تأثير الرش بالسكريات الكحولية و البورون في بعض مؤشرات النمو و الإزهار و الإنتاج لنبات الفراولة (Fragaria x ananassa Duch)‎ صنف أوزوغراند (Oso grande)‎

الملخص EN

This research aimed to study the effect of spraying boron and sugar alcohols on vegetative growth, fruit quality and total yield of Strawberry plants (Fragaria × ananassa Duch cv.

Oso Grande).

The experiment was carried out at the Faculty of Agriculture (University of Damascus/Syria) during 2021.

Results showed that spraying strawberry plants with sorbitol and mannitol at three different concentrations (10, 20 and 30 g/L-1) and boric acid at three concentrations of (0, 50 and 100 mg l-1) increased most of the studied parameters.

It was also noticed that the number of leaves increased (19.06, 21.62, 23.95 leaf/plant) when plants were sprayed with sorbitol (10, 20 and 30 g/L-1) respectively, and (19.78, 22.57, and 25.13 leaf/plant) when plants were sprayed with mannitol (10, 20 and 30 g/L-1) respectively as compared to the control treatment (15.27 leaf/plant).

Total yield was positively affected by spraying with mannitol 30 g/L-1 (556.29 g/plant) while it reached (465.48 g/plant) with sorbitol 30 g/L-1 in comparison with the control (fruit quality was increased by increasing boron concentration).

The highest total soluble solids (8.69%) were observed at the concentration of 100 ppm of boron in comparative with the control (7.59%).

The interaction between two variables (30g/L-1 mannitol and 100 ppm boron) significantly increased all studied parameters, such as number of leaves (29.06), leaf area (32.60cm2), number of flowers (35.43), total yield (712.03 gm.) in addition to fruit quality (TSS 9.30% and ascorbic acid content 52.03 mg/100g fresh weight) as compared to control treatment (0 mg/l).