Grain Yield Stability of Bread Wheat Cultivars under Irrigation in Cold and Temperate Climatic Conditions of Iran

Subject Areas : Journal of Crop Ecophysiology

M. Bakhshayeshi Geshlagh, ¹ , F. Habibi ² , H. Bakhshayeshi ³ , M. Shekarchezade ⁴ , M. Moslemi ⁵ , N. Hejrankesh ⁶ , P. Vafadar Afshar ⁷

1 - Former MSc. Student of Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
2 - Staff Member, Miandoab Branch, Islamic Azad University, Miandoab, Iran
3 - MSc Student of Soil Science, University of Urmia, Urmia, Iran
4 - Former MSc. Student of Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
5 - Former MSc. Student of Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
6 - Former MSc. Student of Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran
7 - Former MSc. Student of Plant Breeding, Tabriz Branch, Islamic Azad University, Tabriz, Iran

Received: 2010-10-03 Accepted : 2011-08-25 Published : 2011-08-23

Keywords: Grain yield, Bread Wheat, Adaptability, Environmental coefficient of variations,

Abstract :

In order to study yield stability of bread wheat cultivars including Alvand, Alamout, Zarrin, Navid, Azar 2, Sabalan, Omid and Bezostiya under irrigation an experiment was conducted in RCBD for three cropping seasons (2007-2010) at six locations. Simple and combined analysis of variances for three years, each location and also combined analysis of variances for 3 years and 6 locations were implemented. Lin and Binns parameter, environmental coefficient of variations and rank method were used for determination of stable cultivars. Results of combined ANOVA (three years x six locations) showed that interaction effect of year x location x genotype was significant. The highest grain yield belonged to the Alvand cultivar  with 3.74 tha -1. Results of stability analysis with Lin and Binns method also showed that Zarrin cultivar had the lowest within location variance for grain yield and lowest environmental coefficient of variations was belonged to cultivars Zarrin and Sabalan. The results of rank method showed that cultivars Alvand and Sabalan had the lowest rankingand cultivars Sabalan and Bezostiya had the lowest SDR among the experimental cultivars. It can be concluded that Zarrin and Sabalan cultivars had the highest yield stability and thus it can be recommended for locations in which it was studied.