Response of Barley (Hordeum vulgare L.) Plants to Foliar Fertilizer with Different Concentrations of Hoagland Solution

This experiment was conducted in pots with a randomized complete design to study the effects of foliar application with Hoagland’s solution (0, 1/4, 1/2, 3/4 and full strength) on some morphological, physiological and yield characters of barley cv. Towetha. Both 1/4 and 1/2 strength treatments showed significant increase in all morphological (height of plant, leaves number, flag leaf area, tiller numbers, shoot dry weight), physiological (chlorophyll a, b and total chlorophyll, total nitrogen and total protein) and yield characters (number of spikes/plant, 100-grains weight and grain yield/plant ) compared with the control treatment. It is concluded that barley cultivar gave a clear response to foliar application with Hoagland’s solution and the half-strength Hoagland’s solution was the preferred nutrient solution evaluated in this research.