EFFECT OF FOLIAR AND GIBBERELLIN ON GRAIN YIELD AND ITS COMPONENTS OF BARLEY

Abstract

Afield experiment Was conducted at the experimential farm to study theeffect of Foliar application NPK and gibberellen on growth and seed Yield ofbarley during 2013-2014 season. RCBD was used with four replications. andtwo factors ,first was NPK application in four levels NPK1 200+1000+2500mg.L-1, NPK2 300+1500+3500 mg.L-1, NPK3 400+2000+4500 mg.L-1and thecontrol 0 ( water only). The second was application of gibberellen in four levels200,300,400 mg.L-1and the control o were applied when the plant heights were50 cm average. The result of the experiment showed that: NPK3 gave the highestplant height 96.19 cm and tillers numbers 552.57 tiller m-2and spike of numbers520.65 spike m-2. NPK3 gave the highest green forage (26.78 Mg.ha-1) for barly.while NPK1 gave the highest seed production 3.53 Mg ha-1. NPK2 gave Thehighest dry weight 41.98 g.GA3 gave the highest in all growth characteristicswhile GA1 gave the highest dry wight for barley 42.66 g.the higher grain yield3.52 Mg ha-1in application of GA1. there were significant interaction betweenNPK and gibberellen The interaction between NPK3 and GA3 gave highestplant growth while the interaction between NPK1 with GA2 gave highest grianyield 4.05 Mg.ha-1.