Scientific Papers Series B Horticulture

oriented towards the centre of the Petri dish) ona period of 45 days were made and the valuesof these measurements were expressed by themedia value of each variant. In the control casethe internal radius which measures the colonygrowth was also the media of the periodicalmeasurements values. On the basis of thesemedia values of each variant, an inhibitiondegree were calculated after the follow relation,adapted and modified after Zivkovici et al.(2010):colonies. Photos were taken after 7, 10 and 45days.RESULTS AND DISCUSSIONSOn the four media tested the colonies werecircular, with hairy aspect, white colour andback view light brown (Figure 1).Where:I% = percent of growth inhibition;I C = internal radius of the colony of the fungusMycosphaerellagrossulariae in control;I V = internal radius of the fungus Mycosphaerellagrossulariaein variant tested;The inhibition scale used for values measurementsand comparison between variantswere adapted and modified after Zivkovici etal. (2010). This scale has 11 levels whichpermit to appreciate the inhibition degree(Table 1).Periodically observation connected with colourof the colonies, back view of the colonies,contact line aspect and inhibition zone weremade. Where I%