RESUMO A batata doce (Ipomoea batatas) é uma das principais hortaliças cultivada no Brasil. O objetivo do trabalho foi avaliar o desempenho agronômico das cultivares de batata doce da Embrapa na região do Alto Paranaíba-MG. Os experimentos foram conduzidos em condições de campo em lavouras comerciais, nos períodos de 12 de dezembro de 2012 a 14 de maio de 2013 e 11 de dezembro de 2013 a 13 de maio de 2014. Os dois experimentos foram instalados no delineamento em blocos ao acaso com quatro repetições para avaliar oito cultivares (BRS Amélia, Beauregard, Brazlândia Branca, Brazlândia Rosada, Brazlândia Roxa, BRS Cuia, Princesa e BRS Rubissol). Não houve diferença entre as cultivares avaliadas para os caracteres massa total de raízes, massa média de raízes comerciais e formato de raiz e, para esses caracteres as cultivares apresentaram desempenho semelhante nas duas safras de cultivo. Porém, as cultivares Brazlândia Roxa, Brazlândia Branca e Beauregard destacaram-se em relação às demais, e para a principal característica relacionada ao desempenho que é a massa de raízes com padrão comercial, com produtividades de 24,62, 21,25 e 20,69 t/ha, para as três cultivares respectivamente, em 2013. As cultivares Brazlândia Roxa e Beauregard também apresentaram formato de raiz adequado e resistência a insetos, com destaque para a Brazlândia Roxa com nota 1,5 nos dois anos de avaliação. Desta forma, pode-se concluir que, dentre as cultivares avaliadas, a Beauregard é uma boa opção para os produtores do Alto Paranaíba-MG, mas a cultivar Brazlândia Roxa, que possui características qualitativas das raízes desejáveis ao mercado local com formato alongado, polpa creme e casca roxa, é a mais indicada para esta região.
A 12-year-old boy with difficulty in wound healing and abnormal scars since early childhood was examined. Light microscopy showed loose and disperse dermal collagen with rare bundles, and fibroblasts show an irregular morphology. The fibrous sheath of hair presented a normal parallel distribution of the collagen fibers with normal spindle-shaped fibroblasts. Transmission electron microscopy also found disorganized collagen fibers, which were seen in a same field in longitudinal and cross sections. With high magnifications, an amorphous substance was seen near to loose collagen fibers, which showed variable diameters in cross sections. Scanning electron microscopy of the dermis showed disorganized collagen fibers and with higher magnification, important collagen disarrangement was observed with isolated and crossed-over fibers.
'BRSIPR Bel': A chip-processing potato cultivar with tubers of good appearance'BRSIPR Bel' is a potato cultivar for frying as chips and shoestring sticks with oval tubers, and an attractive appearance, with medium shallow eyes, white smooth skin, and cream flesh. It shows low glucose content and light color chips and shoestring sticks similar to 'Atlantic'. Maturity is medium-late and dormancy is relatively long. It presents high yielding potential, with high percentage of marketable tubers, high specific gravity, and low incidence of tubers with physiological disorders. It is moderately susceptible to Phytophthora infestans, which can be managed effectively with fungicides, moderately resistant to early blight (Alternaria solani) and to Potato Virus Y (PVY).
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.
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