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| Registros recuperados: 15 | |
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| RUIZ,GLORIA ANNABELL COBEÑA; SALOMÃO,LUIZ CARLOS CHAMHUM; SIQUEIRA,DALMO LOPES DE; REZENDE,SEBASTIÃO TAVARES DE; LINS,LEILA CRISTINA ROSA DE. |
| ABSTRACT A major problem in post-harvest handling of bananas is the individual detachment of the fruit from the hands. This study aimed to establishing the relationship between carbohydrate concentration and enzyme activity in the pedicel region of three cultivars of bananas, resistant and susceptible to natural dropping, during post-harvest ripening, and the susceptibility of bananas to finger dropping. Cultivars ‘Terra’ (plantain, AAB group) and ‘Prata’ (banana, AAB group) triploids and the ‘Prata Graúda’ (banana, AAAB group) tetraploid were used. The experiment was distributed in split plots, with three plots (cultivars) and five subplots (peel color stages) in a completely randomized design with three replications and three fruits per sample unit.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa sp.; Pectinametylesterase; Polygalacturonase; Starch. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300301 |
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| DECARLOS NETO,ANTÔNIO; SIQUEIRA,DALMO LOPES DE; PEREIRA,PAULO ROBERTO GOMES; ALVAREZ V.,VICTOR HUGO. |
| Objetivou-se, neste trabalho, avaliar os teores foliares de clorofila total (a+b) em porta-enxertos de citros cultivados em tubetes, como índices no diagnóstico do estado nutricional de N, de acordo com adição das doses de N (0; 400; 800; 1.600; 3.200 e 4.800 mg/dm³ de N no substrato). Os teores foliares de clorofila total apresentaram alta correlação positiva com a altura, diâmetro do caule, massa da matéria seca da parte aérea e raízes, área foliar e teor de N-NO3 da parte aérea dos porta-enxertos, indicando a possibilidade de serem utilizados como índices para o diagnóstico de N em porta-enxertos cultivados em tubetes. Aos 120 dias após a semeadura, os teores foliares máximos de clorofila total dos porta-enxertos 'Tangelo-Orlando', 'Cravo',... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citros; Viveiro; Diagnose; Teor de clorofila; Adubação; Nutrição; Nitrogênio. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000100044 |
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| ZUCOLOTO,MOISES; ANTONIOLLI,LUCIMARA ROGERIA; SIQUEIRA,DALMO LOPES DE; CZERMAINSKI,ANA BEATRIZ COSTA. |
| ABSTRACT ‘Bartlett’ pears from different harvest dates were assessed regarding to cold storage potential and reduction of physiological disorder incidence. Three harvests, the first (HD1), second (HD2), and third (HD3), were carried out at weekly intervals. The pears were assessed after the harvest, with no exposition to the temperature conditioning, after 20, 40, 60, 80, 100 and 120 days at 0 ± 1 °C and 90 ± 5% RH and after three and six days at room temperature (20 ± 1 °C). Fruit from the early harvest (HD1) showed the smallest incidence of physiological disorder during both cold and room temperature storage. The disorder symptoms became apparent in HD1 fruit after 20 days at cold storage followed by three days at 20 °C, whereas HD2 and HD3 fruit showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pyrus communis L.; Cold storage; Flesh firmness and acceptance. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200401 |
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| DECARLOS NETO,ANTÔNIO; SIQUEIRA,DALMO LOPES DE; PEREIRA,PAULO ROBERTO GOMES; ALVAREZ V.,VICTOR HUGO. |
| Este trabalho teve como objetivo avaliar os efeitos de doses de N (0; 400; 800; 1.600; 3.200 e 4.800 mg/dm³ de N no substrato) sobre o crescimento de porta-enxertos de citros cultivados em tubetes. Os porta-enxertos limoeiros-'Cravo' e 'Volkameriano' mostraram maior crescimento, sendo que as tangerineiras-'Cleópatra' e 'Sunki' apresentaram crescimento intermediário, e o híbrido 'Tangelo-Orlando' exibiu crescimento inferior. A adição de doses crescentes de N, utilizando-se do fertilizante uréia em cobertura, promoveu acréscimos nos teores de N-total na matéria seca da parte aérea destes porta-enxertos e aumento no crescimento dos porta-enxertos. Aos 120 dias após a semeadura, o limoeiro-'Cravo' apresentou altura máxima de 13,3 cm quando adubado com 1.240... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citros; Viveiro; Adubação; Nutrição; Nitrogênio. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000100043 |
