Amjad Alsamra(1)*, Yaser Hamad(2), and Mitiady Boras(1)
(1). Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia, Syria
(2) Department of Soil Sciences, Faculty of Agriculture, Tishreen University, Lattakia-Syria.
(*Corresponding author: Amjad Wahib Alsamra, E-Mail: amjadalsamra444@gmail.com , Mobile: 0988466799 ).
Received: 6/06/2023 Accepted: 2/08/2023
Abstract:
The research was carried out within an agricultural field in the Al-Haffa region (Lattakia Governorate) during the spring season of the 2022 agricultural season. The research aimed to study the effect of each of seaweed extract (Alga600) and the bacterial biofertilizer consisting of the following bacterial species (Azotobacter chroococcom, Frateuria aurantia, Bacillus megaterium, Rhizobium leguminosarum) on the growth and production of summer squash ‘Philla F1 hybrid’.The study included four treatments: control (untreated plants), plants sprayed with seaweed extract, plants inoculated with bacterial biofertilizer once and plants inoculated with bacterial biofertilizer twice.In the implementation of the research, the complete random block system was followed, with three replications for one treatment, at a rate of /15/ plants per treatment.The results showed the positive effect of both inoculation with bacterial fertilizer and spraying with seaweed extract on growth and productivity of summer squash plant.The treatment of foliar spraying with seaweed extract was significantly superior to the rest of the treatments and achieved the best results compared with the control.The plant height was (74.3) cm, the number of plant leaves was (34.7) leaves/plant, the leaf area was (11902) cm2/plant, and the leaf area index was (3.30). This was reflected positively in the productivity indicators, as the previous treatment recorded the highest values in the number of fruits (19.6) fruits/plant, plant production (2359.2) g/plant, and a production efficiency of (39.2%).
Keywords: squash (Cucurbita Pepo.L), bacterial biofertilizers, seaweed extract(Alga600), indicators of vegetative growth, productivity.
Full paper in Arabic: pdf