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au:Casali, Carlos Alberto

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Soil organic matter fractions in an Oxisol under tillage systems and winter cover crops for 26 years in the Brazilian subtropics
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Amadori, Caroline

; Conceição, Paulo César

; Casali, Carlos Alberto

; Canalli, Lutécia Beatriz dos Santos

; Calegari, Ademir

; Dieckow, Jeferson

Bragantia

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2022, Volume 81 elocation e3622

Abstract: En | Text: En | PDF: En

ABSTRACT The improvement of carbon (C) accumulation in soils has been one of the main purposes of the conservation systems in agricultural production. This study aimed to assess the long-term effect of conventional tillage (CT) and no-tillage (NT) combined with winter cover crops, black oat and oilseed radish, and fallow on C accumulation and stabilization in a very clayey Oxisol in Southern Brazil. Soil samples were collected in the 0-0.05, 0.05-0.10 and 0.10-0.20 m layers of a 26-year-old experiment. Distribution of size-class aggregates, C stock in aggregates, total C stock, and C stocks in the physical fractions, free particulate organic matter (free-POM), occluded particulate organic matter (occluded-POM) and mineral-associated organic matter (min-OM) were assessed. NT had a higher percentage of macroaggregates and C stock in this size-class, and also higher C stock in bulk soil, free-POM and occluded-POM fractions than CT in 0-0.05 m (Tukey’s test p < 0.05), due to higher input of biomass and minimum soil mobilization in NT. Oat and radish had higher C stock in macroaggregates than fallow in 0.05-0.10 m (Tukey’s test p < 0.05). Radish had the highest C stock in the free-POM (0-0.05 m). Fallow decreased the stabilization of macroaggregates and C accumulation in free-POM, due to the lower C input from aboveground biomass over the years. In conclusion, NT after 26 years improved C accumulation and stabilization, mainly in the superficial layer and in POM fractions, and winter cover crops favored the formation and stability of macroaggregates.

https://doi.org/10.1590/1678-4499.20210352

Consenso argentino en gestión efectiva de clínicas de anticoagulación para uso de antagonistas de la vitamina K
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Ceresetto, José M

; Duboscq, Cristina

; Korin, Jorge

; Fondevila, Carlos

; Casais, Patricia

; Rossi, Andrea

; Scazziota, Alejandra

; Martinuzzo, Marta

; Aris Cancela, María Esther

; Rosa, Claudio

; Pombo, Gonzalo

; Guimelli, Carla

; Adamczuk, Yolanda

; Martí, Alejandra

; Penchasky, Diana

; Riveros, Dardo

; Puente, Dolores

; Celebrin, Lucía

; Molnar, Soledad

; Meschengieser, Susana

; Castro Ríos, Miguel

; Blanco, Alicia

; Hendler, Héctor

; Brodsky, Andrés

; Sánchez Luceros, Analía

; Negri Aranguren, Pedro

; Fedele, José Luis

; Merlo, Claudio

; Raña, Pablo

; Gumpel, Carina

; Colorio, Cecilia

; Grand, Beatriz

; Canónico, Virginia

; Rossi, Eleonora

; Colimodio, Paulo

; Orlando, Sergio

; Fassi, Daniel

; Arias, Mirta

; Viudez, Laura

; Farreras, Roberto

; Martínez, Pablo

; Ferro, Hugo

; Casali, Claudia

; Baques, Alejandra

; Arbesú, Guillermo

; Viñuales, Susana

; Medina, Fernanda

; Cortés, Verónica

; Gallo, María Del Carmen

; Ehelou, Ludmila

; Barrera, Luis

; Rey, Irene

; De Larrañaga, Gabriela

; Figueroa, Flavia

; Vilaseca, Alicia

; Kuri, Isabel

; Maneyro, Alberto

; Otaran, María

; Xavier, David Luis

; Garbiero, Susana

; Salviú, Julieta

; Fontenla, Patricia

; Eckhardt, Andrea

; Bomparola, Carolina

; Fornasiero, Laura

Medicina (Buenos Aires)

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sep 2020, Volume 80 Suppl. 4 Pages 1 - 26

