Abstract
Various concentrations of culture filtrates from Fusarium subglutinans were tested for their effect on in vitro multiplication of plantlets and regeneration from calli of pineapple. The cultivars tested were the resistant Perolera and Spring and the susceptible Perola and Smooth Cayenne. The culture filtrate reduced shoot formation of in vitro plantlets and regeneration of plants from calli derived from the susceptible cultivars but plantlets and calli from resistant plants showed resistance. These results show the potential for culture filtrates of F. subglutinans to provide a method of in vitro screening of pineapple for resistance to the pathogen.
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