EMERGE OF VIRULENCES IN AGROSYSTEMS: VENTURIA INAEQUALIS AT VF APPLE CULTIVARS GROWN IN ROMANIA AS A CASE STUDY
Journal Title: FRUIT GROWING RESEARCH - Year 2017, Vol 0, Issue
Abstract
Scab symptoms were found for the first time in 2016 in Arges District, Romania on leaves and fruits of apple cultivars ('Ariane', 'Florina', 'GoldRush', 'Enterprise', 'Topaz' and 'Rubinola'), carrying the Vf (= Rvi6) major gene to Venturia inaequalis. An F1 progeny derived from six different crosses: (1) 'Generos' x 'Crimson Crisp', (2) 'Topaz' x 'Crimson Crisp', (3) 'GoldRush' x 'Luca', (4) 'Gala' x 'Ariane', (5) 'Fuji' x 'Ariane' and (6) 'Enterprise' x 'Fuji' was screening for the resistance genes study. For inoculum was used isolates derived from one resistant genotype (Vf gene) and two sensitive varieties. The seedlings were inoculated in the glasshouse and classified according to the reaction type. A clear effect of the susceptible parent on the resistance of the progeny was observed.
Authors and Affiliations
Madalina Militaru, Mirela Calinescu
Keywords
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