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

Abstract Treating an anticoagulated patient with vitamin K antagonists (VKA) remains a challenge, especially in areas where dicoumarins are still the first drug of choice due to the cost of other oral anticoagulants. Anticoagulation clinics have proven to be the most efficient and safe way to avoid thrombotic and hemorrhagic complications and to keep patients in optimal treatment range. However, they require adequate infrastructure and trained personnel to work properly. In this Argentine consensus we propose a series of guidelines for the effective management of the anticoagulation clinics. The goal is to achieve the excellence in both the clinical healthcare and the hemostasis laboratory for the anticoagulated patient. The criteria developed in the document were agreed upon by a large group of expert specialists in hematology and biochemistry from all over the country. The criteria presented here must always be considered when indicating VKA although they had to be adapted to the unequal reality of each center. Taking these premises into consideration will allow us to optimize the management of the anticoagulated patient with VKA and thus minimize thrombotic and hemorrhagic intercurrences, in order to honor our promise not to harm the patient.

Resumen El tratamiento de un paciente anticoagulado con antagonistas de la vitamina K (AVK) sigue siendo un desafío, especialmente en regiones donde, por el costo, los dicumarínicos son todavía la alternativa más buscada a la hora de elegir un anticoagulante oral. Las clínicas de anticoagulación han demostrado ser la forma más eficiente y segura de evitar complicaciones trombóticas y hemorrágicas y de mantener al paciente en rango óptimo de tratamiento. Sin embargo, requieren de una adecuada infraestructura y personal capacitado para que funcionen eficientemente. En este consenso argentino se propone una serie de parámetros para la gestión efectiva de una clínica de anticoagulación. El objetivo es lograr una elevada calidad desde el punto de vista clínico-asistencial a través de un laboratorio de hemostasia de excelencia. Los criterios desarrollados en el documento fueron consensuados por un amplio grupo de expertos especialistas en hematología y en bioquímica de todo el país. Estos criterios deben adaptarse a la irregular disponibilidad de recursos de cada centro, pero siempre se los debe tener en cuenta a la hora de indicar el tratamiento anticoagulante con estas drogas. Tener en consideración estas premisas nos permitirá optimizar la atención del enfermo anticoagulado con AVK y de esta forma minimizar las intercurrencias trombóticas y hemorrágicas a las que está expuesto, para así honrar nuestra promesa de no dañar al paciente.

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Soil Microbiological Attributes Under Ecological Restoration Technologies in Subtropical Forest
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Rosa, Graciele Ferreira da

; Casali, Carlos Alberto

; Bechara, Fernando Campanha

; Viceli, Jéssica Maiara

; Moreira, Flavia Lima

; Guimarães, Bruna Schneider

; Ferreira, André Francisco

; Peppe, Isabella Araújo

; Acosta, Amanda Cristina Beal

; Dôres, Letícia de Alcântara

; Feix, Bruna Larissa

Brazilian Archives of Biology and Technology

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2020, Volume 63 N. spe elocation e20190651

Abstract: En | Text: En | PDF: En

Abstract To accelerate the recovery of degraded environments, it is necessary to use ecological restoration techniques, which require validation according to the ecosystem conditions where are implemented. This work aimed to evaluate soil microbiological attributes under different ecological restoration technologies in a subtropical forest. The study was conducted at UTFPR-DV, southwest of Paraná, in an ecotone between Mixed Ombrophilous Forest and Semideciduous Seasonal Forest and on an Oxisol. In December 2010, a tillage area of at least 17 years old was isolated and the passive restoration, tree planting and nucleation treatments were installed in 40x54 m plots and four replications. In November 2018 the soil was sampled in these plots and in a native forest area as a reference. There were calculated soil organic carbon content (OCC) and microbiological attributes such as microbial biomass N and C (NMIC and CMIC), basal respiration, fungal spore content and the metabolic (qCO2) and microbial quotient (MICq). It can be concluded that nucleation technology can restore soil microbiological attributes but has not yet reached the conditions of a natural environment. Passive restoration is not a good technology for restoring soil microbiological attributes. The higher contents of CMIC, NMIC, OCC, MICq and fungal spores in the soil under native forest compared to ecological restoration technologies indicate that eight years of adoption of these techniques have not yet been enough to fully recover soil microbiological activity.

