Effect of foliar application with kinetin and urea on some growth characteristics of Cleopatra mandarin (Citrus reshni Hort. ex Tan.) rootstock

Abstract

The effect of foliar spraying with the growth regulator (kinetin) and urea the in vegetative growth of Cleopatra mandarin seedlings as well as the success percentage of local sweet orange scions in the spring budding date was investigated for a period from September 2015 to July 2016 in the lath house belonging to the Department of Horticulture and Landscape Gardening, College of Agriculture, University of Baghdad, Abou-Ghraib, Iraq (the alternative location of Anbar University). A factorial experiment was conducted according to the Randomized Complete Block Design (RCBD), with three replicates for each treatment. The kinetin was sprayed with four concentrations (0, 50, 100 and 150 mg.L-1) and spraying with three levels of urea (0, 0.4 and 0.8%). The results showed the significant effect for both study factors in all studied traits where the spraying with kinetin at a concentration of 100 mg.L-1 and the spraying with urea at a concentration of 0.8% showed significant changes in all the studied parameters.