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TY - JOUR AU - Zigene, Zewdinesh Damtew AU - Asfaw, Bizuayehu Tesfaye AU - Bitima, Tesfaye Disasa PY - 2023/02/17 Y2 - 2025/09/23 TI - Morpho-agronomic variability, traits association and path analysis in Rosemary (Salvia rosmarinus Schleid.) genotypes from Ethiopia JF - Research in Plant Biology JA - RIPB VL - 13 IS - SE - Articles DO - 10.25081/ripb.2023.v13.8128 UR - https://www.updatepublishing.com/journal/index.php/ripb/article/view/8128 SP - 1-10 AB - <p>Forty-five rosemary genotypes collected from different parts of Ethiopia were evaluated for quantitative morphological traits to estimate the genetic variability, heritability and association of characters. The genotypes displayed significant differences for all of the studied traits, showing the presence of wide variability among the tested genotypes. The genotypic and phenotypic coefficients of variation were found to be medium and high for all growth and yield traits except for leaf length. Moderately high to high broad-sense heritability (0.66 -0.97) coupled with moderate to high genetic advance as a percent of the mean (10.37 -79.14) values were found for all traits.  Correlation coefficient and path coefficient analysis revealed that characters vis. branch number plant^-1, fresh leaf weight plant^-1, dry leaf weight plant^-1, fresh leaf yield ha^-1, and essential oil content had a high positive direct effect and significant positive association with essential oil yield ha^-1. Thus direct selection for these traits would be quite effective for essential oil yield enhancement in rosemary. In general, the studied accessions were diverse in nature and could be exploited in the conservation, breeding and commercialization of the crop.</p> ER -