https://doi.org/10.1590/1678-4324-solo-2020190651 508 downloads

Depressed cardiac autonomic modulation in patients with chronic kidney disease
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Oliveira, Carlos Alberto de

; Brito Junior, Helio Lima de

; Bastos, Marcus Gomes

; Oliveira, Felipe Gomes de

; Casali, Thais Gomes

; Bignoto, Tiago Costa

; Fernandes, Natalia Maria da Silva

; Beraldo, Antonio Fernando de Castro Alves

; Paula, Rogério Baumgratz de

Brazilian Journal of Nephrology

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jun 2014, Volume 36 N. 2 Pages 155 - 162

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

Introdução: Um sistema nervoso autônomo disfuncionante tem sido relacionado a eventos cardiovasculares em pacientes com doença renal crônica (DRC), com vários estudos demonstrando redução da variabilidade da frequência cardíaca e o desenvolvimento de arritmias complexas nestes pacientes. Objetivo: Avaliar o balanço simpático-vagal em pacientes com DRC em tratamento conservador. Métodos: Em estudo transversal, foram avaliados pacientes com DRC estágios 3, 4 e 5 não dialítico pareados para indivíduos saudáveis. Todos os voluntários foram submetidos à monitorização contínua da frequência cardíaca durante, por 20 minutos na posição supina (período pré-inclinado), seguido de inclinação passiva a 70 graus por mais 20 minutos (período inclinado). A análise espectral da variabilidade da frequência cardíaca foi usada para se obter a baixa frequência normalizada (LF nu), indicativa da atividade simpática, e a alta frequência normalizada (HF nu), indicativa da atividade parassimpática. A razão entre essas duas variáveis (LF nu/HF nu) é representativa do balanço simpático-vagal. Resultados: Durante o período pré-inclinado, não houve diferença significativa da variabilidade da frequência cardíaca entre os pacientes com DRC e o grupo controle. No entanto, após a inclinação, os pacientes com DRC apresentaram menor atividade simpática, maior atividade parassimpática e menor balanço simpático-vagal quando comparados com o grupo controle. Comparados com pacientes em estágio 3, pacientes em estágio 5 apresentaram menor razão LFnu/HFnu, sugerindo piora do balanço simpático-vagal nos estágios mais avançados da DRC. Conclusão: Pacientes com DRC não dialíticos apresentam diminuição da variabilidade da frequência cardíaca, compatível com disfunção autonômica cardíaca precoce no curso da DRC.

Introduction: A dysfunctional autonomic nervous system (ANS) has also been recognized as an important mechanism contributing to the poor outcome in CKD patients, with several studies reporting a reduction in heart rate variability (HRV). Objective: Evaluate the sympathovagal balance in patients with chronic kidney disease on conservative treatment. Methods: In a cross-sectional study, patients with CKD stages 3, 4 and 5 not yet on dialysis (CKD group) and age-matched healthy subjects (CON group) underwent continuous heart rate recording during two twenty-minute periods in the supine position (pre-inclined), followed by passive postural inclination at 70° (inclined period). Power spectral analysis of the heart rate variability was used to assess the normalized low frequency (LFnu), indicative of sympathetic activity, and the normalized high frequency (HFnu), indicative of parasympathetic activity. The LFnu/HFnu ratio represented sympathovagal balance. Results: After tilting, CKD patients had lower sympathetic activity, higher parasympathetic activity, and lower sympathovagal balance than patients in the CON group. Compared to patients in stage 3, patients in stage 5 had a lower LFnu/HFnu ratio, suggesting a more pronounced impairment of sympathovagal balance as the disease progresses. Conclusion: CKD patients not yet on dialysis have reduced HRV, indicating cardiac autonomic dysfunction early in the course of CKD.

https://doi.org/10.5935/0101-2800.20140025 3346 downloads Cited 1 time in SciELO

Evaluation of Sikora instead of SMP buffer to estimate the potential acidity of brazilian soils
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Santanna, Maria Alice

