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Paper Information

Journal:   IRANIAN JOURNAL OF AGRICULTURAL SCIENCES (JOURNAL OF AGRICULTURE)   2007 , Volume 38-1 , Number 2 (AGRONOMY AND CROP BIOTECHNOLOGY); Page(s) 259 To 266.
 
Paper: 

A COMPARISON OF VARIETIES OF WHEAT (TRITICUM AESTIVUM L. ) IRRIGATED AT DIFFERENT LEVELS OF IRRIGATION IN FIROOZABAD REGION OF FARS PROVINCE

 
 
Author(s):  SHAMOHAMMADI N.*, MAZAHERI D.
 
* ISLAMIC AZAD UNIVERSITY OF ARSANJAN
 
Abstract: 

In order to study the effect of different irrigation levels on yield and yield components of three wheat cultivars, a field experiment was conducted in Firoozabad, Fars in 2003-2004 growing season. The experiment design was a split-plot one arranged in randomized complete block of four replications. Main plots consisted of four irrigation levels ( I1=every 8, I2= 12 I3= 16, and I4= every 20 days) subplots consisted of three wheat cultivars (V1= Marvdasht, V2=Star, and V3=Darab-2 ). The results showed that Darab-2 with a higher number of grain per spike, and 1000 grain weight, produced higher dry matter as well as higher grain yield. Also, this cultivar exhibited a higher CGR than the other two cultivars. In a comparison between Marvdasht and Star cultivars, it was determined that Marvdasht was superior in a majority of traits. It was determined that the number of grain per spike as well as 1000-grain weight were more sensitive to limited irrigation than the number of spikes per square meter trait. Physiological growth indices decreased with increasing irrigation intervals. Interaction of cultivar x irrigation intervals showed that Darab-2 was superior at all irrigation levels and produced a higher grain yield than the other two. In total, it seems that Darab-2 is more tolerant to limited irrigation: it has a higher grain yield, and can be introduced as tolerant cultivar.

 
Keyword(s): WHEAT, IRRIGATION INTERVALS, YIELD, YIELD COMPONENTS, GROWTHINDICES
 
References: 
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