Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2008.92.97MohammadkhaniNayer HeidariReza 12008111Responses of growth and germination
to water stress induced by PEG 6000 and NaCl in two maize (Zea mays
L.) cultivars 704 and 301 were studied. Water stress was generated by
additions of PEG 6000 or sodium chloride to the root medium. Water potentials
were: zero as control and -0.15, -0.49, -1.03 and -1.76 MPa as treatments.
After 24 h treatment, the roots and shoots length and dry weight were
of plants determined. In water stress, roots and shoots length and dry
weight decreased at both treatments in both varieties. The germination
is inversely proportional to the NaCl and PEG concentrations, it means
that 704 and 301 cultivars of maize showed a reduction in germination
with an increasing in NaCl or PEG concentrations induced water deficit,
but this reduction in NaCl treatment were higher than PEG treatment. At
treatment by PEG, the germination was severely decreased at -1.03 MPa.
At treatment by NaCl no germination occurred at -1.03 in 301 var. and
germination was very low at -1.03 MPa in 704 var., no germination occurred
at -1.76 MPa in both varieties at both treatments. Decrease of germination
in 704 variety was higher than 301 variety. ]]>Adegbuyi, E., S.R. Cooper and R. Don,19819867878Almansouri, M., J.M. Kinet and S. Lutts,2001Triticum durum Desf.).]]>231243254Bansal, R.P., R.P. Bhati and D.N. Sem,198022327331Bewley, J.D. and M. Black,1994Braccini, A.L., H.A. Ruiz, M.C.L. Braccini and M.S. Reis,1996181016Braga, L.F., M.P. Sousa, J.F. Braga and M.E. Sa,19992195102Brasil, L.,19921992Michel, B.E. and M.R. Kaufmann,197351914916Carvalho, N.M. and J. Nakagawa,19883rd Edn.,Cordoba, G.A.T., E.E.L. Borges, R.C.G. Borges and J.C.L. Neves,1995Esenbeckia leiocarpa Engl (guaranta).]]>17217226Fletcher, R.A., M. Santakumari and D.P. Murr,198847360364Hohl, M. and P. Schopfer,199195716722Khajeh-Hosseini, M., A.A. Powell and I.J. Bingham,200331715725Kramer, P.J.,197454463471Kramer, P.J. and J.S. Boyer,19951st Edn.,pp: 491-495pp: 491-495Krzyzanowski, F.C.,199121114Marur, C.J., L. Sodek and A.C. Magalhaes,19946103108Mayer, A.M. and A. Poljakoff-Mayber,19894th Edn.,Murillo-Amador, B., R. Lopez-Aguilar, C. Kaya, J. Larrinaga-Mayoral and A. Flores-Hernandez,2002188235247Mwale, S.S., C. Hamusimbi and K. Mwansa,2003Helianthus annuus L.) in response to osmotic seed priming.]]>31199206Nassiff, S.M.L. and S.C.J.G.A. Perez,1997Pterogyne nitens Tul.): Influencia dos tratamentos para superar a dormencia e profundidade de semeadura.]]>19171178Neuman, P.M.,19953512581266Neumann, P.,19972011931198Money, N.P.,198991766769Oertli, J.J.,1985121295300Sadeghian, S.Y. and N. Yavari,2004190138144Santos, V.L.M., A.C. Calil, H.A. Ruiz, E.M. Alvarenga and C.M. Santos,199214189194Shalhevet, J., M.G. Huck and B.P. Schoeder,199587512517Smith, J.A.C. and H. Griffiths,1993pp: 331-332pp: 331-332Steuter, A.A., A. Mozafar and J. Goodin,1981676467Therios, I.N.,1982Prunus amygdalus cultivar truoito.]]>10585594Thill, D.C., R.D. Schimman and A.P. Appeby,197971105108Torres, S.B., E.L. Vieira and J.M. Filho,2000223944Turner, N.C.,199658293338Van der Mozel, P.G. and D.T. Bell,1987 Eucalyptus and Melaleuca species.]]>15239246Van-der-Weele, C.M., W.G. Spollen, R.E. Sharp and T.I. Baskin,2000Arabidopsis thaliana seedlings under water deficit studied by control of eater potential in nutrient-agar media.]]>5115551562Verslues, P.E., E.S. Ober and R.E. Sharp,199811614031412Verslues, P.E. and E.A. Bray,200413628312842Wenkert, W., E.R. Lemon and T.R. Sinclair,197870761764Wilson, D.R., P.D. Jamieson, W.A. Jermyn and R. Hanson,1985Pisum sativum L.).]]>1985