تجزیه مرکب لاین‌های برتر گندم نان مناطق معتدل (M-90) در استان کرمانشاه

Abs. One of the main purposes in plant breeding is introduction of new varieties with high yield potential, resistance to pests and diseases and adverse environmental conditions.In order to investigate advanced bread wheat lines for introducing new cultivar and replace existing varieties, sixteen advanced bread wheat lines as well as Parsi and Sivand cultivars as check were examined in a randomized complete block design with three replications in Islam Abad Agricultural Research Station during two years from 2011-2012 and 2012-2013. Area equal to 6 square meters plot and consists of six nesting density was 400 seeds per square meter. Planting and irrigation was performed on the 27th of November. The results of combined analysis showed significant differences between treatments at 1%. Duncan’s grouping of data showed that four lines M-90-9, M-90-16, M-90-18 and M-90-7 had the highest mean yield and assigned to a group. Other agronomic characteristics of this group were diseases tolerant particularly resistant to rust, medium plant height earliness and should be noted that a safe alternative for old cultivars. The history of this group showed that the test farm breeding in PRWYT in 2009-2010 and ARWYT in 2010- 2011 was better lines. These three lines were selected for breeding and introduced varieties for further experiments.