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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2006 , Volume 16 , Number 3; Page(s) 23 To 32.
 
Paper: 

APPLICATION OF DEFICIT IRRIGATION ON ADVANCED BARLEY GENOTYPES

 
 
Author(s):  MAHLOUJI M.*, MAMANPOUSH A.R., JAFARI A.A.F.
 
* ESFAHAN RESEARCH CENTER OF AGRICULTURE AND NATURAL RESOURCES, ESFAHAN, IRAN
 
Abstract: 

Deficit irrigation technique is a type of irrigation management that leads to save water without damaging plant and economic loss in yield. This experiment was conducted during 2003-2004 in order to study the effects of deficit irrigation on five advanced barley genotypes at Kaboutarabad Station of Esfahan, Iran. Experimental design was a randomized complete block with split-plot arrangement. The main-plots comprised five irrigation treatments as tradition irrigation in the area (five irrigations per season) as control, 10, 20, and 30 percent reductions in seasonal irrigation depth relative to the control. The sub-plots were five advanced barley genotypes as Karoonx Kavir, Valfajre, M-79-4, M-79-7 and M-79-15. Analysis of variance showed that deficit irrigation had significant effects (P<0.05) on the number of days to spike emergence, numbers of spikes per unit area, grain yield and harvest index. Deficit irrigation had no significant effect on plant height, peduncle length and spike length. All of the measured characters were significantly (p<0.01) influenced by the type of genotype. Highest grain yield (7392.9 kg/ha) was produced by M-79-4 line. Water use efficiency of this line was 1.47 Kg/m3. The 20% deficit irrigation treatment produced the highest water use efficiency (1.35 Kg/m3).

 
Keyword(s): BARLEY GENOTYPE, DEFICIT IRRIGATION, WATER USE EFFICIENCY, YIELD
 
References: 
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  Persian Abstract Yearly Visit 67
 
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