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Paper Information

Journal:   IRANIAN JOURNAL OF CROP SCIENCES   SPRING 2005 , Volume 7 , Number 1; Page(s) 1 To 20.
 
Paper: 

STUDY ON THE EFFICIENCY OF AMMI METHOD AND PATTERN ANALYSIS FOR DETERMINATION OF STABILITY IN SUGAR BEET VARIETIES

 
 
Author(s):  RANJI ZABIH ELAH, MESBAH MAHMOUD, AMIRI REZA, VAHEDI SAEID
 
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Abstract: 

In this study, efficiency of AMMI method and pattern analysis were investigated. Seventeen sugar beet varieties were studied in thirteen locations over three cropping seasons and root yield and sugar content were measured. On the basis of combined analysis of variance, effect of variety and variety ´environment interactions for both traits were significant. The yield stabitity estimated-using Eberhart and Russell, Wricke’s Ecovalance, Shukla’s stabilty variance, AMMI and pattern analysis methods. In all stability methods used, varieties PP8, BR1(developed is Ardabil) and IC1 were the most stable genotypes. Efficiency of Eberhart and Russell’s method for estimating of G ´ E interaction for both traits was lower than IPC1 in AMMI method. The efficiency of IPC1 was greater, by five to six times, than that of Eberhart and Russell’s method for root yield and sugar content, respectively. SIPC3 in AMMI method were accounted about 50 % of G ´ E interaction sum of squars. Biplot of IPC1 and the mean of traits for varieties and locations or environments had good efficiency for detecting of G ´ E interaction patterns. Ranked correlation coefficients showed that AMMI method often generated more information than the other methods. Furthermore, this method generates new information which cannot be estimated by the other methods. It seems that AMMI and pattern analysis have higher efficiency for stability studies. However, results showed that using only one component of AMMI method is insufficient, and at ٍleast two components (e.g. IPC1 and SIPCf) should be considered.

 
Keyword(s): STABILITY ANALYSIS, PATTERN ANALYSIS, SUGAR BEET, AMMI METHOD, ROOT YIELD, SUGAR CONTENT
 
References: 
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