; Kaminski, João

; Rheinheimer, Danilo dos Santos

; Toledo, Jaderson dos Anjos

; Casali, Carlos Alberto

Revista Brasileira de Ciência do Solo

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oct 2011, Volume 35 N. 5 Pages 1707 - 1715

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

Apesar da eficiência do tampão SMP na estimativa da acidez do solo, atualmente vêm aumentando as preocupações ambientais devido à presença de p-nitrofenol e cromato de potássio. O objetivo deste trabalho foi testar o método proposto por Sikora (2006) como alternativa ao tampão SMP (Tedesco et al., 1995), que é utilizado para estimar a acidez potencial dos solos da Região Sul do Brasil. O teste foi feito com 21 solos, coletados na Região Sul e no Cerrado. Os valores de acidez potencial real desses solos variaram de 35,95 a 4,02 cmol c kg-1 de solo, refletindo ampla variação de acidez. O tampão Sikora não mimetizou o tampão SMP adaptado utilizado na Região Sul do Brasil, já que o primeiro apresentou baixa capacidade de distinguir entre solos com acidez diferente em razão, provavelmente, da sua alta capacidade-tampão, em comparação com a solução SMP adaptada.

Despite the efficiency of the Shoemaker, McLean, Pratt (SMP) buffer method in estimating soil acidity, the presence of p-nitrophenol and potassium chromate in the solution, both hazardous substances, has caused increasing environmental concerns. The purpose of this study was to test Sikora method (Sikora, 2006) as an alternative to the adapted SMP buffer method, generally used to estimate potential acidity of Southern Brazilian soils. For the test, 21 soils in the South and Cerrado regions of Brazil were sampled. (1) The potential acidity values of these soils range from 35.95 to 4.02 cmol c kg-1 of soil, reflecting a wide acidity variation. The Sikora buffer does not mimic the adapted SMP buffer used in Southern Brazil, since the former has a low ability to distinguish soils with different acidity from each other, probably due to the higher buffer capacity than of the adapted SMP solution.

4383 downloads Cited 2 times in SciELO

Formas e dessorção de cobre em solos cultivados com videira na Serra Gaúcha do Rio Grande do Sul
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Casali, Carlos Alberto

; Moterle, Diovane Freire

; Rheinheimer, Danilo dos Santos

; Brunetto, Gustavo

; Corcini, Adão Leonel Mello

; Kaminski, João

; Melo, George Wellington Bastos de

Revista Brasileira de Ciência do Solo

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aug 2008, Volume 32 N. 4 Pages 1479 - 1487

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

As aplicações sucessivas de fungicidas cúpricos em videiras podem aumentar o teor de cobre total do solo e modificar a sua distribuição e dessorção no perfil do solo. O trabalho objetivou determinar as formas de cobre e a sua dessorção em solos cultivados com videira e submetidos a sucessivas aplicações de fungicidas cúpricos. Amostras de um solo Neossolo Litólico e Cambissolo Húmico foram coletadas em 2006, nas camadas de 0-20 e 20-40 cm, em um vinhedo com 40 anos, em Bento Gonçalves (RS). Amostras de um solo Neossolo Litólico foram coletadas nas mesmas profundidades, em área de mata natural próxima do vinhedo, e os resultados de análise foram usados como referência. Os solos coletados foram conduzidos ao Laboratório de Química e Fertilidade de Solo da Universidade Federal de Santa Maria, onde foram secos, moídos, passados em peneira de malha de 2 mm, e submetidos ao fracionamento químico do cobre pela metodologia de Tessier et al. (1979) e à cinética de dessorção de cobre com EDTA 0,05 mol L-1, em pH 6,0, conforme proposto por Fangueiro et al. (2005). Os resultados mostram que a aplicação de fungicidas cúpricos em videiras aumenta o teor total e das frações biodisponíveis de cobre do solo, inclusive na camada de 20-40 cm. A maior parte do cobre dos solos cultivados com a videira encontra-se retido na fração mineral, e do solo sob mata natural, na matéria orgânica principalmente. A maior quantidade do Cu, independentemente dos materiais adsorventes nos solos cultivados com videira, é facilmente dessorvível e pode ser considerada em equilíbrio rápido com o cobre da solução.

