Comprahansion of wheat evapotransprations measured by micrometeorological and lysimeter methods

This study was carried out in the research and application area of Department of Agricultural Structures and Irrigation, Faculty of Agriculture, University of Çukurova between 2009 and 2010.The actual evapotranspiration of rainfed wheat was measured by using Bowen ratio energy balance and lysimeter methods. The evapotranspiration of rainfed wheat was 321 mm and 376 mm for the Bowen ratio energy balance and lysimeter methods, respectively.In this study the value of grain yield was determined as 480 kg/da and the amount of dry matter was determined as 2489 kg/da. Harvest index (HI) was calculated as a value of 0.19.The linear relationships were obtained between cumulative evapotranspiration values of Bowen and lysimeter with dry matter as regration coefficient R= 0.97.There was obtained statistically close relationships between Lysimeter and Bowen Evapotranspiration values as a confidence 99% (R=0.93).