2023-04-052023-04-05202120734395https://doi.org/10.3390/agronomy11071347http://146.190.124.33/handle/123456789/5878The present study assessed the behavior of four clones of Arundo donax L. (giant reed) as a perennial rhizomatous grass of increasing interest due to its high biomass production and great adaptability to stress conditions. In this study, a molecular, physiological, and biomass characterization was performed in greenhouse conditions on four Mediterranean clones. The majority of physiological and biomass parameters were not significantly different between clones. However, it was possible to observe large differences in the chromosome count for the four clones. In this way, we detected different numbers of chromosomes for each clone (98 to 122), but surprisingly, no correlation was observed between their chromosome numbers and their physiological and biomass responses. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.enginfo:eu-repo/semantics/article