Studies regarding the behavior of some species of Sedum under the stress conditions induced by roof culture

Abstract

The principles of green roof landscaping, essential in developing cultivating projects, can be successfully applied knowing the full characteristics of the species that are used. Taking this into consideration, the main objective of this research is to enrich the assortment of ornamental used in the landscaping of the green roofs with new species, resilient to the stress caused by the existing cultures present on roofs. The biological material used was composed of 108 mature specimens of Sedum spurium ‘Fuldaglut’ and Sedum reflexum ‘Angelina’ cultivated in 3 types of substrate in containers, placed on the roof. Analyses carried out in the experiment have shown the ability to adapt to the stress conditions of the two species of Sedum by determining peroxidase and catalase activity. As a result of the study performed we were able to determine which of the two species is more adaptable to the roof culture, and also the adequate substrate for elaborating the cultivating schemes