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| AQUINO,CÉSAR FERNANDES; SALOMÃO,LUIZ CARLOS CHAMHUM; RIBEIRO,SÔNIA MACHADO ROCHA; SIQUEIRA,DALMO LOPES DE; CECON,PAULO ROBERTO. |
| ABSTRACT The aim of this study was to quantify and compare the levels of carbohydrates and phenolic compounds and the antioxidant activity in the pulp and peel of 15 banana cultivars in two ripening stages. Four bunches per cultivar were harvested in the pre-climacteric stage, six fruits were used by sample unit. Fruits were analyzed in the pre-climacteric stage and after ripening. Total, reducing and non-reducing soluble sugars, starch, phenolic compounds and antioxidant activity were evaluated. Cultivar and ripening stage influenced all characteristics analyzed. Unripe pulp and peel had small percentage of sugar, but high percentage of starch, especially ‘Terrinha’ and ‘Marmelo’ cultivars. AAB and ABB cultivars presented the highest percentages of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; Soluble sugars; Starch; Free radical. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000400901 |
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| VECCELLI,JULIANA CRISTINA; SIQUEIRA,DALMO LOPES DE. |
| ABSTRACT The aim of this study was to evaluate the response of mango plants ( L) ‘Mangifera indicaTommy Atkins’ cultivar to different NaCl concentrations. In this experiment, plants were grown in pots with washed sand and nutrient solution with 0, 10, 20 and 30 mM NaCl for 120 days. After this period, young leaves from the last growth spurt were harvested in a randomized block design, dried at 65 °C for 72 h and ground in a ball mill. Samples were dried again in an oven at 60 °C for 24 h and then the relative abundance of 13C and 12C isotopes was determined using mass spectrometer Sercon 20-20 isotope ratio model. Data were used to determine the carbon isotopic discrimination (?). It was concluded that ‘Tommy Atkins’ mango trees submitted to 30 mmol L-1... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Mangifera indica; Salinity; Isotopes. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000703001 |
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| SALOMÃO,LUIZ CARLOS CHAMHUM; PEREIRA,WALTER ESFRAIN; DUARTE,ROBERTA CRISTINA COTTA; SIQUEIRA,DALMO LOPES DE. |
| A estaquia é uma das técnicas de propagação vegetativa do maracujazeiro que permite a obtenção de pomares uniformes, bem como de porta-enxertos que confiram ganhos de produtividade e/ou resistência a pragas e doenças. Porém, as informações sobre o melhor tipo de estaca a ser usado não são conclusivas. Com o objetivo de avaliar o desempenho de vários tipos de estacas, como material para formação de mudas de maracujazeiros, foi conduzido um experimento no Setor de Fruticultura da Universidade Federal de Viçosa. Os fatores em estudo foram estacas apicais, medianas e basais do último surto de crescimento dos maracujazeiros doce (Passiflora alata Dryand.) e amarelo (P. edulis f. flavicarpa O. Deg.). Cinqüenta dias após o início do experimento, foram avaliados a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora alata; P. edulis f. flavicarpa; Propagação vegetativa. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000100036 |
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| LINS,LEILA CRISTINA ROSA; SALOMÃO,LUIZ CARLOS CHAMHUM; CECON,PAULO ROBERTO; SIQUEIRA,DALMO LOPES DE. |
