Effect of a biofertilizer (Em1) and a seaweed extract (Alga 600) in improving the morphological and physiological characteristics of strawberry

Abstract

The experiment was carried out in the Al-Adawi area in the city of Damascus during 2020, 2021 seasons. In order to study the effect of treatment with biofertilizer (Em1) at two concentrations (4 and 8 ml/l) and seaweed extract (Alga 600) at two concentrations (1 and 2 g/l) and the interaction between them in improving the morphological and physiological characteristics of the strawberry plant (cv. Festival). The experiment was designed according to a simple random design, and the morphological and physiological characteristics were studied in the laboratories of the Faculty of Agriculture at Damascus University. The results showed that the treatment with biofertilizer (Em1) at a concentration of 8 ml/l supplemented seaweed extract (Alga 600) at a concentration of 2 g/l was superior to the

other treatments and to the control in increasing the number of runners (2.87 runners/plant), runner length (124.57 cm/ runner), number of new plants formed for each runner (4.40 new plants/ runner), chlorophyll a (3.75 mg/g wet weight), chlorophyll b (1.49 mg/g wet weight), total carotenoids (1.08 mg/g wet weight), nitrogen (2.55 %), phosphorous (0.53 %) and potassium (1.90 %).