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ABSTRACT Sweet potato is among the most important food crops in the world. Due to its high genetic diversity, this species has cultivars that can respond in different ways depending on mineral fertilization. Among the nutrients, phosphorus is related to physiological and biochemical processes that can influence the final quality of the product. This study aimed to assess the influence of P doses on the quality and bioactive compounds of sweet potato cultivars - Paraná, BRS Amélia, and BRS Cuia. The pH, soluble solids (SS), titratable acidity (TA), SS/TA ratio, soluble sugars, and the bioactive compounds - flavonoids, anthocyanins, and carotenoids - were evaluated. The P doses influenced sweet potato cultivars. The dose of 120 kg ha-1 promoted increments in the parameters pH, SS, TA, and SS/TA ratio for the cultivar BRS Cuia. The same dose promoted an increase in total soluble sugars for the cultivar BRS Amélia. P dose of 240 kg ha-1 promoted higher levels of flavonoids and anthocyanins in the cultivar Paraná, and there was an increase in carotenoid content at the dose of 60 kg ha-1.

RESUMO A batata-doce está entre as culturas alimentícias mais importantes do mundo. Por apresentar alta diversidade genética, essa espécie possui cultivares que podem responder de maneiras diferentes em função da adubação mineral. Dentre os nutrientes, o fósforo está relacionado com processos fisiológicos e bioquímicos que podem influenciar na qualidade final do produto. Este estudo teve como objetivo avaliar a influência de doses de P na qualidade e compostos bioativos de cultivares de batata-doce - Paraná, BRS Amélia e BRS Cuia. Foram avaliados o pH, sólidos solúveis (SS), acidez titulável (AT), relação SS/AT, açúcares solúveis e os compostos bioativos - flavonoides, antocianinas e carotenoides. As doses de P influenciaram as cultivares de batata-doce. A dose de 120 kg ha-1 promoveu incrementos nos parâmetros pH, SS, AT e relação SS/AT para a cultivar BRS Cuia. A mesma dose promoveu incrementos nos açúcares solúveis totais para a cultivar BRS Amélia. A dose de 240 kg ha-1 promoveu maiores teores de flavonoides e antocianinas na cultivar Paraná, e houve aumento no teor de carotenoides na dose de 60 kg ha-1.

https://doi.org/10.1590/1807-1929/agriambi.v28n1e274451

Resistencia antimicrobiana en los principales recursos acuícolas de los departamentos de Tumbes, Piura, San Martin y Puno
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Calizaya, Carla D.

; Reátegui, Erick H.

; Silva, José C.

; Velazco, Rodolfo

; Rodríguez, Liliana

; Angulo, Derly R.

; Llontop, Carlos A.

; Salcedo, Luis A.

; Villena, Carla A.

Uniciencia

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dec 2023, Volume 37 N. 1 Pages 562 - 577

Abstract: En Es Pt | Text: En Es Pt | PDF: En | PDF: Es | PDF: Pt

Abstract (Objective) The objective of this study was to analyze antimicrobial resistance in Peruvian aquaculture. (Methodology) An observational, descriptive study was carried out. Samples of Argopectenpurpuratus, Oncorhynchus mykiss, Oreochromis niloticus and Litopenaeus vannamei were included. The bacteria Enterococcus spp., Salmonella spp., Erichia coli, Vibrio parahaemolyticus, Aeromonas spp., and Flavobacterium psychrophilum were isolated. Antibiotic resistance was evaluated using antibiograms, and resistant samples were sequenced to identify antimicrobial resistance genes. Absolute and percentage frequencies were calculated. In addition, Wald, Clopper-Pearson, and pooled prevalence confidence intervals were estimated. (Results) In the case of A. purpuratus, 22.2% (95% CI:2.81-60.00) of the E. coli samples were resistant to oxytetracycline. Resistant samples were found in 4.44% (n=2) of the aquaculture production centers (APCs). In O. mykiss, 88.89% (95% CI:51.16-99.72) of the Enterococcus spp. were resistant to osfomycin and oxytetracycline. Resistant samples were found in12.96% of the APCs (n=7). Regarding O. niloticus, 47.31% (95% CI: 37.16-57.46) of the E. coli samples were resistant to oxytetracycline ampicilline>chloramphenicol>fosfomycin and azithromycin. Resistant samples were encountered in 50% of the APCs (n=19). In addition, 89.36% (95% CI:80.55-98.18) of the Enterococcus spp. were resistant to Fosfomycin> chloranphenicol and colistin> oxytetracycline>azithromycin>ampicilline; resistant samples were found in 36.84% of the APCs (n=14). In L. vannamei, 87.11% (95% CI:83.00-91.21) of the Enterococcus spp. samples were resistant to Fosfomycin> colistin> oxytetracycline> azithromycin> ampicilline and resistant samples were found in 100% of the APCs (n=33). Likewise, 35.05% (95% CI:29.74-40.23) of the V. parahaemolyticus samples were resistant to ampicilline>fosfomycin>oxytetracycline>azithromycin>eritromicine>enrofloxacin>ampicilline> chloranfhenicol. Resistant samples were found in 78.79% (n=26) of the APCs (Conclusions) The percentage of APCs with O. niloticus and L. vannamei showed that antimicrobial resistance was high.

