PHYSIOLOGICAL CHARACTERISTICS OF THE SPECIES RUSCUS ACULEATUS L. ADAPTED TO THE CLIMATIC CONDITIONS OF THE SOUTH-WESTAREA OF THE OLTENIA REGION-ROMANIA

Abstract

Ruscus aculeatus L. is a protected species represented by significant populations in the the southwest area of the Oltenia region.
The studies carried out in Mehedinti County, within the forests of Corcova locality, were conducted between July and September 2023, during a period characterised by minimal precipitation. In these conditions, Ruscus aculeatus plants were notably unaffected, with chlorophyll levels remaining relatively stable.
The values of photosynthesis intensity remained constant during the determinations and were not influenced by the water regime. While these values may be considered low compared to other species, they are correlated with stomatal conductance and transpiration intensity.
Despite the general intolerance of most shade plants to dry soil, Ruscus aculeatus demonstrates an exceptional ability to adapt to both shade conditions and severe drought.