Influência de calcário e fósforo no desenvolvimento e produção de variedades de maracujazeiro-amarelo

Com objetivo de avaliar o efeito da aplicação de calcário e fósforo sobre o desenvolvimento de duas variedades de maracujazeiro, foi desenvolvido experimento em casa de vegetação no Instituto de Ciências Agrárias da Universidade Federal Rural da Amazônia (UFRA). Utilizou-se como substrato Latossolo Amarelo distrófico, textura média. O delineamento experimental foi em blocos casualizados, em esquema fatorial 4x4x2, com 32 tratamentos e 4 repetições, totalizando 128 parcelas. Os fatores estudados foram quatro doses de fósforo (0; 100; 200 e 300 mg dm-3 de P) na forma de superfosfato triplo (SFT); quatro níveis de saturação por bases (inicial = 15%, 40%, 65% e 90%) e duas variedades de maracujazeiro (Golden Star e CPATU-Casca fina). Como corretivo de acidez do solo, foram utilizados carbonato de cálcio (CaCO3) e carbonato de magnésio (MgCO3). Após 50 dias da instalação do experimento, realizaram-se as avaliações nas variáveis biológicas indicativas do desenvolvimento da planta, como: altura, diâmetro do caule e massa seca da parte aérea. A aplicação combinada de fósforo e de calcário influenciou positivamente no desenvolvimento e na massa seca de plantas de maracujazeiro. A maior produção de massa seca foi obtida com aplicação combinada de 160 mg dm-3 de P em solo com saturação por bases estimada de 47%, que esteve associada às concentrações de P e de Ca de 143 mg dm-3 e 2,9 cmol c dm-3 no solo; e a teores de 2,6 e 10,8 g kg-1 na massa seca da parte aérea, respectivamente. A variedade CPATU Casca fina foi superior, em termos de diâmetros médios de caule e massa seca da parte aérea

Influência de calcário e fósforo no desenvolvimento e produção de variedades de maracujazeiro-amarelo Influence of limestone and phosphorus in development and production of varieties of yellow passion fruit

Com objetivo de avaliar o efeito da aplicação de calcário e fósforo sobre o desenvolvimento de duas variedades de maracujazeiro, foi desenvolvido experimento em casa de vegetação no Instituto de Ciências Agrárias da Universidade Federal Rural da Amazônia (UFRA). Utilizou-se como substrato Latossolo Amarelo distrófico, textura média. O delineamento experimental foi em blocos casualizados, em esquema fatorial 4x4x2, com 32 tratamentos e 4 repetições, totalizando 128 parcelas. Os fatores estudados foram quatro doses de fósforo (0; 100; 200 e 300 mg dm-3 de P) na forma de superfosfato triplo (SFT); quatro níveis de saturação por bases (inicial = 15%, 40%, 65% e 90%) e duas variedades de maracujazeiro (Golden Star e CPATU-Casca fina). Como corretivo de acidez do solo, foram utilizados carbonato de cálcio (CaCO3) e carbonato de magnésio (MgCO3). Após 50 dias da instalação do experimento, realizaram-se as avaliações nas variáveis biológicas indicativas do desenvolvimento da planta, como: altura, diâmetro do caule e massa seca da parte aérea. A aplicação combinada de fósforo e de calcário influenciou positivamente no desenvolvimento e na massa seca de plantas de maracujazeiro. A maior produção de massa seca foi obtida com aplicação combinada de 160 mg dm-3 de P em solo com saturação por bases estimada de 47%, que esteve associada às concentrações de P e de Ca de 143 mg dm-3 e 2,9 cmol c dm-3 no solo; e a teores de 2,6 e 10,8 g kg-1 na massa seca da parte aérea, respectivamente. A variedade CPATU Casca fina foi superior, em termos de diâmetros médios de caule e massa seca da parte aérea.<br>Aiming to evaluate the effect of the application of lime and phosphorus on the development of seedling of two passion fruit varieties, a pot trial was carried out under greenhouse conditions at the Institute of Agricultural Sciences of the Rural Federal University of Amazônia (UFRA), using samples of an Oxisol. The experimental design used was randomized blocks, in factorial scheme 4x4x2 with 16 treatments and 4 repetitions. The factors studied had been four doses of phosphorus (0, 100, 200 and 300 mg dm-3 of P) in the triple superphosphate form (SFT); four levels of saturation for bases (initial = 15%, 40%, 65%80 and 90%) and two varieties of passion fruit, (yellow and Embrapa Oriental Amazônia). As corrective agent to soil acidity were used calcium (CaCO3) and magnesium (MgCO3) carbonate. At 50 days after planting, it was evaluated: plant height, stem diameter and dry matter of shoots. The liming and phosphorus application influenced positively the development and the dry mater of passion fruit plants. The greatest dry matter production was obtained with combined application of 160 mg dm-3 of P in soil with the base saturation of 47%, which was associated with concentrations of P and Ca of 143 mg dm-3 and 2,9 cmol c dm-3 in the soil, and contents of 2,6 and 10,8 g kg-1 in the shoot dry matter, respectively. The CPATU variety was superior in terms of average diameter of stem and dry matter production of shoots

Increased interregional virus exchange and nucleotide diversity outline the expansion of chikungunya virus in Brazil

Abstract The emergence and reemergence of mosquito-borne diseases in Brazil such as yellow fever, zika, chikungunya, and dengue have had serious impacts on public health. Concerns have been raised due to the rapid dissemination of the chikungunya virus across the country since its first detection in 2014 in Northeast Brazil. In this work, we carried out on-site training activities in genomic surveillance in partnership with the National Network of Public Health Laboratories that have led to the generation of 422 chikungunya virus genomes from 12 Brazilian states over the past two years (2021–2022), a period that has seen more than 312 thousand chikungunya fever cases reported in the country. These genomes increased the amount of available data and allowed a more comprehensive characterization of the dispersal dynamics of the chikungunya virus East-Central-South-African lineage in Brazil. Tree branching patterns revealed the emergence and expansion of two distinct subclades. Phylogeographic analysis indicated that the northeast region has been the leading hub of virus spread towards other regions. Increased frequency of C > T transitions among the new genomes suggested that host restriction factors from the immune system such as ADAR and AID/APOBEC deaminases might be driving the genetic diversity of the chikungunya virus in Brazil

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data