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Resumo (Objetivo) O objetivo foi analisar a resistência antimicrobiana na aquicultura peruana. (Metodologia) Foi realizado um estudo observacional, descritivo. Foram incluídas amostras das espécies Argopecten purpuratus, Oncorhynchus mykiss, Oreochromis niloticus e Litopenaeus vannamei. Foram isoladas bactérias dos gêneros Enterococcus spp., Salmonella spp., Aeromonas spp., e espécies de Escherichia coli, Vibrio parahaemolyticus e Flavobacterium psychrophilum. A resistência antimicrobiana foi avaliada por meio de antibiograma, e amostras resistentes foram sequenciadas para identificar genes de resistência antimicrobiana. Foram calculadas as frequências absoluta e percentual, além dos intervalos de confiança de Wald, Clopper-Pearson e as prevalências agrupadas. (Resultados) Em relação a A. purpuratus, 22,2% (IC 95%: 2,81-60,00) das amostras de E. coli foram resistentes à oxitetraciclina. Estes pertenciam a 4,44 % (n=2) dos centros de produção aquícola (CPA). Em O. mykiss, 88,89% (IC 95%: 51,16-99,72) das amostras de rococcus spp. foram resistentes à fosfomicina e oxitetraciclina. Estas pertenciam a 12,96% das CPAs (n=7). Em relação a O. niloticus, 47,31 % IC 95%: 37,16-57,46) das amostras de E. coli foram resistentes à oxitetraciclina>ampicilina>cloranfenicol fosfomicina e azitromicina. Estas pertenciam a 50% das CPAs (n=19). Além disso, 89,36% (IC95%: 80,55-98,18) das amostras de Enterococcus spp. foram resistentes a fosfomicina>cloranfenicol e colistina>oxitetraciclina>azitromicina>ampicilina; estas pertenciam a 36,84% das CPAs (n=14). Em L. vannamei, 87,11% (IC 95%: 83,00-91,21) das amostras de Enterococcus spp foram resistentes à fosfomicina>colistina>oxitetraciclina>azitromicina eritromicina>enrofloxacina> ampicilina>cloranfenicol e pertenciam a 100% das CPAs (n=33). Além disso, 3 ,05% (IC 95%: 29,74-40,23) das amostras de V.parahaemolyticus foram resistentes à ampicilina>fosfomicina>colistina>oxitetraciclina>azitromicina. Estas pertenciam a 78,79% (n=26) das CPAs. (Conclusões) A porcentagem de CPA de O. niloticus L. vannamei, mostrou maior resistência antimicrobiana do estudo.

https://doi.org/10.15359/ru.37-1.30

Long-term oncological and surgical outcomes after Video Endoscopic Inguinal Lymphadenectomy (VEIL) in patients with penile cancer
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Tobias-Machado, Marcos

; Ornellas, Antonio A.

; Hidaka, Alexandre K.

; Medina, Luis G.

; Mattos, Pablo A. L.

; Besio, Ruben S.

; Abreu, Diego

; Castro, Pedro R.

; Nishimoto, Ricardo H.

; Astigueta, Juan

; Dourado, Aurus

; Machado, Roberto D.

; Magnabosco, Wesley J.

; Corona-Montes, Victor

; Villoldo, Gustavo M.

; Zampolli, Hamilton C.

; Taha, Anis

; Auad, Pericles R.

; Faria, Eliney F.

; Arantes, Paulo B. O.

; Tavares, Alessandro

; Nascimento, Francisco S. M. S.

; Brazão Jr., Eder S.

; Rocha, Maurício M.

; Costa, Walter H.

; Panico, Vinicius

; Reis, Leonardo O.

; Almeida-Carrera, Roberto J.

; Silva, Rafael C.

; Zequi, Stênio C.

; Calixto, José R. R.

; Sotelo, Rene

International braz j urol

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oct 2023, Volume 49 N. 5 Pages 580 - 589

Abstract: En | Text: En | PDF: En

ABSTRACT Objective: To report outcomes from the largest multicenter series of penile cancer patients undergoing video endoscopic inguinal lymphadenectomy (VEIL). Materials and Methods: Retrospective multicenter analysis. Authors of 21 centers from the Penile Cancer Collaborative Coalition-Latin America (PeC-LA) were included. All centers performed the procedure following the same previously described standardized technique. Inclusion criteria included penile cancer patients with no palpable lymph nodes and intermediate/high-risk disease and those with non-fixed palpable lymph nodes less than 4 cm in diameter. Categorical variables are shown as percentages and frequencies whereas continuous variables as mean and range. Results: From 2006 to 2020, 210 VEIL procedures were performed in 105 patients. Mean age was 58 (45-68) years old. Mean operative time was 90 minutes (60-120). Mean lymph node yield was 10 nodes (6-16). Complication rate was 15.7%, including severe complications in 1.9% of procedures. Lymphatic and skin complications were noted in 8.6 and 4.8% of patients, respectively. Histopathological analysis revealed lymph node involvement in 26.7% of patients with non-palpable nodes. Inguinal recurrence was observed in 2.8% of patients. 10y- overall survival was 74.2% and 10-y cancer specific survival was 84.8%. CSS for pN0, pN1, pN2 and pN3 were 100%, 82.4%, 72.7% and 9.1%, respectively. Conclusion: VEIL seems to offer appropriate long term oncological control with minimal morbidity. In the absence of non-invasive stratification measures such as dynamic sentinel node biopsy, VEIL emerged as the alternative for the management of non-bulky lymph nodes in penile cancer.

https://doi.org/10.1590/s1677-5538.ibju.2023.0065

Hydroponic coriander grown under nutritional solutions prepared with brackish water of different cation prevalence
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Navarro, Franz E. C.

