Study of adaptability and grain yield stability of wheat cultivars in cold and moderate-cold climate of Iran
Author(s):
Abstract:
In order to study adapatability and yield stability of irrigated bread wheat cultivars Alvand, Alamout, Zarrin, Navid, Azar 2, Sabalan, Omid and Bezostiya this experiment was conducted in RCBD during three cropping seasons (2007-2010) in six cities. Simple ANOVA and combined analysis of variance for three years in every location and also combined analysis of variance for three years and six locations were implemented. Lin and Binns parameter, environmental variance, Rick Ecovalance method and Shukla stability variance were used for determination of stable cultivars. Results of combined ANOVA (three years × six locations) showed that interaction effect of year × location × genotype was significant. The highest and lowest grain yield belonged to Alvand (3/74 tha1) and Azar 2 (2/72 tha1) cultivars. Results of stability analysis with Lin and Binns method showed that Zarrin cultivar had the lowest inside location variance for grain yield and the lowest environmental variance belonged to Azar 2 cultivar. Results of stability analysis with Shukla Stability variance method showed that Zarrin and Sabalan cultivars had the lowest Shukla stability variance, respectively. Also results of Rick Ecovalance method showed that Zarrin cultivar had the highest amount for this parameter. Zarrin and Sabalan cultivars had the lowest yield stability and can be recommended for studied locations.
Language:
Persian
Published:
Journal of Crop Improvment, Volume:13 Issue: 2, 2012
Page:
41
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