Synergistic effect of spraying potassium and kinetin on growth and some nutrient elements content of lentil (Lens culinaris Medic.)

Abstract

The experiment was conducted in greenhouse of Biology Department, Education College for pure sciences/Ibn Al-Haithium, Baghdad University, to study the effect of spraying with three concentrations of potassium(200, 400 and 600)mg.L-1, two concentrations of kinet-in(75and150)mg.L-1 and their interaction, meanwhile-the control transplants sprayed with dis-tilled water with two sprayings times on some morphological characteristics(plant height, num-ber of branches and dry matter percentage) and some nutrient elements content(N, P, K, Ca and Mg) of lentil shoot (Lens culinaris Medic.). The experiment was conducted as a factorial experiment. Completely Randomized Design (C.R.D.) was used with three replicates. Lest Significant Difference(L.S.D.) was used at proba-bility of 0.05 to compare between means. Results showed that:1-Spraying plant with potassium at concentration 600mg.L-1 increased significantly some studied characteristics which gave the highest mean of plant height, number of branches and N, K and Ca contents, but concentration 400mg.L-1 gave the highest mean of dry matter percentage, P and Mg contents, compared with the lowest values which produced from the plants of control treatment. 2-Spraying plant with kinetin at concentration 150mg.L-1 increased significantly all studied characteristics. 3-The interaction between two factors studied was significant and treatment (400mgK.L-1 +150mgKin.L-1) was superior to all treatments in all characteristics except the number of branches.