; Silva, Ivis A. C. e

; Santos Júnior, José A.

; Oliveira, Tarcísio F. de

; Silva, Gerônimo F. da

; Silva, Ênio F. de F. e

Revista Brasileira de Engenharia Agrícola e Ambiental

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sep 2023, Volume 27 N. 9 Pages 736 - 745

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The use of brackish water for preparation of nutrient solutions has several impacts on crop performance, depending on the water concentration and cation prevalence. Therefore, this study was conducted to evaluate production and water relations of coriander grown on nutrient solutions prepared with brackish waters with different cationic natures under hydroponic conditions. A randomized block experimental design with four replicates was used, in a 4 × 3 factorial arrangement. The treatments consisted of four electrical conductivities of the nutrient solution (1.6, 3.2, 4.8, and 6.4 dS m-1) which were prepared in waters with different salts (NaCl, CaCl2.2H2O, and MgCl2.6H2O). Salinity negatively affected the production and water relations of coriander grown in hydroponic system; plants grown on nutritive solutions with predominance of Na+ had higher total dry weight and shoot dry weights, as well as higher stomatal conductance. The largest leaf area was found when using the nutrient solution with predominance of Mg2+.

RESUMO O uso de águas salobras no preparo de soluções nutritivas tem diferentes impactos no desempenho das culturas, dependendo da concentração e prevalência catiônica da água. Portanto, este estudo foi realizado com o objetivo de avaliar a produção e as relações hídricas do coentro cultivado em soluções nutritivas preparadas com águas salobras de diferentes naturezas catiônicas em condições hidropônicas. O delineamento experimental adotado foi de blocos ao acaso, analisado em esquema fatorial 4 × 3, com quatro repetições. Os tratamentos consistiram de quatro níveis de condutividade elétrica da solução nutritiva (1,6; 3,2; 4,8 e 6,4 dS m-1) que foram preparadas em águas salinizadas com diferentes sais (NaCl; CaCl2.2H2O e MgCl2.6H2O). A salinidade afetou negativamente a produção e as relações hídricas do coentro cultivado em sistema hidropônico; verificou-se que as plantas submetidas às soluções nutritivas com predominância de Na+ tiveram maior produção de massa seca total e massa seca da parte aérea, bem como maior gs; assim como a maior área foliar foi obtida utilizando solução nutritiva com predominância de Mg2+.

https://doi.org/10.1590/1807-1929/agriambi.v27n9p736-745

Cultivation of chicory under nutrient solutions prepared in brackish waters and applied at different temperatures
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Oliveira, Tarcísio F. de

; Santos Júnior, José A.

; Silva, Mairton G. da

; Gheyi, Hans R.

; Almeida, Júlio C. de

; Guiselini, Cristiane

Revista Brasileira de Engenharia Agrícola e Ambiental

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sep 2023, Volume 27 N. 9 Pages 719 - 728

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The cooling of nutrient solutions prepared in brackish water can have several implications for plants grown in hydroponics. In this context, the present study aimed to evaluate the effects of temperature and salinity stresses in the root zone on the growth, water status, production, and leaf characteristics of chicory cultivar Folha Larga, exposed to four values of electrical conductivity of nutrient solution - ECns (1.7, 3.2, 4.7, and 6.2 dS m-1), applied at two temperatures (ambient temperature and controlled in the range between 25-30 °C). The randomized block design arranged in a 4 × 2 factorial scheme with four replications was used. Cooling nutrient solution mitigated effects of salinity on stem height and diameter, number of leaves, and leaf area of chicory; provided greater production and water consumption, stability into root-shoot relationships, and membrane integrity within the saline range studied (1.7 to 6.2 dS m-1).

RESUMO O resfriamento de soluções nutritivas preparadas em águas salobras pode ter diversas implicações sobre as plantas cultivadas em hidroponia. Nesse contexto, o presente estudo teve como objetivo de avaliar os efeitos dos estresses de temperatura e salinidade na zona radicular sobre o crescimento, estado hídrico, produção e características foliares do almeirão, cultivar Folha Larga, exposto a quatro valores de condutividade elétrica da solução nutritiva - CEsn (1,7; 3,2; 4,7 e 6,2 dS m-1), aplicado em duas temperaturas (ambiente e controlada na faixa entre 25-30 °C). Foi adotado o esquema fatorial 4 × 2 em blocos casualizados, com quatro repetições. O resfriamento da solução nutritiva mitigou os efeitos da salinidade sobre a altura e diâmetro do caule, número de folhas e área foliar do almeirão; proporcionou maior produção e consumo hídrico, estabilidade na relação raiz parte aérea e integridade da membrana, no intervalo salino estudado (1,7 a 6,2 dS m-1).

https://doi.org/10.1590/1807-1929/agriambi.v27n9p719-728

Selection of lima bean accessions for fresh and dry production
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Damas, Loren R.