Successive applications of cupric fungicides to grapevine can increase total copper concentration in the soil and modify its desorption in the soil profile. This study was carried out in 2006 in the soil chemistry and fertility laboratory of the Universidade Federal de Santa Maria to evaluate copper forms and desorption dynamics in Udorthent and Haplumbrept soils (in the layers 0-20 and 20-40 cm) under grapevine for 40 years and under successive applications of cupric fungicides. The soils were collected in the wine valley region of Bento Gonçalves, RS, in Southern Brazil. Udorthent samples were also collected (at 0-20 and 20-40 cm) in a forest near the vineyard and the data used as reference. Soil samples were dried, ground and sieved (2 mm), and copper was fractionated using the Tessier methodology (Tessier et al., 1979) and copper desorption with EDTA 0.05 mol L-1 pH 6.0, using the methodology of Fangueiro (Fangueiro et al., 2005). Results showed that the application of cupric fungicides to grapevine increases total copper and its available fractions, including in the 20-40 cm layer. The major part of copper of the soils cultivated with grapevine is retained in the mineral fraction, whereas under natural forest, organic matter is the main reservoir of the element. The greatest partion of copper, independent of the adsorbent material in the soils growing grapevine, is easily desorbable and can be considered of rapid equilibrium with the copper of the solution.

4165 downloads Cited 11 times in SciELO

Análise genética em um dialelo de alface
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Lédo, Francisco José da Silva

; Casali, Vicente Wagner Dias

; Cruz, Cosme Damião

; Lédo, Carlos Alberto da Silva

Pesquisa Agropecuária Brasileira

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mar 2001, Volume 36 N. 3 Pages 493 - 499

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

Este trabalho teve por objetivo estimar parâmetros genéticos em um dialelo de alface, segundo o método de Jinks & Hayman. O experimento foi conduzido em casa de vegetação, na Universidade Federal de Viçosa, no período de 20/10 a 12/12/96. O delineamento experimental adotado foi o de blocos casualizados, com três repetições. Utilizaram-se vasos com 4,5 dm3 de substrato e uma planta por vaso (parcela). Foram avaliadas seis cultivares de alface (Vitória de Verão, Nativa, Regina de Verão, Maravilha de Verão, Grand Rapids e Mimosa) e seus respectivos híbridos F1. Avaliaram-se os seguintes caracteres: matéria fresca da parte aérea (MFPA); matéria seca da parte aérea (MSPA), folhas (MSF) e raiz (MSR); número de folhas/planta (NUF); e comprimento do caule (CC). Foram detectadas evidências de epistasia nos caracteres MSPA, NUF e CC. Na MFPA a variação de natureza aditiva contribuiu predominantemente para a variabilidade genética observada entre pais e seus híbridos F1. Evidenciou-se a predominância de efeitos gênicos de dominância no controle gênico dos caracteres MSF e MSR. As estimativas do coeficiente de determinação genotípico no sentido amplo (<img SRC="http:/img/fbpe/pab/v36n3/4792fr1.gif" ALIGN="absmiddle">) sobre MFPA, MSF e MSR foram de 0,84, 0,85 e 0,90, respectivamente, e restrito (<img SRC="http:/img/fbpe/pab/v36n3/4792fr2.gif" ALIGN="absmiddle">) 0,66, 0,45 e 0,49.

This work aimed to estimate genetic parameters in a lettuce diallel, according to the Jinks & Hayman's method. The experiment was carried out in a greenhouse, at the Universidade Federal de Viçosa, from October 20 to December 12, 1996. The experimental design used was a randomized complete blocks, with three replications. Pots with 4,5 dm³ of substrate and one plant/pot (plot) were used. Six lettuce cultivars and their respective F1 hybrids were evaluated. The following characters were evaluated: fresh matter of aerial part (FMAP); dry matter of aerial part (DMAP), leaves (DML) and roots (DMR); number of leaves/plant (NUL); and stem height (SH). Some evidences of epistasis were detected for DMAP, NUL and SH characters. In FMAP the variation of additive nature contributes predominantly to the genetic variability observed between parents and F1. The prevalence of dominance gene effects on the control ofDML and DMR characters were evident. The estimates of genotypic determination coefficient on wide sense (<img src="http:/img/fbpe/pab/v36n3/4792fr3.gif" ALIGN="absmiddle">) in FMAP, DML and DMR were 0.84, 0.85 and 0.90, and restricted sense (<img SRC="http:/img/fbpe/pab/v36n3/4792fr2.gif" ALIGN="absmiddle">) 0.66, 0.45 and 0.49.

