RESISTANCE OF BRASSICAS CULTIVARS TO CLUBROOT OF CRUCIFERS
DOI:
https://doi.org/10.5380/rsa.v9i4.13118Keywords:
Plasmodiophora brassicae, Brassica oleracea, massa fresca, severidade, fresh mass, severityAbstract
The clubroot of crucifers, caused by Plasmodiophora brassicae occasioned serious damages on brassicas culture. The aim of the present work was to evaluate the resistance to clubroot of crucifers in 45 commercial cultivars of cabbage, broccolis, kale, cauliflower and chinese cabbage. The experimental parcel was constituted by aluminum pots with capacity for three liters of soil, containing two plants and four repetitions. Two grammars of powdered galls were inoculated by each pot in watering form. After 60 days of planting, gall severity in roots and fresh mass and were evaluated, the comparing affects in cultivars each studied species. The statistical program used to analyze was SASM-Agri and Scott-Knott test in 5% of probability. The gall severity was lower in ‘Kukai 70’ and ‘65’ hybrid of chinese cabagge and ‘Bola de Neve’ of cauliflower. The fresh mass of aerial among cultivars of same species was bigger in ‘Ramoso Piracicaba’; ‘Ramono Santana’; ‘Pirate’; ‘Vida Sul’; ‘Flórida’ e ‘Condor’ for broccolis. ‘Kukai 70’ and ‘Kukai 65’ hybrid for chinese cabagge and ‘Matsukaze hybrid’ for cabagge. ‘Kukai 70’ and ‘65’ hybrid of chinese cabbage and ‘Bola de Neve’ of cauliflower showed as more resistances cultivars to P. brassicae resistance.
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