Diversidade de populações nativas de Camu-camu (Myrciaria dubia (Kunth) McVaugh) do estado de Roraima baseada em características morfoagronômicas

• Autor(a) principal: Lozano, Ricardo Manuel Bardales
• Data de Publicação: 2016
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da UFRR
• Texto Completo: http://repositorio.ufrr.br:8080/jspui/handle/prefix/653
• topic: Myrciaria dubia; Melhoramento genético; Seleção; Variabilidade genética; Análise multivariada; Caçari; Breeding; Selection; Genetic variability; Multivariate analysis; CNPQ::CIENCIAS BIOLOGICAS

The camu-camu (Myciaria dubia (Kunth) McVaugh) or caçari as it is known in the Amazon region belongs to the family of Myrtaceae. It is a native species of wetlands and shores of rivers and lakes of the Amazon, which are distributed widely being little known and consumed only fish, wildlife and the local population that uses it to produce soft drinks. Its main feature is the large concentration of vitamin C. Therefore, the studies of the degree of variability, through divergence studies, by either of agricultural and molecular characteristics provide important information to detect the genetic variability of populations of the same species and relationships with environmental factors. In this sense, the objective was to conduct an assessment of inter and intra-population variability through morphoagronomic characteristics of native populations of camu-camu in the state of Roraima. In predicting genetic diversity, we used different methods univariate and multivariate. The analysis suggests the existence of a high genetic diversity of agronomic traits within and among populations. The seedling height, the percentage of emergency, emergency speed index, seed yield, pulp yield and ascorbic acid levels are the greatest contribution characteristics for the genetic divergence observed in camu-camu. As identified the themselves superior intrapopulational subsamples on the rooting capacity for the formation of seedlings.