2311 downloads Cited 1 time in SciELO

CAPACIDADE DE COMBINAÇÃO ENTRE LINHAGENS DE PIMENTÃO DIFERINDO NA TOLERÂNCIA AO BAIXO TEOR DE FÓSFORO NO SOLO
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OLIVEIRA, VALTER RODRIGUES

; CASALI, VICENTE WAGNER DIAS

; CRUZ, COSME DAMIÃO

; PEREIRA, PAULO ROBERTO GOMES

; SCAPIM, CARLOS ALBERTO

Bragantia

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1998, Volume 57 N. 2 Pages 203 - 214

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

Seis linhagens de pimentão (Capsicum annuum L.) diferindo na tolerância ao baixo teor de fósforo (P) no solo, os híbridos F1 e seus recíprocos, obtidos de um cruzamento dialélico completo, foram avaliados em casa de vegetação, para estimar as capacidades combinatórias em relação à acumulação de matéria seca total, matéria seca da parte aérea, matéria seca das raízes, razão raiz:parte aérea, área foliar, altura da planta, conteúdo de P total na planta e coeficiente de translocação de P. Ambas as capacidades, geral (CGC) e específica de combinação (CEC), foram estatisticamente significativas, com o componente quadrático associado à CEC superior ao relativo à CGC em todas as características avaliadas, evidenciando predominância de efeitos gênicos não aditivos nos cruzamentos. Linhagens tolerantes à baixa disponibilidade de P exibiram elevadas estimativas positivas da CGC, foram as mais divergentes e seus híbridos revelaram médias elevadas para a maioria das características avaliadas, enquanto comportamento inverso foi apresentado pelas linhagens intolerantes. Levando-se em consideração o desempenho das linhagens, as heteroses e o efeito da CEC, destacaram-se as combinações P-141-190-F16 x P-142-403-F11, P-142-215-F15 x P-142-270-F12, P-141-152-F14 x P-142-215-F15, P-141-152-F14 x P-142-403-F11 e P-141-150-F10 x P-141-152-F14. Não houve ocorrência de diferenças entre cruzamentos recíprocos, em relação às características avaliadas

Six lines of sweet pepper (Capsicum annuum L.) differing in tolerance to low phosphorus (P) content in the soil, their F1 hybrids and reciprocals, obtained from a complete diallel cross, were assessed under greenhouse conditions in order to estimate their combining abilities for total dry matter accumulation (shoot) dry matter, root dry matter, root (shoot) ratio, leaf area, plant height, total P content in the plant and P translocation coefficient. Both general (GCA) and specific (SCA) combining abilities were statistically significant with quadratic component associed to SCA which was always greater in magnitude than GCA for all traits, showing a predominance of non-additive genic effects in crosses. In addition to high positive GCA estimates, the tolerant lines to low P availability were the most divergent and their hybrids showed high average values for most of the assessed traits, while an opposite behaviour was observed in the tolerant lines. Considering the performance of the lines, the heterosis and the SCA effect, the following are promissing combinations: P-141-190--F16 x P-142-403-F11, P-142-215-F15 x P-142-270-F12, P-141-152-F14 x P-142-215-F15, P-141-152-F14 x P-142-403-F11 and P-141-150-F10 x P-141-152-F14. No difference was found among reciprocal crosses in relation to the assessed traits.

