Crop Coefficients of Winter Wheat under South Serbia Conditions


  • Miroljub Aksić University of PriÅ¡tina, Faculty of Agriculture LeÅ¡ak, Kopaonička Street bb 38219 LeÅ¡ak, Serbia
  • Gordana Å ekularac
  • NebojÅ¡a Gudžić
  • Jasmina Knežević
  • SlaviÅ¡a Gudžić
  • Tanja JakiÅ¡ić


Winter Wheat, Crop Coefficient, Potential Evapotranspiration, Irrigation


Field trials with irrigation of winter wheat have been set in the river valley of Southern Morava, near Niš, at the alluvium soil type, in the period 2009-2011. Irrigation was carried out by sprinkler irrigation method, and its term was determined by observing dynamics of soil moisture down to 60 cm of depth. Considering both investigated years, the highest grain yield of winter wheat was reached at the irrigated variant with pre-irrigation soil moisture 70% of FWC (8678 kg ha-1 and 9180 kg ha-1), and for that reason the observed values of ET at this variant from 381.1 to 393.1 mm represent potential evapotranspiration (PET) or CWR of winter wheat for the conditions of southern Serbia. The values of Kc ini (0.53), Kc mid (1.10) and Kc end (0.28) obtained by our experimental study are different from those developed for other areas. The development of regionally based Kc exceptionally helps in irrigation management and gives precise application of water in these areas.


Allen, R. G., Pereira, L. S., Raes, D., Smith, M., “Crop Evapotranspiration—Guidelines for Computing Crop Water Requirementsâ€, Irrigation and Drainage, Paper No. 56. FAO, Rome, Italy. pp 300, 1998.

Annandale J.G., Stockle, C.O., “Fluctuation of crop evapotranspiration coefficients with weather. A sensitivity analysisâ€, Irrigation Science, 15, 1–7, 1994.

Balwinder-Singh, Eberbach P.L, Humphreys E., Kukal, S.S., “The effect of rice straw mulch on evapotranspiration, transpiration, and soil evaporation on irrigated wheat in Punjab, Indiaâ€. Agricultural Water Management, 98(12), 1847-1855, 2011.

BoÅ¡njak, Ä., “Navodnjavanje poljoprivrednih usevaâ€. Poljoprivredni fakultet, Novi Sad, 181-186, 1999.

Bruce J.A., “Does transpiration control stomatal responses to water vapour pressure deficitâ€, Plant Cell Environ., 20, 136–141, 1997.

Cavazza L., “Valutazione dell’evapotraspirazione delle colture. Evapotraspirazione: chiarimenti concettuali preliminaryâ€, In: Proceedings of the Meeting “Irrigazione e Ricercaâ€, pp. 97–102, 1991.

Conceição, N., Paço, T., Silva, A., Ferreira, M., “Crop coefficients for a pear orchard (Pyrus communis L.) obtained using eddy covarianceâ€. Acta Horticulturae 792:187-192, 2008.

Cornic G., Massassi, A., “Leaf photosynthesis under drought stressâ€, In: Baker, N.R. (Ed.), Photosynthesis and the Environment. Kluwer Academic Publishers, The Netherlands, 1996.

Doorenbos, J., Kassam, A.H., “Yield response to waterâ€. FAO Irrigation and Drainage Paper No. 33, FAO, Rome, Italy. 193 pp, 1979.

Doorenbos, J., Pruitt, W. O., “Crop water requirementsâ€. Irrigation and Drainage Paper No. 24, FAO, Rome, Italy. 144 p, 1977

Doorenbos, J., Pruitt, W. O., “Guidelines for Predicting Crop Water Requirementsâ€. Irrigation and Drainage, Paper 24 FAO of UN, Rome, Italy, 1984.

García Petillo, M., Castel, J., “Water balance and crop coefficient estimation of a citrus orchard in Uruguayâ€. Spanish Journal of Agricultural Research 5:232-243, 2007.

Haijun, L., Lipeng, Y., Yu, L., Xiangping, W., Guanhua, H., “Responses of winter wheat (Triticum aestivum L.) evapotranspiration and yield to sprinkler irrigation regimes. Agricultural Water Management 98:483-492, 2011.

Jaćimović, G., “Optimiranje mineralne ishrane pÅ¡enice u zavisnosti od vremenskih uslova godineâ€. Doktorska disertacija, Univerzitet u Novom Sadu, Poljoprivredni fakultet, Novi Sad, Srbija, 2012.

Kang, S., Gu, B., Du, T., Zhang, J., “Crop coefficient and ratio of transpiration to evapotranspiration of winter wheat and maize in a semi-humid regionâ€. Agricultural Water Management, 59, (3), 239–254, 2003.

Ko J., G. Piccinni, T. Marek, T. Howell, “Determination of growth-stage-specific cropcoefficients (Kc) of cotton and wheat“ Agricultural Water Management, 96, 1691-1697, 2009.

Liu, C., Zhang, X., Zhang, Y., “Determination of daily evaporation and evapotranspiration of winter wheat and maize by large-scale weighing lysimeter and micro-lysimeterâ€. Agricultural and Forest Meteorology, 111, (2), 109–120, 2002.

Luchiari, A.J.R., Riha, S.J., Gomide, R.L., “Energy Balance in Irrigated Wheat in the Cerrados Region of Central Brazilâ€. Scientia Agricola, Piracicaba, 54, 78-88, 1997.

Paço, T., Conceição, N., Ferreira, M., “Measurements and estimates of peach orchard evapotranspiration in Mediterranean conditionsâ€. Acta Horticulturae 664:505-512, 2004.

Piccinni G., Ko, J., Marek, T., Howell T., “Determination of growth-stage-specific crop coefficients (Kc) of maize and sorghumâ€, Agricultural Water Management, 96, 1698-1704, 2009.

Pruitt, W.O., “Traditional methods 'Evapotranspiration research priorities for the next decadeâ€. ASAE Paper No. 86-2629. 23 p, 1986.

Republic Hydrometeorological Servis of Serbia, “MeteoroloÅ¡ki godiÅ¡njaci – klimatoloÅ¡ki podaciâ€. Available at (accessed April 2015).

Savva, A.P., Frenken, A.,“Crop Water Requirements and Irrigation Scheduling†FAO, Harare, pp 122, 2002.

Snyder, R.L., Lanini, B.J., Shaw, D.A., Pruitt, W.O., “Using reference evapotranspiration (ETo) and crop coefficients to estimate crop evapotranspiration (ETc) for agronomic crops, grasses, and vegetable cropsâ€. Cooperative Extension, Univ. California, Berkeley, CA, Leaflet No. 21427, 12 p, 1989.

Tarantino E., Onofrii, M., “Determinazione dei coefficienti colturali mediante lisimetriâ€. Bonifica, 7, 119–136, 1991.

VuÄić, N., “Navodnjavanje poljoprivrednih kulturaâ€. Poljoprivredni fakultet, Novi Sad, 223-232, 1976.

Wright, J.L., “New evapotranspiration crop coefficientsâ€. Journal Irrigation and Drainage Div., ASCE, 108(IR2): 57-74, 1982.




How to Cite

Aksić, M., Šekularac, G., Gudžić, N., Knežević, J., Gudžić, S., & Jakišić, T. (2015). Crop Coefficients of Winter Wheat under South Serbia Conditions. Asian Journal of Agriculture and Food Sciences, 3(2). Retrieved from