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Paper Information

Journal:   IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)   2010 , Volume 41 , Number 2; Page(s) 395 To 402.
 
Paper: 

ASSESSMENT OF GENOTYPE × ENVIRONMENT INTERACTION AND STABILITY OF YIELD IN ADVANCED BARLEY LINES IN RAIN FED CONDITIONS

 
 
Author(s):  VAEZI B.*, AHMADI JAFAR
 
* AGRICULTURAL RESEARCH CENTER, GACHSARAN
 
Abstract: 

Selection of high yielding varieties with proper stability is an important objective in crop, including barely breeding programs especially in rain fed and arid areas. Also an evaluation of G×E interaction is indispensable for releasing of new and stable varieties for different regions. In this research, to study the stability and adaptability of grain yield in warm and semi-warm dry land areas, eighteen advanced lines of barely with a check (LB) cultivar were compared on four locations in Moghan, Gorgan, Gachsaran and Kouhdasht Experimental Stations during 2005 - 2007 cropping seasons. The experimental designs in all the locations and years were completely randomized block ones with four replications. Combined analysis of variance showed that the effect of variety and year × location × variety interaction were significant. All the stability analysis methods were tested in this research. Lines No. 2, 12, 18, through Eberhart Russell regression model using non-significant coefficient of regression and minimum variance of deviation from linear regression, were found out as the most stable lines. The line No. 11 (based on Lin & Binns within location variance), and lines No. 14, 11 and 1 (using non-parametric method of Rank) were recognized as the most stable lines. Consequently, lines No. 11, 2 and 18 were selected because of high yield as well as stability using different methods with yields of 4122, 4096 and 3943 kg/ha of grain, respectively.

 
Keyword(s): BARLEY, HIGH YIELD, STABILITY, ADAPTABILITY
 
References: 
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