Effect of phosphate fertilization, gibberllin spray and their Interaction on nutritional state of lentil (I*ns culinaris Medic. )

Abstract

Pots experiment was conducted in the green house of Biologydepartment , College of Education ( Ibn Al-Haithum), University ofBaghdad , growing season of 2009,to study three levels of Diamoniumphosphate fertllizer (0,0.16,0.32) eml2Kepot this equal (0,40,80) Kg/d.respectively , three concentrations of gibberllin (0,50,100) ppm andtheir interaction on elements concentration (N,P,K and Ca ) and proteinpercentage in vegetative part of lentll (I*ns culinaris Medic. ) cv.Barka.Factorial experiment with completely randomized design withthree replications was adopted .Results showed that fertilization of phosphate at different levelsand concentrations ofgibberllin spray increased and significantlyinfluenced element concentrations and protein percentage except thephosphorus concentration .Also, results showed that fertilization of phosphate and gibberllinspray has significant effect on N,K and protein percentageconcentration but not significant effect on P and Ca concentration ,since treatment with (80Kg/d. fertilizer and 50ppm gibberllin )gave thehighest concentration of N and protein percentage , while treatmentwith (80Kg/d. fertilizer and l00ppm gibberllin ) gave highestconcentration of K.