انتخاب ژنوتیپهای جو بر اساس سازگاری خصوصی و عمومی در آزمایش مقایسه عملکرد یکنواخت مقدماتی منطقه گرم

In order to determine the yield stability and genotype × environment interactions, this experiment was study on quantitative traits of 140 barley lines/varieties (including four local controls) in a preliminary yield trial.This experiment was planted in four stations of warm regions including Ahwaz, Zabol, and Gonbad and Darab in 2011-2012. Genotypes in each experiment were planted in a single plot without any replication but controls were replicated in the intervals of each five plots . In this experiment, based on grain yield average, superiority to the controls as well as using non-parametric stability parameters such as mean rank of the yield in different locations (R) and standard deviation of the rank (SDR) and also good agronomic traits such as early maturity and lodging 18 genotypes with general adaptability were chosen to be retested in the warm zone’s Advanced Barley Yield Trial in the following cropping season in all stations (ABYT-1). Genotypes with good performance in only one station supposed to have specific adaptability and were selected to be retested in the warm zone’s Advanced Barley Yield Trial in the same location or stations with a similar climate (ABYT-2).