Effect of Irrigation Regime on Wheat (Triticum aestivum L.) Yield under Shambat Conditions, Sudan

Abstract

This study was conducted with the objective of determining the
effect of application of different irrigation water amounts on the yield of
wheat grown on different seedbeds. Three irrigation water regimes
namely: 100%, 80% and 60% of crop evapotranspiration (Etc) were used
under two types of seedbeds (sowing on the flat and sowing on ridges)
over two successive seasons (2003/04–2004/05) at the Demonstration
Farm of the Faculty of Agriculture, University of Khartoum, Shambat
using a strip-split-plot design with three replications. The control was flat
sown and with no-tillage. Data were collected to determine variables
pertaining to plant population, plant height, number of tillers, leaf area
index (LAI), number of spikelets/plant and grains/spike, 1000-grains
weight, harvest index (HI), total grain yield and water use efficiency
(WUE). Results obtained revealed that, the watering regime of 60% ETc
was statistically inferior in almost all the mentioned parameters, and that
the 100% and 80% ETc had similar results in both seasons.