Authors: Gheorghe BÂRLEA, Aurel ARDELEAN
Affiliation: “Vasile Goldis” Western University, Arad, Romania
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ABSTRACT. The living conditions offered by the sterile heaps are not favourable to the development of plants, especially if the heaps have not been placated with phytosoil. But there are a small number of species showing various degrees of tolerance towards these conditions, and that manage to grow in the respective areas (Gh. Bârlea, 2008).
Keywords: Robinia pseudacacia L., Centaurea cyanus L., Polygonum cuspidatum Sieb. et Zucc. (Reynoutria japonica Houtt.), sterile heaps, petiole, stem, aerial stem