Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2009.758.764MoakharSaghar Rasaei KhiabaniB.Naserian. AminiI. ArdakaniM.R. PirdashtiH. GhorbaniS. 1020091210In order to evaluate the reaction of yield and yield components of wheats mutant lines to different levels of nitrogen in the crop year of 2006-2007, an experiment was conducted as factorial based on completely randomized block design in 4 replicates in the Research Farm of Agricultural, Medical and Industrial Research School in Zaferaniyeh-Karaj-Iran the first factor included 5 genotypes of wheat (Tabasi-the maternal entity, T-65-7-1, T-65-5-1, T-6-67-60, T-65-58-8) and the second factor consisted of 4 levels of nitrogen (100, 140, 180 and 220 kg ha-1 urea 46%). The result showed that grains yield harvest index, number of grain/spike in mutant lines and their parent had significant difference (p<0.01) in mutant genotypes, meanwhile, the biological yield and the number of spike m-2 were not significant difference (p<0.05). The harvest index, number of grains per spike, grains yield, biologic yield and number of spikes m-2, weight of 1000 grains didnt affected by applying different levels of nitrogen fertilizer.]]>Aminpour, A. A. Gharib, N. Ghiassie and N. Soltanpour,20002000Altman, D.W., W.L. Mccuistion and W.E. kronstad, 1983758791Arzani, A., 19991999Ayoub, M., S. Guertin, S.L. Lussier and D.L. Smith,199434748756Camberato, J.J. and B.R. Back,199082467473Campbell, C.A., F. Selles, R.P. Zenter and, B.G. Mcconkey,199385114120Day, A.D., E.B. Tackson and A. Alemu,197870279282Emam, Y. and M. Niknejad,19951995Ezat Ahmadi, M.H., A.K. Kazemi, M.R. Shakiba and M. Valizadeh, 19981998Fischer, R.A., 1993335780Guangzu, S.,19893346Imam, Y.,20032003Khalaj, M.A., J. Seyfy and M. Neishabouri,20012001Majd, F., and M.R. Ardakani,20032003Merhrvar, M.R., 20042004Mossedaq, F. and D.H. Smith,199486221226Musick, J.T., O.R. Jones, A.B. Stewart and D.A. Dusek,199486980986Noor Mohammadi, Gh., A. Siadat and A. Kashani,20012001Pearman, I., S.M. Thomas and G.N. Thorne, 1987913145Wahhab, A. and I. Hussein, 195749116119Zebarth, B.J. and R.W. Sheard,1992722125Zillmann, E., S. Graeff, J. Link, W. Batchelor and W. Claupein,200698682690Alcoz, M.M., F.M. Hons and V.A. Haby,19938511981203Boquet, D.J. and C.C. Johnson,198779135141Gale, M.D.,1986pp: 655-674pp: 655-674Gaul, H.A., 19661966Jorbruksverket, 20042004Kubba, A.J. and I.F. Ibrahim,19896634100Mascangi, H.J. and W.E. Sabbe,19911410911103Samboomnarman, S., M.S. Nuik and N.B. Das,198830347359Heyne, E.G.,1984