Three groups of adolescents are compared with regard to their own considerations of abortion and when they believe abortion is justified. One group of adolescents terminated their pregnancies (n=95), a second became pregnant and carried their pregnancies to term but considered abortion (n=68), and the third also carried their pregnancies to term but did not consider abortion (n=204). The study was carried out between 1995 and 1998 in Fortaleza, Brazil. Adolescents were interviewed at the time of their hospitalization or their first prenatal visit and again at 6 weeks and 1 year post-abortion or postpartum. Friends and family recommended abortion to at least half of the teenagers in each group. Teenagers who aborted were more accepting of abortion than those who did not abort, while those who considered abortion found the practice more justified than those who did not consider abortion. Teenagers who aborted became less accepting a year later, while those who did not consider abortion became more accepting. A better understanding of adolescent attitudes towards abortion and their decisionmaking process should help adults and professionals meet the needs of adolescents for support in the process and in the reduction of the number of unintended pregnancies in the future.
Postharvest conservation of cherry tomato fruits coated with cassava starch filmTomato is a highly perishable fruit. As a climacteric fruit, the ripening process involves a series of changes in its physical and chemical characteristics. Thus, the main goal of this study was to evaluate the longevity and postharvest quality of cherry tomato fruits after applying cassava starch film under room and controlled temperature conditions. Cultivars 'Perinha Água Branca' and 'Mascot' were harvested at physiological maturity and used in this study. Cassava starch was applied at 0%, 1%, 3% and 5% followed by assessments at 0, 4, 8, 12, 16, 20 and 24 days in two separate trials: one under room temperature (25±2°C) and the other under controlled condition (12°C and 90% RH). The experimental design was completely randomized, with three replications containing 8 fruits per package in a 2x4x7 factorial. Fresh weight loss, titratable acidity, soluble solids, pectinmethylesterase activity (PME) and the relation between soluble solids and titratable acidity were evaluated. Weight loss of 'Mascot' was higher in fruit coated with 3% and 5% of starch, at room temperature and a lower PME activity was observed. Acidity was lower at 3% and 5% in 'Mascot' and 'Perinha' at controlled temperature. The treatment at 5% provided the lowest postharvest longevity, whereas the treatment at 1% was similar to control in both conditions evaluated. The treatment at 3% preserved quality parameters such as lower acidity and lower PME activity and was considered the most effective treatment. Segundo Gallo et al. (2000), os revestimentos comestíveis podem ter como base polissacarídeos (derivados de amido, pectina, alginatos, etc.), proteí-nas (isoladas de soja ou do soro de leite, etc.) e lipídios (ao qual se incluem ceras, óleos hidrogenados, triglicerídeos, entre outros).O revestimento a partir de fécula de mandioca, material constituído por polissacarídeo, apresenta como características a formação de películas resistentes e transparentes, eficientes barreiras à perda de água, bom aspecto e brilho intenso, o que torna os frutos e hortaliças comercialmente atrativos (Cereda et al., 1992;Vila, 2004).Alguns estudos foram realizados tendo por objetivo avaliar a viabilidade do uso de película de fécula de mandioca em diferentes concentrações em frutas e hortaliças. Castricini (2009) obteve resultados positivos com revestimentos à base de fécula de mandioca nas concentrações de 3 e 5% em mamões 'Golden', em que se reduziram a perda de massa, mantiveram a coloração verde durante o armazenamento e proporcionaram maior firmeza. et al. (2003) avaliaram a aplicação de suspensões a 2 e 3% de fécula de mandioca em tomate, verificando que as películas formadas não influenciaram na perda de massa e na textura. Entretanto os frutos revestidos com películas formadas pela suspensão a 3% apresentaram melhor aparência. DamascenoResultados poucos expressivos ou negativos também são relatados. Souza et al. (2009) verificaram que berinjelas revestidas por fécul...
