THE EFFECT OF FOLIAR APPLICATION WITH SALICYLIC ACID AND NUTERGREEN ON GROWTH AND YIELD OF STRAWBERRY PLANT

A field experiment was conducted to evaluate the effect of spraying Fragaria x ananassa Duch plants cv. Ruby gem with various concentrations of salicylic acid (0, 1.5 and 3) mM and Liquid organic Fertilizer (Nutergreen) (0,2) ml.L-1 in the growth and yield of the plants. The seedlings were planted in unheated plastic house during the season (2020-2021) , two weeks after transplanting they were sprayed with either salicylic acid (three sprays), Liquid organic fertilizer Nutergreen (four sprays), with an interval of one month between each factor. The seedlings were sprayed first with salicylic acid, then with Nutergreen, with an interval of one week between each spray. The results indicated that the interaction treatment of spraying with a concentration of 1.5mM of SA with 2ml.L-1 of Nutergreen gave the best results for most of the vegetative growth characteristics number of leaves 29.68, leaf area 1759.30cm2, percentage of dry matter of shoot 47.06%, fruit length 35.04mm, weight 11.13gm, percentage of total soluble solids 10.75% and Total yield 125.92gm.plant-1, while the interaction treatment of spraying of Salicylic acid (2ml.L-1) of Nutergreen gave the best results of the characteristics of number of new plants.mother plant-1 23.00, Number of flowers.plant-1 11.08, Diameter of fruit 23.30mm, number of fruit.plant-1 10.50, percentage of Total acidity 0.592, Total percent of nitrogen and protein 2.63, 16.48, respectively and Percentage of Total Market-ability yield 97.00%.