators. except for the number of male flowers, The same concentration led to a significant decrease. The interaction between spraying with licorice root powder extract and garlic extract had a significant effect on all studied traits compared to the control and the rest of the treatments. Except for the number of male flowers, the same concentration led to a significant decrease male flowers compared to the witness and the rest of the treatments. The research proved the effectiveness of garlic and licorice extracts at a certain concentration in increasing the number of female flowers against a decrease in the number of male flowers per plant, which results in an increase in plant production and thus an increase in the total productivity.
Keywords: licorice root, garlic, productivity, Cucurbita pepo.
Full paper in Arabic: pdf