OBSERVATIONS CONCERNING THE EFFECTS OF THE FOLIAR APPLICATION OF COPPER ON SOME PHYSIOLOGICAL PROCESSES OF CALENDULA OFFICINALIS L. SPECIES
NICOLETA BADĂLUŢĂ(1), PRISECARU MARIA(2), RAŢI IOAN VIOREL(3), DUMITRA RĂDUCANU (4)
1,2,3,4 University „Vasile Alecsandri” Bacau, Faculty of Biology, Marasesti Street, no. 157, Bacau, Romania
e-mail: nicoleta_dogaru@yahoo.com;
e-mail: prisecaru_maria@yahoo.com;
e-mail: ratiioanviorel@yahoo.com;
e-mail: dumitra_manea@yahoo.com
Abstract
The study presents the results obtained in testing the moderate application of copper sulfate on calendula plants, in comparison to the high quantity commonly used for different species of plants cultivated in private gardens. As a result of our research, we can prove the positive effect of copper sulfate in the storage of dry matter and assimilating pigments in vegetal tissues for tested variants, as well as the existence of biometric growths.