Fruit maturity stage has direct influence on the post-harvest life and consumer quality. Therefore, the understanding of the maturation process and its quality characteristics for storage are key factors for commercialization. In face of the foregoing, this study aimed to determine shelf life and changes in physical and chemical indexes of cherry tomatoes (Perinha Água Branca (PAB) and Mascot), assessing fruit harvested at four maturity stages and stored at ambient and controlled temperatures. For this, it was used fruit at turning, pink, red and ripe maturity stages, submitted to ambient (25 ± 2 °C) and controlled (12 °C and 90% RH) temperature, and assessed over time the indexes of fresh mass loss, titratable acidity, pH, soluble solids and ascorbic acid. The experimental design was completely randomized design in a factorial scheme of 2×4×7 for ambient temperature and 2×4×8 for controlled temperature. At ambient temperature, a longevity of up to 20 days was observed for PAB and Mascot fruit harvested at turning and pink maturity stages. When harvested at red and ripe stages, the longevity was of 15 days for PAB fruit and of 15 and 11 days, respectively, for Mascot fruit. At controlled temperature, PAB fruit showed longevity of 24 days when harvested at turning and pink stages and of 20 and 7 days, respectively, when harvested at red and ripe stages. A longevity of up to 27 days was observed for Mascot fruit harvested at turning stage and of 24 days for the other stages. The fruit harvested at turning and pink maturity stages, associated with storage under controlled conditions, presented higher longevity and maintenance of physical and chemical indexes of quality. Key words: Solanum lycopersicum. Maturity stage. Post-harvest. ResumoO estádio de maturação do fruto influencia diretamente na sua vida pós-colheita e na escolha por parte do consumidor, por isso o entendimento do processo de maturação e de suas características de qualidade para o armazenamento são fatores fundamentais para a comercialização. Diante disso, este trabalho teve por objetivo determinar o tempo de prateleira e alterações dos índices físicos e químicos em frutos de tomate do grupo cereja (Perinha Água Branca (PAB) e Mascot), colhidos em quatro estádios de maturação e armazenados sob temperatura ambiente e controlada. Para issa, foram utilizados frutos nos estádios de maturação: de vez, rosado, vermelho e maduro, submetidos às temperaturas: ambiente (25 ± 2 °C) e controlada (12 °C e UR de 90%) e avaliados os índices de perda de massa fresca, acidez titulável, pH, sólidos solúveis e ácido ascórbico ao longo do tempo. O delineamento experimental foi
O objetivo do presente trabalho foi avaliar o efeito da aplicação de bokashi, esterco bovino, e da combinação entre estes, sobre o crescimento e produtividade de nove cultivares de alface (Lactuca sativa L.) nas condições de Seropédica-RJ. O ensaio foi realizado em condições de campo no período de setembro a outubro de 2017. Utilizaram-se como tratamentos quatro tipos de adubação, sendo: bokashi (0,5 kg/m2); mistura de bokashi com esterco bovino (0,250 kg/m2 +1,0 kg/m2, respectivamente); adubação com esterco bovino (2,0 kg/m2) e testemunha, em combinação com nove cultivares de alface (Babá de Verão, Elisa, Mimosa, Grande Rapids, Camila, Sabrina, Grande Lagos, Regina, e Quatro Estações). O delineamento experimental adotado foi blocos ao acaso em esquema de parcelas subdividas, sendo, as diferentes fontes de adubação (parcelas) e cultivares (subparcelas), com quatro repetições. Avaliaram-se o diâmetro da cabeça (cm), biomassa fresca da cabeça (g planta-1), número de folhas e produtividade estimada (ton.ha-1). Não houve efeito significativo da interação adubação x cultivar sobre as variáveis analisadas. As cultivares Grandes Lagos e Grandes Rapids apresentaram maior produção de biomassa fresca da cabeça e produtividade que as demais. A alface respondeu positivamente a adubação orgânica e o composto bokashi foi o que proporcionou melhores ganhos em crescimento e produtividade para a cultura. A utilização de esterco bovino também produziu bons resultados no desempenho da cultura representando mais uma possibilidade a ser utilizada pelo produtor.
Lateral root emission contributes to the mechanism of drought escape in Catetão. Catetão increased the root number at 60-90° angle under drought stress. Membrane integrity was less compromised during drought stress in Catetão. Ratio of deep rooting can be used to select tolerant genotypes to the drought stress.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
334 Leonard St
Brooklyn, NY 11211
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.