https://doi.org/10.37229/fsa.fja.2026.06.07

The study of foliar spraying with different concentrations of humic acid (HA) (0, 7, and 9 mL HA L^-1) of two types of strawberry transplants (fresh) and (frozen)) individually or combined in improving physiological traits, growth and yield of strawberry (fragaria × ananassa Duch.) transplants grown under unheated plastic greenhouse, was conducted at the department of horticulture and landscape engineering, college of agriculture and forestry, university of mosul, during the growing season 2025-2026, application of humic acid foliar spray maybe particularly 9 mL HA L^-1 and the (fresh) transplants type either alone or in combination, led to significant different in all studied traits except fruit acidity caused higher in (fresh) transplants. The combination of foliar application of humic acid with (fresh) strawberry transplants (9 mL HA L⁻¹ + (fresh) transplants) was found to be the best treatment. This treatment increased the number of leaves and leaf area of the plant. It also enhanced number of crowns per plant, number of flowers per plant, fruit set % (HI) and number of days from planting to 50% flowering. In addition, 9 mL HA L⁻¹ + (fresh) transplants increased marketable yield t ha⁻¹, total soluble solids (TSS) in fruit, total acidity in fruit, vitamin C and anthocyanin content as compared to most of the other treatments including control.