The role of gibberellic acid and DAP fertilizer on growth of lentil (Lens culinaris Medic.)

Abstract

Pots experiment was conducted in the green house of Biology Department, College of Education (Ibn Al-Haithum), University of Baghdad, during growing season of 2009, to study the effect the interaction between three concentrations of gibberellins (0, 50, 100) mg/L and three levels of Diamonium phosphate fertilizer (0, 40, 80) kg/ donum this equal (0, 0.16, 0.32) gm/2kg pot respectively, on vegetative growth of lentil cultivar (Baraka). Factorial experiment with in acompletely randomized design with three replications was adopted.Results showed that, the gibberellin concentrations and fertilizer levels increased the above mentioned characteristics namely plant height, number of branches, dry matter weight, absolute growth rate and biomass duration. The interaction between 100 mg/L gibberellin and 80 kg/ donum fertilizer giving the highest values of these characters except the number of branches.