Basima Barhom^*(1) and Khayam Mohrez ⁽¹⁾

(1). General Commission for Agricultural Scientific Research, Lattakia, Syria.

(*Corresponding author: Basima Barhom. Email: d.basimabarhom@gmail.com ).

Received: 22/10/2023                                 Accepted: 9/5/2024

Abstract: 

This experiment is carried out during the 2022-2023 season in an open field in the Hinadi nursery, which is affiliated with the Latakia Agriculture Directorate (Latakia Governorate) to test the effect of both the fungus Trichoderma harzianum and Olive Mill Wastewaters on the germination of seeds and the lengths of Pinus pinea L. plants grown in pots. The results of the experiment showed that the biological treatment with T. harzianum led to a clear increase in the wet weight of the entire plant, reaching 11.16 g compared to 9.61 g in the untreated control, and also led to an increase in the wet weight of the roots, reaching 3.7 g compared to 2.66 g in the untreated control. On the other hand, the concentration of 50% Olive Mill Wastewaters did not have a clear effect on the length of the plant, but led to the inhibition of the wet weight of the entire plant compared to the control, and no toxic effects of Olive Mill Wastewaters were observed on the treated plants.

Keywords: Trichoderma – Pinus pinea – Olive Mill Wastewater- Growth indicators.

  Full paper in Arabic: PDF