Ekincialp, AytekinSensoy, SuatErdinc, CeknasBitik, Selma KipcakCakmakci, OzlemGundogdu, Muttalip2026-01-302026-01-3020252458-837710.15316/selcukjafsci.1706391https://doi.org/10.15316/selcukjafsci.1706391https://hdl.handle.net/20.500.14720/29630This study aimed to evaluate the biochemical and color parameters of fresh flower stalks of Rheum ribes L. collected from four distinct locations in Eastern Anatolia, T & uuml;rkiye. Significant variation was observed among genotypes in terms of organic acids, sugars, ascorbic acid, antioxidant capacity, and color traits. Succinic acid was the predominant organic acid, peaking in Bah & ccedil;esaray (14718.47 mu g g-1 FW). Er & ccedil;ek accessions had the highest levels of fructose (1346.72 mu g g-1 FW), glucose (970.88 mu g g-1 FW), and total antioxidant capacity (73.97 mu mol TE g-1 FW). Muradiye samples contained the highest ascorbic acid (63.71 mu g g-1 FW), while Mount Erek showed maximum oxalic acid and chroma values. Color measurements also indicated greater vividness in Mount Erek and Muradiye accessions. Principal Component Analysis (PCA) explained 76.46% of the total variance in the first two components, effectively separating genotypes based on trait profiles. Cluster analysis confirmed these differences, grouping accessions by location with 100% bootstrap support. These results demonstrate the considerable biochemical and visual diversity of R. ribes populations across different environments, supporting their potential in food and nutraceutical applications.eninfo:eu-repo/semantics/openAccessBiochemicalColor ParametersRheum Ribes L.Wild RhubarbArticle