BRS F63 (Camila): A fresh market potato cultivar, with high yield potential and resistance to virus Y

Abstract

Camila potato, registered and protected as BRS F63, is a cultivar for the fresh market, with oval tubers of attractive appearance, having shallow eyes, yellow and smooth skin, and light yellow flesh. It presents medium specific gravity (dry matter), which allows greater culinary versatility than ‘Agata’. Cooked tubers have a firm texture and distinctive flavor, with potential for use even in gourmet kitchen, for preparing salads and other similar dishes. The vegetative growth cycle and dormancy are medium. It presents high productive potential, with high percentage of marketable tubers. It is moderately resistant to greening. Concerning physiological disorders in the tubers, ‘BRS F63’ (Camila) is similar to ‘Agata’ and ‘Asterix’ in crops of subtropical ecosystem, but the incidence increases in plantations outside the Winter crop in tropical ecosystem. It is moderately susceptible to Phytophthora infestans and Alternaria spp., which can be managed effectively with fungicides. It has extreme resistance to virus Y (Ry sto ), which reduces the loss of seed quality, allowing more generations of multiplication.

Growth and yield of Brazilian potato cultivars

“…Five potato cultivars developed by the Embrapa's Breeding Program were analyzed, which have the following characteristics: 'Macaca', early maturity (85 to 90 days), low vigor plants, upright growth habit, and tubers with medium-low dry mass content (Pereira et al, 2003); 'BRS Ana', late maturity (110 to 120 days), vigorous plants, upright growth habit, and tubers with medium dry mass content (Pereira et al, 2010); 'BRS Clara', medium maturity (100 to 105 days), semi-upright plant growth habit, medium size, and tubers with medium dry mass content (Pereira et al, 2013); 'BRSIPR Bel', medium maturity (110 days), semi-upright plant growth habit, medium size, and tubers with medium to high dry mass content; 'BRS F63' (Camila), medium maturity (100 to 105 days), medium vigorous plants and semi-upright growth habit, and tubers with medium dry mass content (Pereira et al, 2018) The soil of the field is classified as Eutrophic Red-Yellow Argisol. The chemical analysis of the arable layer (0-20 cm) prior to planting resulted in: pH (H 2 O)= 5.6; SMP index= 6.4; clay= 18%; organic matter= 1.4% (m/v); K= 113 mg dm -3 ; P= 25.6 mg dm -3 ; Al= 0.0 cmol c dm -3 ; Ca= 2.2 cmol c dm -3 ; Mg= 1.1 cmol c dm -3 .…”