Journal of Food, Agriculture and Environment




Vol 9, Issue 1,2011
Online ISSN: 1459-0263
Print ISSN: 1459-0255


Water productivity and water use efficiency of sunflower under conventional and limited irrigation


Author(s):

Mohammad Albaji 1, Saeed Boroomand Nasab 1, Majid Behzad 1, AbdAli Naseri 1, Ali Shahnazari 2, Moosa Meskarbashee 3, Faramarz Judy 1*, Mehdi Jovzi 1, Ali Reza Shokoohfar 4

Recieved Date: 2010-09-25, Accepted Date: 2011-01-12

Abstract:

This study was carried out to understand the effects of conventional irrigation (CI), regulated deficit irrigation (RDI70 and RDI50) and partial root zone drying (PRD70 and PRD50) treatments on water productivity and water use efficiency of sunflower in the Ahwaz Plain, Iran. Irrigation water productivity for seed yield (WP(Ir)Y) and water use efficiency for seed yield (WUE(Y)) were not significantly affected by conventional and limited irrigation treatments. In this study, the highest (WP(Ir) Y) was obtained by limited irrigation treatments (RDI50, PRD50 and RDI70 treatments, with mean 11.62, 11.37 and 11.12 kg mm-1, respectively.), whereas the lowest (WP(Ir)Y) was obtained from the CI treatment (10.74 kg mm-1). The maximum WUE(Y) was related to RDI50, PRD50 and RDI70 treatments, averaged 13.88, 13.59 and 13.29 kg mm-1, respectively. The minimum one was also associated with CI treatment. averaged 12.48 kg mm-1. It is concluded that the CI treatment is the best choice for maximum yield under the local conditions, but this irrigation scheme must be re-considered in areas where water resources are more limited.

Keywords:

Sunflower, water productivity, water use efficiency, conventional irrigation, regulated deficit irrigation, partial root zone drying


Journal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 1
Category: Agriculture
Pages: 202-209


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