Pérola and Smooth Cayenne pineapple cultivars in the state of Bahia, Brazil: growth, flowering, pests, diseases, yield and fruit quality aspects.Abstract -Introduction. Pérola, the most important cultivar in Brazil and almost unknown in other countries, and Smooth Cayenne, the most grown cultivar in the world, belong to different pineapple groups with distinct botanical, morphological and agronomic characteristics. The principal characteristics and behavior of the cv. Pérola pineapple were analyzed, in comparison with the cv. Smooth Cayenne ones. Materials and methods. A comparison between Pérola and Smooth Cayenne was done, based upon results and observations made in studies carried out by Embrapa in Brazil, during the past 20 years. Results and discussion. The cv. Pérola plant usually has a smaller stem than the cv. Smooth Cayenne with a lower number of roots and leaves, but the 'D' leaves are longer, wider and more erect. The peduncle is longer, holding a narrower, longer, cone-shaped fruit, with a whitish, less fibrous flesh and edible central core, lower acidity and higher [(total soluble solids) / (titrable acidity)] ratio and juice content. The cv. Pérola is more sensitive than the cv. Smooth Cayenne to natural and artificial flowering induction, but it is less susceptible to the wilt disease transmitted by mealy bugs and to the stem borer (Castnia icarus). Cv. Pérola produces many slips, but suckers appear later, are less uniform and less well-fixed to the mother plants, making it more difficult to get a good first ratoon crop. Conclusions. The yield potential of the cv. Pérola is lower than that of the cv. Smooth Cayenne, due to a lighter fruit and usually lower planting density used. Its production costs are also lower, especially due to cheaper planting materials and a lower number of pesticide applications.
