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Chitosan reduces infection by Guignardia citricarpa in postharvest 'Valencia' oranges BABT
Rappussi,Maria Cristina Canale; Pascholati,Sérgio Florentino; Benato,Eliane Aparecida; Cia,Patrícia.
Citrus fruits are affected by the black spot disease caused by Guignardia citricarpa. Resistance induction is an alternative control measure and chitosan exhibits potential as resistance inducer. The effect of chitosan on G. citricarpa was evaluated in vitro and in 'Valencia' oranges. Citrus fruit were immersed into different chitosan concentrations. Chitosan (2%), combined with or without thiabendazole and the citric acid was also investigated. All the chitosan concentrations inhibited G. citricarpa mycelial growth and affected morphologically the conidial germination and appressorium formation. Chitosan inhibited the development of new lesions in oranges at room condition or under refrigeration. Thiabendazole and citric acid did not reduce the formation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Black spot; Citrus fruit; Alternative control; Resistance induction.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300001
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