; Barroso, Priscila A.

; Assunção Neto, Wilson V. de

; Lopes, Angela C. de A.

; Silva Junior, José V. da

; Gomes, Regina L. F.

; Medeiros, Artur M.

Revista Brasileira de Engenharia Agrícola e Ambiental

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aug 2023, Volume 27 N. 8 Pages 625 - 631

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The selection of lima bean accessions in the fresh and dry stages is an excellent tool to increase crop yield in Brazil and ensure a source of vegetable protein for the population. Principal component analysis and nonparametric indices can be used to identify promising accessions based on the desired agronomic variables. The aim of the present study was to select accessions from traditional lima bean varieties in the fresh and dry stages using principal component analysis and nonparametric selection indices. The experiment consisted of a randomized block design, evaluating 13 treatments in four replicates. The experimental plot contained 20 plants in its study area. The first two principal components for the two stages explained more than 80% of the variation found among the accessions. The Mulamba & Mock and Genotype-Ideotype selection indices were efficient in classifying promising varieties for breeding programs. The UFPI 1111 accession can be used in fresh lima bean production, and its UFPI 1248 and 1294 counterparts in lima bean breeding programs.

RESUMO A seleção de acessos de feijão-fava nos estádios verde e seco é uma excelente ferramenta para aumentar a produtividade da cultura no país e garantir uma fonte de proteína vegetal para a população. O uso de componentes principais e índices de seleção não-paramétricos podem ser utilizados para identificar acessos promissores com base em características agronômicas desejáveis. O objetivo do presente estudo foi selecionar acessos de variedades crioulas de feijão-fava nos estádios frescos e secos utilizando componentes principais e índices de seleção não paramétricos. O experimento foi disposto em delineamento em blocos casualizados, sendo avaliados 13 tratamentos em quatro repetições. A parcela experimental conteve 20 plantas em sua área útil. Os dois primeiros componentes principais, para os dois estádios, explicaram mais de 80% da variação encontrada entre os acessos. Os índices de seleção de Mulamba & Mock e Genótipo-Ideótipo foram eficientes na classificação de variedades promissoras para programas de melhoramento. O acesso UFPI 1111 pode ser direcionado para a produção de fava verde, e os acessos UFPI 1248 e UFPI 1294 podem ser utilizados para programas de melhoramento de fava seca.

https://doi.org/10.1590/1807-1929/agriambi.v27n8p625-631

Characterization of Flavonoids Profiles in Polar Extracts from Croton grewioides Baill. Using Ultra-High Resolution Mass Spectrometry Baill UltraHigh Ultra High
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Nascimento, Pedro E. S. do

; Prado, Vilma M. J.

; Jesus, Raphael A. de

; Silva, Wenes R. da

; Wisniewski Jr., Alberto

; Sá Filho, José C. F.

; Blank, Arie F.

; Souza, Daniel A. de

; Wartha, Elma R. S. A.

; Nogueira, Paulo C. L.

; Moraes, Valéria R. S.

Journal of the Brazilian Chemical Society

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jul 2023, Volume 34 N. 7 Pages 937 - 948

Abstract: En | Text: En | PDF: En

Research to identify plant bioactive compounds led to the evolution of extraction methods. This study optimized ultrasound-assisted extraction (UAE) and microwave-assisted extraction (MAE) to extract the flavonoids of Croton grewioides Baill. species contributing to characterize the polar extract profile and understand the antioxidant potential of these plant constituents. The use of experimental design and statistical treatments enabled the determination of the ideal conditions for each technique. The extracts of five accessions of C. grewioides were obtained under the optimized extraction conditions and were analyzed using ultra high-resolution mass spectrometry (FT-Orbitrap MS) operating at negative ionization mode for flavonoids detection. The accurate experimental mass obtained to the main compounds was used to attribute the molecular formula. Chemical structures of the main compounds detected were proposed using structure data bases. Chemometric analysis were performed with two FT-Orbitrap MS spectra samples using the identified metabolites and, the antioxidant activity data, showing that for this species the MAE was most effective in extracting the antioxidant compounds. It was possible to propose the structures for forty compounds in the C. grewioides extracts, demonstrating the excellent performance of the FT-Orbitrap MS in providing information on the chemical profile of polar compounds in plant extracts. methods ultrasoundassisted ultrasound assisted UAE (UAE microwaveassisted microwave (MAE Baill constituents technique C highresolution high resolution FTOrbitrap FT Orbitrap detection formula bases

https://doi.org/10.21577/0103-5053.20230004

Guía de práctica clínica para el manejo del cáncer de pulmón de células pequeñas: enfermedad extensa
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Cabrera-Miranda, Luis A.

; Díaz-García, Diego A.

; Corona-Cruz, José F.

; Lozano-Ruiz, Francisco J.

; Sánchez-Reyes, Roberto

; Álvarez-Bojórquez, Mario E.

; Blake-Cerda, Mónika

; Rivera-Márquez, Raúl

; López-Saucedo, Raúl A.

; Pérez-Álvarez, Sandra I.

; Bolaño-Guerra, Laura M.

