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چکیده
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The development of new summer savory (Satureja hortensis L.) varieties in genetic improvement programs requires well- structured methods for managing trait interrelationships. This study employs correlation coefficients and path analysis to identify the relationships between plant dry weight performance in summer savory and various morphological traits. Twenty-nine genotypes were cultivated to determine the key components influencing yield performance. The correlation analysis revealed positive and significant associations between plant dry weight and root. Essential oil content demonstrated no significant positive or negative association with other measured traits, except for a connection with leaflets per main stem. Plant height and stem length exhibited positive, significant associations with internode distance, leaf area in the leaves located in the main and lateral branches, and leaf area of lateral branch leaves. Conversely, these traits were negatively associated with root length, leaflets per main stem, and root dry weight. Path analysis identified stem length and root dry weight as primary traits with direct positive impacts on plant dry weight performance. These findings were validated using the bootstrapping method, which confirmed the significant association between plant dry weight and other morphological characteristics. Additionally, certain traits such as plant height, root length, internode distance, and leaflets per main stem were classified as secondary, tertiary, and quaternary order variables, underscoring their notable influence on yield performance. Thus, the traits most strongly related to yield performance include root characteristics, plant height, and leaflets. These findings can inform the genetic improvement processes aimed at enhancing yield performance.
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