| The aim of the study was to assess the influence of season and different substrates on rooting of air layers of lychee (Litchi chinensisSonn.) for the production of seedlings to ensure the formation of uniform and productive orchards. Air layers were done in plants of the Bengal cultivar using leafy and healthy woody branches, with about 0.010 to 0.015 m in diameter, in which were performed complete girdling with 0.020 m wide at a distance of 0.30 to 0.40 m below the apex. Then the branches were wrapped in moistened substrate. The layering was made at six times of theyear (January, March, May, July, September and November) and two substrates were used (coconut fiber and sphagnum) in a 6 x 2 factorial design in a randomized block with ten replicates. After... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Litchi chinensis Sonn.; Rooting; Substratum. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452015000200480 |
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| VIECCELLI,JULIANA CRISTINA; SIQUEIRA,DALMO LOPES DE; BISPO,WILKA MESSNER DA SILVA; LEMOS,LORENA MOREIRA CARVALHO. |
| ABSTRACT Although mango is one of the tropical fruits of greater interest in the world trade, literature concerning their rootstocks (characteristics and utilization) is scarce. This study aimed to characterize mango plants from cv. Imbú, widely used as rootstock in the Zona da Mata region, State of Minas Gerais (MG), Brazil. Though fruits of this cultivar do not present desirable commercial characteristics, this study allowed us to characterize part of plant morphology and fill a gap in the literature, providing subsidies for future investigations. For such, 'Imbú' plants (˜ 4-years old) from the collection of the Universidade Federal de Viçosa, located in Viçosa -MG were evaluated. The descriptors were: (i) leaf blade division;(ii) leaf composition;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rootstock; Mangifera indica; Morphology. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300802 |
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| ARANTES,ALESSANDRO DE MAGALHÃES; DONATO,SÉRGIO LUIZ RODRIGUES; SIQUEIRA,DALMO LOPES DE; COELHO,EUGÊNIO FERREIRA; SILVA,TÂNIA SANTOS. |
| ABSTRACT This study aimed to evaluate gas exchange of banana Prata in two production cycles in semiarid environment. Six cultivars were used as treatments arranged into a completely randomized design with five replications and four plants per plot. For physiological characteristics, it was considered a factorial arrangement of 6x14x2, six cultivars, 14 periods (months), two readings, 8:00 and 14:00 in each period. The rates of gas exchange, the carboxylation efficiency and the instantaneous efficiency of water use were higher at 8:00 and lower at 14:00, with rare exceptions. The ‘BRS Platina’ had a higher leaf temperature, higher transpiration and lower water use efficiency. ‘Prata-Anã’, ‘FHIA-18’ and ‘Maravilha’ expressed lower leaf temperature and lower... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Musa spp.; AAB and AAAB; Physiological variables. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000200601 |
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| MACHADO,DANIEL LUCAS MAGALHÃES; SIQUEIRA,DALMO LOPES DE; SALOMÃO,LUIZ CARLOS CHAMHUM; CECON,PAULO ROBERTO; SILVA,DANIELLE FABÍOLA PEREIRA DA. |
| ABSTRACT The aim of this study was to evaluate 12 rootstock varieties on the development and quality of ‘Tahiti’ acid lime fruits cultivated in the municipality of Jaíba, MG. Seedlings were planted in an experimental orchard in November 2008, using 8 x 5 meters spacing and drip irrigation. The experiment was conducted using a scion cultivar (Tahiti acid lime, IAC-5 cultivar) and the following 12 rootstocks: ‘Rangpur’ lime, ‘Troyer’ citrange, ‘Carrizo’ citrange, 1707 hybrid (Rangpur lime x Swingle trifoliate), 1710 and 1697 citrandarins, 1708citradia, ‘Swingle’ citrumelo, ‘Cleopatra’ and ‘Sunki’ mandarins, ‘Volkamer’ lemon, and ‘Limeira’ trifoliate. A randomized block design with five replicates and three trees per plot was used. Trunk diameter of both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus latifolia Tan.; Vegetative growth; Fruit quality. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000100701 |
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| Registros recuperados: 15 | |
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