Indian Journal of Agronomy
  • Year: 2004
  • Volume: 49
  • Issue: 3

Effect of irrigation frequencies on yield characteristics of dent corn (Zea mays indentata) and water-yield relationships under semi-arid region

  • Author:
  • A. Ökten, M. Simsek
  • Total Page Count: 5
  • Page Number: 174 to 178

Department of Field Crops, Faculty of Agriculture, Harran University, 63 200, Sanlinurfa, Turkey

1Present address: Harran University, Faculty of Agriculture, Department of Irrigation, 63200, Sanliurfa

Abstract

The study was conducted to determine the best irrigation frequency and water-yield relationship for dent corn (Zea mays L. indentata) irrigated by furrow irrigation system under semi-arid conditions in 1998 and 1999 at Sanliurfa, Turkey. Water was applied to corn as 100% 90%, 80% and 70% of evaporation from Class A Pan corresponding to 2-, 4-, 6-, and 8-day irrigation frequencies, respectively. In both the years, maximum grain yield was observed at application of 10% deficit irrigation and 4-day irrigation frequency, while minimum yield was at application of 30% deficit irrigation and 8-day irrigation frequency. Total water-use efficiency (TWUE), irrigation water-use efficiency (IWUE) and crop response factor (ky) values were determined. Yield characteristics were affected negatively by 30% deficit irrigation and 8-day irrigation frequency.

Keywords

Corn, Deficit irrigation, Irrigation frequencies, Water saving