Abstract

In order to evaluate the beneficial treatments of ten Achillea santolina accessions, some yield characters were investigated. This experiment was carried out using a randomized complete block design with three replications. The factor studied included yarrow genotypes that were collected at the initial stage of flowering. The analysis of variance genotypes showed that all treatments except the leaf length were significant at different levels (5 or 1% levels). Plant height was significant (p ≤ 0.01) of two genotypes of As6 and As8 which had the highest mean. Genotype As9 had the highest means in leaf width; plant wet weight, plant dry weight, and plant width and plant length. Two genotypes As3 and As1 which were gathered from Lorestan and Kurdistan provinces, respectively owned the highest mean of essential oil content (0.2 and 0.19%, respectively). Considering the amount of essential oil in each genotype from each province, we can say that this feature varied with location with western Iran having the highest. This study provides basic information for effective conservation and introduction of some particular traits of these accessions breeding programs.

Key words: Achillea santolina, essential oil content, morphological.