Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2007.2880.2884Sadat NooriS. AhmadKhalajHamideh RadA. Hosein ShiraniAlahdadiIraj AkbariGh. AbbasAbadiM. Reza Labafi H.1220071017The laboratory experiment was a factorial based on a Completely Randomized Design with four replications during 2005. Factors included two irrigation levels (normal irrigation (irrigation after 60 mm evaporation from class a pan) and less irrigation in padding stage and after it) and six winter cultivars (Licord, Okapi, Orient, SLMO64, Zarfam and Opera). The seeds used in this experiment produced under less irrigation (moderate drought stress) and they were three months in storage. The seed vigor was tested in laboratory experiment by three vigor tests, including Standard Germination test, cold test, Accelerated Ageing Test. Result showed that the accelerated aging test had significant differences on all of character in this study. Mean Comparing, showed canola cultivars had significant effect on Root/ Shoot ratio, abnormal seedling, hard seed, seedling fresh weight, MTG and FGP. Less irrigation levels had significant effect on total and shoot length, ratio root/shoot length and MTG.]]>Abba, E.J. and A. Lovato,1998Zea mays L.) seed viability and vigour.]]>27101114Anonymous,20072007AOSA (Association of Official Seed Analysts),1988pp: 93pp: 93Elias, S.G. and L.O. Copeland,1997197887Ellis, R.H., U.R. Sinniah and P. John,20002000pp: 113121Elias, S.G. and L.O. Copeland,20019310541058Ghassemi, G.K., A. Soltani and A. Atashi,199725321323Gilliland, G.C. and A.N. Hang,20032003Hunter, E.A., C.A. Glasbey and R.E.L. Naylov,1984102207213Johnston, A.M., D.L. Tanaka, P.R. Miller, S.A. Brandt, D.C. Nielsen, G.P. Lafond and N.R. Riveland,200294231240Karim, S.M.R. and R.E.L. Naylor,200154136136Machado Neto, N.B., C.C. Custudio and M. Takaki,2001Phaseolus vulgaris L.]]>29137149Mendonca, E.A., N.P. Ramos, S.A. Fessel and R. Sader,2000Brassica oleraceae L.) var.]]>22280287Perez, M.A., M.T. Aiazzi and J.A. Arguello,1994Arachis hypogaea L.) in relation to low temperatures and drought.]]>11323Phillips, N. and J. Edwards,20062006Soleimani, B.A., R. Mirzae, T.P.M. Rostami and A. Ahmadi,2000Brassica napus L.).]]>2000Stankova, P. and I. Stankov,2001T. aestivum L.).]]>38306308Tys, J. and K. Jankowski,2002238594Verma, S.S., R.P.S. Tomer and U. Verma,1999Brassica campestris) and mustard (Brassica juncea) stored under ambjent conditions.]]>69840842Verma, S.S., R.P.S. Tomer, U. Verma and S.L. Saini,2001Brassica species.]]>21148152Vieira, R.O., D.M. Tekrony and D.B. Egli,1991151221Wang, Y., J. Ying, M. Kuzma, M. Chalifoux and A. Sample et al.,200543413424