Effect of Deficient Irrigation on Consumptive Use of Wheat (Triticum Aestivum.L) in Arid and Semi-Arid Areas
Thamer Yahya Thamer1, Nadine Nassif2, Amira Haddarah3, Ayad H. Almaeini4

1Thamer Yahya Thamer, Ph.D Student, Lebanese University, Lebanon.
2Prof. Nadine Nassif, Lebanese University, Lebanon.
3Dr. Amira Haddarah, Lebanese University, Lebanon.
4Prof. Ayad H. Almaeini, AL- Qasim Green University, Iraq.
Manuscript received on 05 June 2019 | Revised Manuscript received on 30 June 2019 | Manuscript Published on 04 July 2019 | PP: 730-735 | Volume-8 Issue-1S4 June 2019 | Retrieval Number: A11350681S419/2019©BEIESP
Open Access | Editorial and Publishing Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The experiment, located at the Yusufiyah region, 15 km South-West of Baghdad (44 o18’75” E and 33o07’84” N) (34.1 m above sea level), soil classified as Typic Torrifluvent as Silty Clay The objectives of the study were to test the response of wheat (Triticum aestivum.L) to limited irrigation under field conditions and to estimate Total actual water consumptive use and actual water consumptive use were studied during the growth stages, field water use efficiency and crop water use efficiency and yield were calculated. A Randomized complete block design (RCBD) was used with three replications. Irrigation treatments includes complete irrigation as a control, deficient irrigation at tillering, elongation, flowering and grain maturity. Irrigation treatments were applied at 50- 55 % depletion from available water according to growth stages. .The cultivar was planted on 1/12/2017 and harvested on 20/5/2018. Crop water requirements were calculated based on the soil water measurement by gravimetric method. Actual evapotranspiration was calculated from the soil water measurements measured for the 0-30 cm layer. The highest amount of applied water 430 mm was obtained under complete irrigation and it decreased to 356, 388,371 and 285 under limited irrigation during tillering, elongation, flowering and grain maturity respectively. Limited irrigation during the flowering stage gave the highest field and crop water use efficiency values of 1.33 and 1.27 K.g.m3- . On the other hand, treatment limited irrigation during the elongation stage gave the lowest field and crop water use efficiency values of 1.08 and 1.18 K.g.m3.
Keywords: Deficient Irrigation, Consumptive use, Water use Efficiency, Wheat.
Scope of the Article: Irrigation Informatics