SELECTION OF PINEAPPLE CULTIVARS RESISTANT TO FUSARIOSE

J.R.S. Cabral, A.P. de Matos, G.A.P. da Cunha
A breeding program is being carried out in Brazil to select better commercial cultivars, mainly with resistance to fusariose, Fusarium moniliforme var. subglutinans (Fms). This disease is the main problem in pineapple cultivation in the country, causing yield losses of about 30%. Perolera and Primavera, as resistance sources, were crossed with Perola and Smooth Cayenne, and evaluation of resistance in the segregating populations was done by immersing the wounded base of slips in a Fms suspension of 105 conidia mL-1 for three minutes. The genotypes showing resistance were planted in the field for evaluation of other horticultural characteristics. The evaluation of 11,738 hybrids resulted in the selection of 8 genotypes with, among other desirable characteristics, total soluble solids equal or higher than 14.0% and titratable acidity between 5.5 and 10.0 meq mL-1. The genotypes that keep those characteristics during the clonal evaluation will be recommended as cultivars resistant to fusariose.
Cabral, J.R.S., de Matos, A.P. and da Cunha, G.A.P. (1993). SELECTION OF PINEAPPLE CULTIVARS RESISTANT TO FUSARIOSE. Acta Hortic. 334, 53-58
DOI: 10.17660/ActaHortic.1993.334.5
https://doi.org/10.17660/ActaHortic.1993.334.5
Ananas comosus, breeding, Fusarium moniliforme var. subglutinans, artificial inoculation, hybridization, genetic resistance

Acta Horticulturae