Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2002.287.291IstanbulluogluAhmet KocamanIsrafil KonukcuFatih 3200253The study was conducted to investigate times of irrigation, seasonal evapotranspiration,
water use-production function and yield response of maize (Zea mays)
to water under Tekirdag climatic conditions in Turkey. Sandoz-PX 74 variety
of maize was used. Eight irrigation treatments were designed considering different
combinations of irrigation application at three growth stages, vegetative (V),
tasseling (T) and cob (T) together with no irrigation application (NoI). VTC
treatment (irrigation at vegetative, tasseling and cob stages) was the control
treatment. The highest seasonal evapotranspiration was calculated in VTC treatment,
with the least water stress, as 586 mm. The highest monthly evapotranspiration
was 217 mm in July. Maize yield for this treatment was 9920 kg ha‾1.
The seasonal yield response factor, ky, was 0.76 and tasseling stage
was the most sensitive to water stress. Control treatment might be practiced
to realize the highest yield however TC treatment, with two irrigations, can
be applied without major yield reduction instead of three. By this way, 26.3
% of irrigation water is saved against only 2.7 % yield reduction.]]>Anonymous,1984pp: 625-630pp: 625-630Bakanogullari, F.,19951995Baser, I.,19931993Evren, S. and A. Istanbulluoglu,1995Heerman, D.F.,1985Howell, T.A.,1988Kanber, R., O. Tekinel, R. Bastug, S. Onder and N. Baytorun,19891989Kanber, R., A. Yazar and M. Eylem,1990Kun, E.,1985Ogretir, K.,1994Pandey, R.K., J.W. Maranville and M.M. Chetima,2000461527Stewart, J.L., R.E. Danielson, R.J. Hanks, E.B. Jackson and R.M. Hagan et al.,19771977Tulucu, K.,19851985Ul, M.A.,19901990Unger, P.W.,198246157168Uzunoglu, S.,1991Yildirim, O., S. Kodal, M.F. Selenay and Y.E. Yildirim,19951995Yildirim, Y.E.,19931993Rhoads, F.M. and J.M. Bennet,19901990pp: 569-597pp: 569-597