; Alatorre-Alexander, Jorge A.

; Alexander-Meza, Francisco

; Barrón-Barrón, Feliciano

; Blanco-Vázquez, Yazmín C.

; Campos-Gómez, Saúl

; Mata-Moya, Dolores de la

; Figueroa-Martínez, Pedro

; González-Cisneros, Paulina E.

; Íñiguez-García, Marco A.

; Lázaro-León, Jesús M.

; Loyola-García, Ulises

; Morales-Rivera, Marcelino

; Olivares-Torres, Carlos

; Ramos-Ramírez, Maritza

; Sáenz-Frías, Julia A.

; Silva-Bravo, Fernando

; Trejo-Rosales, Rogelio

; Souto-del Bosque, Miguel

; Arrieta, Óscar

Gaceta mexicana de oncología

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jun 2023, Volume 22 N. 2 Pages 55 - 73

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Antecedentes: El cáncer de células pequeñas (CPCP) representa el 13-15% del total de neoplasias primarias de pulmón. Se caracteriza por su rapidez en la tasa de crecimiento y en el desarrollo de metástasis a distancia. Objetivos: Orientar y estandarizar el tratamiento del CPCP enfermedad extensa en México basado en evidencia clínica nacional e internacional. Material y métodos: Este documento se desarrolló como una colaboración del Instituto Nacional de Cancerología y la Sociedad Mexicana de Oncología en cumplimiento con estándares internacionales. Se integró un grupo conformado por oncólogos médicos, cirujanos oncólogos, cirujanos de tórax, radio-oncólogos y metodólogos con experiencia en revisiones sistemáticas de la literatura y guías de práctica clínica. Resultados: Se consensaron, por el método Delphi y en reuniones a distancia, las recomendaciones en CPCP enfermedad extensa, producto de preguntas de trabajo. Se identificó y evaluó la evidencia científica que responde a cada una de dichas preguntas clínicas antes de incorporarla al cuerpo de la guía. Conclusión: Esta guía proporciona recomendaciones clínicas para el manejo de la enfermedad extensa del CPCP y durante el proceso de toma de decisiones de los clínicos involucrados con su manejo en nuestro país para mejorar la calidad de la atención clínica para estos pacientes.

Abstract Background: Small cell lung cancer (SCLC) represents 13-15% of all primary lung neoplasms and is characterized by its rapid growth rate and the rapid development of distant metastases. Objectives: To guide and standardize the treatment of extensive disease small cell lung cancer in Mexico based on national and international clinical evidence. Material and methods: This document was developed as a collaboration between the National Cancer Institute and the Mexican Society of Oncology in compliance with international standards. An interdisciplinary group was formed, including medical oncologists, oncological surgeons, thoracic surgeons, radiation oncologists, and methodologists with experience in systematic reviews of the literature and clinical practice guidelines. Results: A consensus was reached, both by the Delphi method and in remote meetings, of extensive disease recommendations resulting from work questions. The scientific evidence that answers each of these clinical questions was identified and critically evaluated, before being incorporated into the body of evidence of the Guide. Conclusions: This Clinical Practice Guide provides clinical recommendations for the management of extensive disease of SCLC to contribute to the decision-making process of the clinicians involved with its management in our country, hoping that this will contribute to improving the quality of clinical care in these patients.

https://doi.org/10.24875/j.gamo.22000122

Production, gas and biochemical exchanges in pear cultivated in semi-arid region under different irrigation managements
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Gomes, Victor H. F.

; Simões, Welson L.

; Silva, Jucicléia S. da

; Garrido, Marlon da S.

; Silva, José A. B. da

; Lopes, Paulo R. C.

; Silva, Weslley O. da

; Santos, Leane R. dos

Revista Brasileira de Engenharia Agrícola e Ambiental

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may 2023, Volume 27 N. 5 Pages 335 - 342

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The objective of this study was to evaluate the influence of irrigation systems and water depths on physiological, biochemical and production processes of pear trees grown in the Brazilian semi-arid region. The experimental design was randomized blocks, with 2 × 4 factorial scheme, corresponding to two irrigation systems (drip and microsprinkler) and four irrigation depths (60, 80, 100 and 120% of the crop evapotranspiration - ETc), with four replicates. Water deficit and excess applied to plants are harmful to gas exchange as well as to biosynthesis and accumulation of carbohydrates, amino acids and proteins in leaves, compromising the cultivation cycle of pear plants grown in the Sub-Middle São Francisco region. The irrigation depth of 91.8% ETc promotes the highest production of pear (18.49 kg plant-1) under drip and microsprinkler irrigation systems, under the edaphoclimatic conditions of the Sub-Middle São Francisco region.

RESUMO O objetivo deste trabalho foi avaliar a influência de sistemas de irrigação e lâminas de irrigação sobre processos fisiológicos, bioquímicos e produtivos da pereira cultivada no Semiárido brasileiro. O delineamento experimental foi em blocos casualizados, com fatorial 2 x 4, sendo dois sistemas de irrigação (gotejamento e microaspersão) e quatro lâminas de irrigação (60; 80; 100 e 120% da evapotranspiração da cultura - ETc), com quatro repetições. A deficiência e o excesso hídrico aplicados às plantas são prejudiciais às trocas gasosas, bem como à biossíntese e acúmulo de carboidratos, aminoácidos e proteínas nas folhas, comprometendo o ciclo de cultivo de pereiras cultivadas na região do Submédio São Francisco. A lâmina de irrigação de 91,8% ETc promove a maior produção de pereira (18,49 kg planta-1) sob sistemas de irrigação por gotejamento e microaspersão, nas condições edafoclimáticas do Submédio São Francisco.

https://doi.org/10.1590/1807-1929/agriambi.v27n5p335-342

10.

