Assessment of the selection materials of salad beet for their reaction to the agents causing fusarium and scab root decay

During the period from 2012 – 2014,in the proving grounds of the Agricultural Institute – Shumen, has been performed an assessment of the selection forms of sugar beet to the agents causing fusarium rotting and scab root decay. The assessment is performed under field conditions in natural infectious background, with block method attempts, in 4 successions and with size of the cultivation area – 10.8 m2. The disease spreading is recorded and shown in % of sick plants per unit of area (ha). In the test are included 8 selection materials of sugar beet, among which there is 1 sort fodder beet for standard during the examination – the sort “Pliska”. It is found that this sort is sensitive to the “root decay”; the sorts “Radost2” and ‘Radost3”, as well as the selection lines 802-41Red are averagely sensitive towards the “root decay” ; the sort “Radost1” and the lines 803 Red, 802 Red, 804- Yellow and 805- Yellow are averagely stable towards the “root decay” .