[Control of oxidation and contaminating microorganisms in in vitro propagation of caulinary appendices of guava trees (Psidium guajava L.)]

alternaria antibiotics antibiotique application rates bacillus colletotrichum cultivo de tejidos culture de tissu dose d'application fongicide fungicidas fungicides oxidation oxydation pests of plants phenolic compounds plagas de plantas psidium guajava ravageur des plantes recherche research rhizopus tissue culture variedades varieties vegetative propagation zulia (venezuela)