Fruit production and quality of ‘Paluma’ guava with nematode-tolerant rootstock irrigated in the semi-arid region
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Simões, Welson L.

; Andrade, Victor P. M. de

; Silva, Jucicléia S. da

; Santos, Carlos A. F.

; Sousa, José S. C. de

; Calgaro, Marcelo

; Barbosa, Kaio V. F.

; Nascimento, Bruno R. do

Revista Brasileira de Engenharia Agrícola e Ambiental

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may 2023, Volume 27 N. 5 Pages 400 - 406

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT Using nematode-resistant and/or -tolerant rootstock is a strategy that has maintained guava cultivation feasible in the irrigated perimeters of the Brazilian semi-arid region. The objective was to evaluate the production, gas exchange, and fruit quality of ‘Paluma’ guava with and without nematode-tolerant rootstock under different irrigation depths and production periods. The experimental design was randomized blocks, in the mixed 2 × 4 × 2 factorial scheme, corresponding to two forms of cultivation of ‘Paluma’ guava (without and with nematode-tolerant rootstock), four irrigation depths (60, 80, 100, and 120% of crop evapotranspiration - ETc), and two production periods, with four replicates. Guava plants were evaluated for physiological, production and post-harvest quality parameters. Gas exchange in ‘Paluma’ guava leaves was higher in the second production cycle, under irrigation depths above 100% ETc, not differing with the use of the rootstock. The use of the rootstock ‘BRS Guaraçá’ promotes a greater number of fruits and production with the increase of the irrigation depth, mainly in the second half of the year, with the increase of soluble solids and titratable acidity in the fruits.

RESUMO A utilização de porta enxerto resistente e ou tolerante a nematoides é uma estratégia que tem tornado viável a manutenção dos cultivos de goiabeira nos perímetros irrigados do semiárido brasileiro. Assim, o objetivo foi avaliar a produção, trocas gasosas e qualidade dos frutos da goiabeira ‘Paluma’ com e sem o porta enxerto tolerante a nematoide sob diferentes lâminas de irrigação e épocas de produção no Semiárido Brasileiro. O delineamento experimental foi em blocos ao acaso, no esquema fatorial misto 2 × 4 × 2, sendo duas formas de cultivo da goiabeira ‘Paluma’ (sem e com o porta enxerto tolerante a nematoide), quatro lâminas de irrigação (60, 80, 100 e 120% da evapotranspiração da cultura - ETc) e duas épocas de produção, com quatro repetições. Foram realizadas avaliações fisiológicas das plantas, produção e qualidade pós-colheita. As trocas gasosas nas folhas da goiabeira ‘Paluma’ foram maiores no segundo ciclo de produção, quando irrigada com lâminas de irrigação acima de 100% da ETc, não diferindo com o uso do porta enxerto. O uso do porta-enxerto ‘BRS Guaraçá’ proporciona um maior número de frutos e produção com o aumento da lâmina de irrigação, principalmente no segundo semestre do ano, bem como o aumento do teor de sólidos solúveis e acidez nos frutos.

https://doi.org/10.1590/1807-1929/agriambi.v27n5p400-406

11.

Antifungal effect of essential oils on control of phytopathogens in stored soybean seeds
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Baiotto, Cristiano S.

; Baiotto, Luana M. C.

; Beber, Simony C.

; Kleibert, Karine R. U.

; Fell, Ana P. W.

; Babeski, Cristhian M.

; Bandeira, Willyan J. A.

; Basso, Natiane C. F.

; Silva, José A. G. da

; Colet, Christiane de F.

Revista Brasileira de Engenharia Agrícola e Ambiental

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apr 2023, Volume 27 N. 4 Pages 272 - 278

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A soja está sujeita à ocorrência de patógenos transmitidos por sementes, necessitando de tratamento fitossanitário, porém, este pode ser tóxico ao homem e ao ambiente. Objetivou-se avaliar o efeito dos óleos essenciais de alecrim (Rosmarinus officinalis) e eucalipto (Corymbia citriodora) no tratamento contra fungos fitopatogênicos em sementes de soja armazenadas. O experimento foi em delineamento inteiramente casualizado em arranjo fatorial 2 × 5, para sementes com e sem inoculação de fungos (Aspergillus flavus e Penicillium rubens) e cinco tratamentos de sementes (três óleos essenciais, controle positivo e controle negativo), com quatro repetições. Os óleos essenciais de alecrim, eucalipto e a combinação destes foram aplicados na dose de 4 mL kg-1 de sementes de soja, na concentração de 700 µL mL-1. Como controle negativo (testemunha) utilizou-se água destilada com Tween® 80 a 2% e como controle positivo o fungicida comercial Vitavax-Thiram® 200SC, conforme dosagem do fabricante. O óleo essencial de R. officinalis foi eficiente no controle de Penicillium sp. nas sementes de soja armazenadas e apresentou efeito semelhante ao controle positivo. O óleo essencial de C. citriodora reduziu a incidência de Aspergillus sp. Portanto, estes óleos essenciais têm potencial para serem utilizados no controle alternativo de patógenos de sementes de soja.