1540 downloads Cited 1 time in SciELO

MELHORAMENTO DO TOMATEIRO: II. PROCEDIMENTO DE GARDNER E EBERHART NA ANÁLISE HETERÓTICA DE CARACTERÍSTICAS MORFOAGRONÔMICAS E DA QUALIDADE DOS FRUTOS
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AMARAL JÚNIOR, ANTÔNIO TEIXEIRA DO

; CASALI, VICENTE WAGNER DIAS

; CRUZ, COSME DAMIÃO

; FINGER, FERNANDO LUIZ

; SCAPIM, CARLOS ALBERTO

Bragantia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

1997, Volume 56 N. 1 Pages 33 - 46

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

Cinco cultivares de tomateiro (Lycopersicon esculentum Mill.) - Ângela I.5100, Floradade, IPA-05, Jumbo AG-592 e Santa Clara - e seus p (p - 1)/2 cruzamentos foram avaliados quanto a dez características morfoagronômicas e cinco relacionadas à qualidade dos frutos, pelo método de Gardner e Eberhart. Os resultados evidenciaram suficiente variabilidade entre os parentais para a maioria das características, indicando uma situação favorável à aplicação do melhoramento genético. A potencialização das características `teor de carotenóides totais' e `conteúdo de beta-caroteno' nos frutos poderá ser alcançada por meio dos intercruzamentos envolvendo os cultivares Ângela I.5100, Floradade e Jumbo AG-592, enquanto apenas a combinação Jumbo AG-592 x Ângela I.5100 revelou possibilidade de incrementos nos teores de vitamina C. Considerando-se conjuntamente as características morfoagronômicas e as relacionadas à qualidade dos frutos, conclui-se que os cultivares Ângela I.5100, Floradade e Santa Clara são os de maior potencial para compor intercruzamentos.

Tomato cultivars Ângela I.5100, Floradade, IPA-05, Jumbo AG-592, Santa Clara and their diallel crosses, not including reciprocals, were evaluated as to ten morphologycal and five fruit quality traits, using Gardner and Eberhart's methodology. Enough variability among parental was detected for the majority of the studied traits. The results clearly indicated that significant increases in total carotenoid and beta-carotene contents are to be expected in crosses involving Ângela I.5100, Floradade and Jumbo AG-592 while the cross AG-592 x Ângela I.5100 is the most proper for increases in vitamin C content. Taking into account all the characters tested, cultivar Ângela I.5100, Floradade and Santa Clara showed the best potentials for plant breding purposes.

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Análise dialélica da capacidade combinatória de cultivares de tomateiro
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Metrics
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Amaral Júnior, Antonio Teixeira do

; Casali, Vicente Wagner Dias

; Scapim, Carlos Alberto

; Silva, Derly José Henriques da

; Cruz, Cosme Damião

Bragantia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

1996, Volume 55 N. 1 Pages 75 - 81

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

Os cultivares de tomateiro (Lycopersicon esculentum Mill.) Ângela I.5100, Floradade, IPA-05, IPA-06, Jumbo e Santa Clara, e os 15 possíveis híbridos F1s foram avaliados quanto à produção de frutos comerciáveis (PFC), espessura média da polpa (EMP), número médio de lóculos por fruto (NML) e teor de sólidos solúveis (TSS), com o objetivo de identificar parentais e híbridos promissores para programas de melhoramento. A análise dialélica, com base no método de Griffing, revelou a predominância dos efeitos gênicos não aditivos para o caráter PFC, ao contrário de EMP, enquanto NML acusou equivalência para os efeitos aditivos e não aditivos. Em decorrência das estimativas da capacidade geral de combinação (Gi) os cultivares Ângela I.5100, IPA-05 e IPA-06 são indicados para o desenvolvimento de programas de melhoramento.

The tomato (Lycopersicon esculentum Mill.) cultivars Ângela I.5100, Floradade, IPA-05, IPA-06, Jumbo and Santa Clara and their diallelic crosses were evaluated for commercial fruit weight (CFW), average thickness of the pule (ATP), average number of loculi per fruit (NLF) and content of soluble solids (CSS). The objective was to identify the superior progenitors and the promising hybrids for plant breeding programs. The diallel analysis based on Griffings Methodology, showed a prevailing non-additive genic effects for CFW, the opposite being observed for ATP meanwhile NLF showed an equal value for additive and non-additive effects. Based on general combining ability estimates, the cultivars Ângela I.5100, IPA-05 and IPA-06, are indicated to plant breeding programs.

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