Effect of irrigation regime and method of strip irrigation system on yield, yield components and water use efficiency of cotton under drought stress conditions of Orzouiyeh region of Kerman province in Iran
Year: 2011
Type: article
Abstract: Deficit irrigation is one of the most important methods of management of irrigation to save irrigation water without much damage to plants. Field experiment was conducted in 2010 to study the effect of irrigation deficit and method of irrigation on yield and yield components and water use efficiency of cotton in Orzouiyeh region of Kerman province of Iran. Treatments consisted of three levels of water requirement: 100, 80 and 60% as main factors and two systems of irrigation: surface drip irrigation and subsurface drip irrigation as sub factors. The study showed that under subsurface irrigation method treatment of 80% water requirement compared to treatment of 100% water requirement, there is increased water use efficiency by 4.9% with a saving of 1500 m3ha-1 water. However, 80% water treatment lead to decrease of 12% in yield, 11% in the number of bolls per plant and 2.5% in boll weight. The 60% water treatment saved 3200 m3ha-1 water (40% less consumption of water), but it resulted in a decrease of 38% in cotton yield, 37% in the number of bolls per plant and 24% in boll weight. In general use of 80% water deficit method in cotton cultivation using subsurface irrigation could help in saving of irrigation water and increasing water use efficiency under drought conditions prevailing in Orzouiyeh region of Kerman province of Iran.
Key words: Cotton, irrigation deficit, irrigation strip, Kerman, water use efficiency, yield.
Source: Scientific Research and Essays
DOI: 10.5897/sre11.1435
Author: Rasoul Asadi
Language: English
Subfield: Soil Science
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W2149680263