ABSTRACT Soybean is subject to occurrences of pathogens transmitted by seeds, requiring phytosanitary treatment, however, it can be toxic to humans and the environment. The objective of this study was to evaluate the effect of essential oils of rosemary (Rosmarinus officinalis) and eucalyptus (Corymbia citriodora) on the control of phytopathogenic fungi in stored soybean seeds. The experiment was carried out in a completely randomized design, using a 2 × 5 factorial arrangement consisted of seeds with and without fungal inoculation (Aspergillus flavus and Penicillium rubens) and five seed treatments (three essential oils, positive control, and negative control), with four replicates. Rosemary and eucalyptus essential oils and their combination were applied to soybean seeds at the rate of 4 mL kg-1, at a concentration of 700 µL mL-1. Distilled water with 2% Tween® 80 was used as negative control, and the commercial fungicide Vitavax-Thiram® 200SC was used as positive control, according to the manufacturers’ recommendations. The R. officinalis essential oil was efficient in the control of Penicillium sp. in stored soybean seeds and showed a similar effect to the positive control. The C. citriodora essential oil reduced the incidence of Aspergillus sp. Therefore, these essential oils have potential to be used as an alternative control of soybean seed pathogens.

https://doi.org/10.1590/1807-1929/agriambi.v27n4p272-278

12.

Physical properties of grains of cowpea genotypes
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Silva, Liliane S. da

; Carvalho, Abner J. de

; Siqueira, Wagner da C.

; Rocha, Maurisrael de M.

; Borges, Janaina B.

; Barbosa, Edmilson da S.

; Barbosa, José A. E.

Revista Brasileira de Engenharia Agrícola e Ambiental

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mar 2023, Volume 27 N. 3 Pages 216 - 222

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se avaliar propriedades físicas de grãos de genótipos de feijão-caupi. O estudo foi conduzido no Laboratório de Armazenamento e Beneficiamento de Grãos e Sementes no Instituto Federal do Norte de Minas Gerais, em Januária, MG. Os tratamentos utilizados foram 17 linhagens-elite e 11 cultivares de grãos de feijão-caupi. O delineamento experimental foi em blocos casualizados, com quatro repetições. As características avaliadas foram a densidade aparente, ângulo de repouso, massa de 1.000 grãos, forma (esfericidade e circularidade), tamanho (área projetada) dos grãos, teor de água e porosidade da massa de grãos. Os genótipos conferem diferentes tamanhos aos grãos de feijão-caupi, o que influencia na variação da densidade aparente, ângulo de repouso e massa de mil grãos. Não houve diferença estatística entre as médias para as variáveis teor de água e porosidade da massa, entre os genótipos avaliados.

ABSTRACT The present study aimed to evaluate the physical properties of cowpea genotypes grains. The study was conducted at the Laboratory for Storage and Processing of Grains and Seeds at the North Federal Institute of Minas Gerais (IFNMG) in Januária, MG, Brazil. The treatments were composed of 17 elite lines and 11 cultivars of cowpea. The experimental design was in randomized blocks with four replicates. The properties evaluated were bulk density, angle of repose, 1000-grain weight, shape (sphericity and circularity), size (projected area) of the grains, water content, and porosity of the grain mass. The genotypes give different sizes to cowpea beans, which influences the variation of bulk density, angle of repose, and 1000-grain weight. There was no statistical difference among the cowpea genotypes evaluated for water content and mass porosity.

https://doi.org/10.1590/1807-1929/agriambi.v27n3p216-222

13.

Exchange of germoplasm and genetic diversity to enrichment the Desmanthus genebank
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Silva, Ana V. C. da

; Nascimento, Isa M. R. do

; Rangel, José H. A.

; Pereira, Camila S. A.

; Muniz, Evandro N.

Revista Caatinga

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mar 2023, Volume 36 N. 1 Pages 33 - 40

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT The genus Desmanthus presents wide ecogeographical distribution and complex taxonomy. Desmanthus pernambucanus (L.) Thellung, popularly known in Brazil as Jureminha, is a leguminous species native to the Northeast region of Brazil, which stands out by its high protein content, resistance to droughts, and by presenting no toxicity to animals. The objective of this work was to evaluate the genetic diversity of 15 progenies from the Commonwealth Scientific and Industrial Research Organization (CSIRO; Australia), through germplasm exchange for enrichment of the Desmanthus genebank of Embrapa Tabuleiros Costeiros, in Nossa Senhora das Dores, SE, Brazil. Fifteen ISSR markers were used, from which 8 were selected. The progenies identified as 242, 245, 246, 255, and 268 were the most genetically distant, and the most recommended to be introduced to the genebank.

