THE ROLE OF ACETIC ACID AND ROCKPHOSPHATE ON GROWTH AND YIELD OF STRAWBERRY (FRAGARIA X ANANASSA. DUCH)

This study was conducted at the nursery of a directorate of Agriculture/Najaf city during 2017-2018 growth season to study the role of acetic acid and rockphosphate on growth and yield components of strawberry in green houses. A randomized complete block design was used as factorial experiment in two factors, the rockphosphate which applied in five levels 0, 1, 2, 3, 4 and 5 g.plant(-1). The second factor is the acetic acid, without or with 5ml. Plant(-1) in three replicates. The results showed the superiority of plants that treated with acetic acid, especially in the number of flowers, setting flowers, number of fruits, fruit weight, number of petals, leaf area, total chlorophyll and percent of nitrogen, phosphorous and potassium in leaves. Most of the plants that fertilized with rockphosphate were healthy plants because they have the highest values of growth and yield parameters such as the number of fruits, fruit diameter and weight and nutrients content in leaves. The best combination between acetic acid and rockphosphate was 5 ml acetic acid. Plant(-1) and 5 g rock phosphate. Plant(-1) which enhanced and promoted the growth and yield components of strawberry plants.