N. Markova Ruzdik1*, D.Valcheva2, D.Vulchev2, Lj. Mihajlov1, I. Karov1, V. Ilieva1 1Faculty of Agriculture, “Goce Delchev” University, 2000 Stip, Macedonia 2Institute of Agriculture, 8400 Karnobat, Bulgaria Abstract. The objective of this study was to determine the correlation b
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