RESUMO O gênero Desmanthus apresenta ampla distribuição ecogeográfica e complexa taxonomia. O Desmanthus pernambucanus (L.) Thellung, popularmente conhecido como Jureminha, é uma leguminosa nativa do Nordeste brasileiro, que se destaca pelo elevado teor de proteína, resistência à seca e por não apresentar toxicidade aos animais. O trabalho foi desenvolvido com o objetivo de avaliar a diversidade genética de 15 progênies oriundas do CSIRO (Commonwealth Scientific and Industrial Research Organization, Austrália), através de intercâmbio de germoplasma, para o enriquecimento do Banco Ativo de Germoplasma de Desmanthus da Embrapa Tabuleiros Costeiros (BAG), em Nossa Senhora das Dores, SE, Brasil. Foram utilizados 15 marcadores ISSR, dos quais oito foram selecionados. As progênies identificadas como 242, 245, 246, 255 e 268 foram as mais distantes geneticamente, e as mais indicadas para serem introduzidas no BAG.

https://doi.org/10.1590/1983-21252023v36n104rc

14.

A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion MultiPlasmonic Multi Plasmonic DShaped D Shaped Sensor
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Romeiro, Amanda F.

; Cardoso, Markos P.

; Silva, Anderson O.

; Costa, João C. W. A.

; Giraldi, M. Thereza R.

; Santos, José L.

; Baptista, José M.

; Guerreiro, Ariel

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

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mar 2023, Volume 22 N. 1 Pages 219 - 229

Abstract: En | Text: En | PDF: En

Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple parameters of a medium using localized surface plasmon resonances (SPR) excited on a Dshaped photonic crystal fiber (PCF) partially covered by two gold layers of different thicknesses. We demonstrate that the proposed sensing platform, once customized to characterize the possible dispersive profiles of the refractive index of the analyte, also allows interrogating the temperature of a sample from a linear relationship. Since the plasmonic resonances are excited at separated and low crosstalk spectral channels, different sensing responses can be obtained simultaneously in the same location of the D-shaped PCF. These features turn out the SPR sensor a suitable tool for simultaneous monitoring of optical dispersion and temperature. other (SPR PCF (PCF thicknesses platform analyte relationship channels D shaped

https://doi.org/10.1590/2179-10742023v22i1270778

15.

Asociación entre los niveles de vitamina B12 y el deterioro cognitivo en personas mayores
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Aguilar-Navarro, Sara G.

; Carbajal-Silva, Juan C.

; Palacios-Hernández, María G. I.

; Gutiérrez-Gutierrez, Lidia A.

; Ávila-Funes, José A.

; Mimenza-Alvarado, Alberto J.

Gaceta médica de México

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feb 2023, Volume 159 N. 1 Pages 32 - 37

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Introducción: Aún es controversial si la deficiencia de vitamina B12 se asocia a alteraciones cognitivas. Objetivo: Conocer la asociación entre los niveles séricos de vitamina B12 y el desempeño cognitivo. Métodos: Se incluyeron 241 personas ≥ 60 años con medición de niveles séricos de vitamina B12. Se realizó evaluación física y cognitiva y se formaron tres grupos: cognición normal (CN), deterioro cognitivo leve (DCL) y demencia. Los niveles de vitamina B12 se clasificaron en suficiencia (> 400 pg/mL), deficiencia subclínica (201-400 pg/mL) y deficiencia absoluta (≤ 200 pg/mL). Se realizó análisis de regresión lineal multivariado para evaluar la asociación entre función cognitiva y niveles de vitamina B12 después de controlar las variables confusoras. Resultados: La media de edad fue 81.4 ± 8.0 años; 68 % fue del sexo femenino; 17.8 y 39.8 % presentaron deficiencia absoluta y subclínica de vitamina B12; 80 individuos (33 %) cumplieron los criterios de DCL y 70 (29 %), de demencia. Después de ajustar por edad, sexo y escolaridad, los sujetos con DCL y demencia tuvieron niveles más bajos de vitamina B12 comparados con aquellos con CN (p = 0.019). Conclusiones: Se observó asociación estadísticamente significativa entre el desempeño cognitivo global y los niveles bajos de vitamina B12.

Abstract Introduction: Whether vitamin B12 deficiency is associated with cognitive impairment remains controversial. Objective: To determine the association between vitamin B12 serum levels and cognitive performance. Methods: Two-hundred and forty-one adults aged ≥ 60 years who had serum vitamin B12 serum levels measurement were included. Physical and cognitive evaluation was carried out, and three groups were formed: normal cognition (NC), mild cognitive impairment (MCI) and dementia. Vitamin B12 levels were classified as sufficiency (> 400 pg/mL), subclinical deficiency (201-400 pg/mL), and absolute deficiency (≤ 200 pg/mL). Multivariate linear regression analysis was used to evaluate the association between cognitive function and vitamin B12 levels after controlling for confounding variables. Results: Mean age was 81.4 ± 8.0 years; 68% were females; 17.8 % and 39.8% had absolute and subclinical vitamin B12 deficiency, respectively; 80 individuals (33%) met the criteria for MCI, and 70 (29%), for dementia. Those with MCI and dementia had lower vitamin B12 levels in comparison with those with NC after adjusting for age, gender and educational level (p = 0.019). Conclusions: A statistically significant association was observed between global cognitive performance and levels of vitamin B12.

https://doi.org/10.24875/gmm.22000187

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