Paper Information

Journal:   NEW FINDINGS IN AGRICULTURE   FALL 2007 , Volume 2 , Number 1; Page(s) 59 To 70.
 
Paper: 

COMPARISON OF BREAD WHEAT (TRITICUM AESTIVUM) GENOTYPES BASED ON DROUGHT TOLERANCE INDICES

 
 
Author(s):  BABAEI F.*, MALEKI A., CHAHARSOUGHI AMIN H., MORADKHANI H., AHMADI J.
 
* ISLAMIC AZAD UNIVERSITY, ILAM, IRAN
 
Abstract: 

In order to study yield variation of the most tolerate genotypes of bread wheat (Triticum aestivum) against drought stress an experiment was conducted using RCB design with three replications. That was done on rain fed and irrigated land in agricultural research field of Salehabad in Ilam province (2005-2006). The most common genotypes consist of five varieties; Chamran, Atrak, Zagros, Koohdasht and Chenab were studied. Considering yield in the stress and non-stress conditions drought tolerance indices including MP (mean of productivity), SSI (stress susceptibility Index), TOL (tolerance), GMP (geometric mean of productivity) and STI (stress tolerance index) were calculated. High significant positively correlated indices were determined as selection factors of high yield potential and resistant varieties. According to drought tolerance indices Zagross and Chamran variety were found as the most tolerate and Atrak and Chanab were the most susceptible varieties examined.

 
Keyword(s): BREAD WHEAT, RESISTANT INDICES, GENOTYPES, DROUGHT STRESS
 
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