Rapid development of plantation-commercial production of medicinal plants demands certain quantities of adequate quality seed. Preliminary results for yield and quality of artichoke seed obtained from one-year and two-year crop plants with two variants of vegetation space sizes are presented. The 'Domestic large' variety was tested. The highest yield of seed was achieved in two-year artichoke plants grown in the variant of 70x50 cm row spacing.

During the period 1982-1991, at the 'Radmilovac' site, Experimental Station of the Faculty of Agriculture, Belgrade-Zemun, Yugoslavia, 14 grapevine genotypes were investigated. The experiment included the features as follows: grape yield (q/ha), single bunch weight (g), single berry weight (g), sugar content of must (%) and total acids of must (g/l).