Abstract The aim of this study was to evaluate the awareness of patients using bisphosphonates (BP) regarding their risks and benefits. Sixty-five patients using BP were included. Each participant completed a self-administered questionnaire consisting of 13 questions, including sociodemographic and general information on BP. Data were analyzed using descriptive statistics, and a binomial test was used to assess patient knowledge about BP, considering a 5% significance level. Fifty-nine (90.2%) patients were unaware or had never heard of BP drugs and only 3 (4.6%) knew their indications. Only 6 patients (9.2%) said they knew about the oral complications caused by BP. Sixty-three patients (96.9%) said they were not referred to the dentist before starting BP treatment. Patients using BP do not have satisfactory knowledge regarding the risks and benefits of BP. Physicians and dentists must be prepared to inform and counsel BP users about their adverse effects and possible risk factors. Our results emphasize the importance of public policies, whether individual or collective, to be taken to increase knowledge about BP to avoid medication-related osteonecrosis of the jaw.

As cultivares de batata no Brasil geralmente apresentam ciclo vegetativo de 90 a 110 dias, sendo bem mais longo em países de clima temperado, podendo chegar até 150 dias. O ciclo vegetativo longo nestes países proporciona maior produtividade e constitui-se em alternativa para aumento da produção de tubérculos sob condições tropicais. Os objetivos deste trabalho foram avaliar o potencial da seleção para aumentar ou diminuir o ciclo vegetativo da batata e verificar a relação entre a duração do ciclo vegetativo e a produção de tubérculos em condições tropicais. Na primeira geração clonal foram avaliados a produção de tubérculos e o ciclo vegetativo de 1.561 genótipos oriundos de 22 famílias clonais. Na segunda geração clonal foram avaliadas as mesmas características em 320 genótipos selecionados para ciclo vegetativo precoce, intermediário e tardio. A seleção nas gerações iniciais foi eficiente, tanto para diminuir permitiu obter maior ganho do que a seleção entre famílias. Os genótipos mais tardios foram mais produtivos que os mais precoces.

Potato cultivars in Brazil generally present a growth cycle duration ranging from 90 to 110 days, whereas in countries located in temperate climate it can reach up to 150 days. Longer vegetative growth cycle in these countries confer higher tuber yield and, in tropical countries it also could be an alternative to increase tuber yield. In this work we evaluated the selection potential for longer or shorter growth cycle duration of potato clones and we determined the relationship between growth cycle duration and tuber yield. In the first clonal generation tuber yield and growth cycle duration were evaluated on 1561 genotypes derived from 22 clonal families. In the second clonal generation, the same traits were evaluated on 320 genotypes selected for earliness, intermediate and late vegetative cycle. Selection in the initial generations was efficient both to decrease and to increase the growth cycle duration. The selection for growth cycle based on individual clones allowed higher gains than the selection among families. The latest genotypes were more productive than the earliest genotypes.

Por apresentar volume limitado de substrato, o plantio em vasos pode levar a uma reduzida taxa de multiplicação de tubérculos de batata. Objetivou-se estudar a multiplicação de tubérculos-semente pré-básicos de batata em vasos, em função da densidade de plantas e dos métodos de colheita. Os ensaios foram conduzidos em ambiente protegido com tela antiafídeo, em vasos de 3 L. Em ambos os ensaios foram utilizadas plântulas livres de vírus. No primeiro ensaio foram avaliadas as cultivares Monalisa e Ágata e dois métodos de colheita (única e escalonada, com colheitas a cada 30 dias), em um fatorial 2 x 2 em delineamento inteiramente ao acaso, com seis repetições e parcelas de quatro vasos, com uma plântula por vaso. No segundo ensaio, foi utilizada apenas a cultivar Monalisa e foram avaliadas cinco densidades de plantio, de 1 a 5 plantas por vaso (25 a 125 plantas m-2) nas épocas de primavera/verão e outono/inverno. Estes ensaios foram conduzidos em delineamento inteiramente ao acaso, com quatro repetições de quatro vasos cada. Não houve efeito significativo do método de colheita sobre o número total de brotos. Ao contrário, maior comprimento e massa fresca de tubérculos foram obtidos na colheita única. A cultivar Ágata produziu significativamente mais tubérculos por planta que a cultivar Monalisa, embora esta tenha produzido tubérculos de maior comprimento e massa. Em relação à densidade de plantio, na primavera/verão cada planta adicionada ao vaso (0,04 m² para cada planta adicionada) proporcionou um incremento de 2,69 tubérculos por vaso (67,25 tubérculos m-2), enquanto, no inverno, o incremento foi de 4,36 tubérculos por vaso (109 tubérculos m-2). Por outro lado, o aumento na densidade levou à redução em média de 3,20 g na massa fresca dos tubérculos para cada planta adicionada ao vaso no experimento de inverno. No experimento conduzido na primavera/verão a densidade de plantio não influenciou o peso fresco dos tubérculos.

The limited volume of substrate might reduce tuber multiplication rates when production is carried out in pots. The results of potato seed tubers multiplication in pots are presented in this publication, taking into account different plant densities and harvest methods. Experiments were carried out in an aphid-proof screenhouse, with 3 L pots, using virus-free seedlings previously acclimatized. In the first experiment, cultivars Monalisa and Agata, and two harvest systems were evaluated (single destructive and sequential 30-day intervals non-destructive harvests) in two seasons, namely spring/summer and autumn/winter. The experimental design was completely randomized, in a 2 x 2 factorial scheme, with six replications, four-pot plots and one seedling per pot. In the second experiment, potato seedlings from cultivar Monalisa were transplanted to pots according to the density treatments, from 1 to 5 seedlings per pot (25 to 125 plants m-2). The experiment was carried out in a completely randomized design with four replications and four-pot plots. Larger tuber yield per plant was obtained under non-destructive harvest for both cultivars. Instead, larger tuber length and fresh weight were observed in the single destructive harvest. Cultivar Agata outyielded cultivar Monalisa in number of tubers, although the latter produced longer and heavier tubers. Regarding plant density, each additional plant per pot (0.04 m² per plant), yielded 2.69 extra tubers per plant) (67.25 tubers m-2) in the spring/summer experiment and 4.36 extra tubers (109 tubers m-2) in the winter experiment. Nevertheless, the increase in density led to an average decrease of 3.20 g in tuber fresh weight per additional plant. In the spring/summer experiment, plant density had no significant influence on tuber fresh weight.