Published in Scientific Papers. Series B, Horticulture, Vol. LXIII, Issue 1
Written by Maria BRÎNZĂ, Andrei Ionuţ COCIORVA, Roberto BERNARDIS, Elena Liliana CHELARIU, Lucia DRAGHIA
The aim of the researches was to establish the upper limit of CuCl2 concentration in soils that the Dianthus superbus L. and Globularia punctata Lapeyr. species could tolerate without significantly affecting the germination and the plant sprouting process. The experiment was conducted in 4 variants of 3 repetitions, each repetition including 50 seeds. In order to moisten the substrate, water was used for the control variant and for the other three variants, solutions of different CuCl2 concentrations were used. The necessary quantity of CuCl2 was calculated, in order to obtain certain concentrations in the substrate V2 - 0.1 mM; V2 - 1 mM and V4 – 10 mM. Testing seed germination under CuCl2-polluted conditions has led to the study of all species studied to obtain a percentage of germination that decreased with increasing concentration. The increase in CuCl2 concentrations in the germination substrate in Dianthus superbus induced a slight delay in the emergence and a shift in the number of days in which the rising occurred.
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