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Yield stability of chickpea in dryland conditions

Chickpea (Cicer arietinum) is second important crop in rainfed areas of lran.The areas under cultivation of this crop is about 700000 ha annualy. Present investigation carried out to determine high seed yield chickpea varieties with high adaptation for different rainfed areas of Iran. En this study 14 chickpea lines and varieties along with a check variety (Jam) were cultivated in randomized complete block design with 4 replications in 5 areas viz., Kermanshah, Elam, Uromieye, Gachsaran and Gorgan during 1998-2002. There was not information for all 5 areas in 4 years so the combination of locations and years was called as environment and totally 15 environments were studied. Bartilet test showed heterogencity of error variances among environments so, 15 environments were divided to 3 groups so that in each group there was homogenity in error variances. Combined analysis for yield showed that in group 1, 2 and 3 the genotype environment interaction was significant. Stability analysis by Ebrthart and Russel method showed that ELC482, Flip 84-42 and Flip 84-80 had high seed yield more than check and regression coefficient in these genotypes were near to 1. Among these 3 genotypes ELC482 showed the highest stability with high seed yield. This line was recommended for Gorgan and Gachsaran. En group 3 Flip 86-50, Flip 84-42 and Flip 90-96 had high seed yield with regression coefficient near to 1. Among these 3 lines Flip 84-42 showed the highest stability with high seed yield. This line recommended for Kermanshah, Ilam and Uromieye. En group I this line showed also high seed yield in this group.