Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 14
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Accumulation of organic and inorganic solutes in NaCl-stressed sorghum seedlings from aged and primed seeds Scientia Agricola
Oliveira,Alexandre Bosco de; Alencar,Nara Lídia Mendes; Prisco,José Tarquinio; Gomes-Filho,Enéas.
Although it has been known that the seed's physiological potential affects its response to osmoconditioning and abiotic stresses, researches involving seed aging and priming associated to abiotic stresses are scarce. The aim of this work was to evaluate the role of seed priming on salt tolerance in sorghum seedlings from seeds with two vigor levels (aged or non-aged) and to verify the organic and inorganic solute contributions as osmoregulators in NaCl-stressed seedlings from aged and primed seeds. The combinations of two seed vigor levels (aged or not), two seed types (primed or not) and two salinity levels (exposed to NaCl at 100 mM or not) were evaluated. In low physiological quality seeds (aged seeds), priming provided an attenuation of salinity's...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sorghum bicolor; Accelerated aging; Priming; Salinity; Osmoregulation.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600004
Imagem não selecionada

Imprime registro no formato completo
Adaptability and stability of wheat genotypes according to the phenotypic index of seed vigor PAB
Szareski,Vinícius Jardel; Carvalho,Ivan Ricardo; Kehl,Kassiana; Levien,Alexandre Moscarelli; Nardino,Maicon; Dellagostin,Simone Morgan; Demari,Gustavo Henrique; Lautenchleger,Francine; Villela,Francisco Amaral; Pedó,Tiago; Souza,Velci Queiróz de; Aumonde,Tiago Zanatta.
Abstract: The objective of this work was to evaluate the adaptability and multi-trait stability of wheat (Triticum aestivum) genotypes according to the phenotypic index of seed vigor (PIV). Thirty wheat genotypes were grown in seven environments in the state of Rio Grande do Sul, Brazil, during one crop season. In each environment, a randomized complete block design with three replicates was used. The PIV was elaborated from the following traits: first germination count, germination percentage, accelerated aging, and electrical conductivity. The evaluated phenotypic index makes it possible to define macroenvironments for the production of wheat seeds with high physiological potential and to understand the implications of the genotype x environment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Accelerated aging; AMMI; Electrical conductivity; Mixed models; Seed quality.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600727
Imagem não selecionada

Imprime registro no formato completo
Expresión fisiológica y bioquímica del deterioro natural y artificial de semillas de Physalis ixocarpa Brot. Colegio de Postgraduados
Pichardo González, Juan Manuel.
México es centro de origen del tomate de cáscara (Physalis ixocarpa Brot.), el cual ocupa el cuarto lugar dentro de las especies olerícolas. La investigación en esta especie es escasa, particularmente en los procesos que ocasionan el deterioro de las semillas almacenadas, fenómeno que provoca una pérdida anual hasta de 10 % de germinación. La presente investigación se llevó a cabo en tres fases. En la primera se evaluaron respiración y contenido de ácidos grasos y su correlación con perdida de germinación y vigor en semillas deterioradas de P. ixocarpa var. CHF1-Chapingo, almacenadas hasta por siete años en una bodega sin control de clima. En la segunda fase, se evaluaron las mismas variables en semillas sometidas a envejecimiento acelerado (deterioro...
Palavras-chave: Tomate verde; Modelo; Acidos grasos; Respiración; Envejecimiento acelerado; Almacenamiento; Husk tomato; Model; Fatty acids; Respiration; Accelerated aging; Storage; Semillas; Doctorado.
Ano: 2010 URL: http://hdl.handle.net/10521/77
Imagem não selecionada

Imprime registro no formato completo
Expresión fisiológica y bioquímica del deterioro natural y artificial de semillas de Physalis ixocarpa Brot. Colegio de Postgraduados
Pichardo González, Juan Manuel.
México es centro de origen del tomate de cáscara (Physalis ixocarpa Brot.), el cual ocupa el cuarto lugar dentro de las especies olerícolas. La investigación en esta especie es escasa, particularmente en los procesos que ocasionan el deterioro de las semillas almacenadas, fenómeno que provoca una pérdida anual hasta de 10 % de germinación. La presente investigación se llevó a cabo en tres fases. En la primera se evaluaron respiración y contenido de ácidos grasos y su correlación con perdida de germinación y vigor en semillas deterioradas de P. ixocarpa var. CHF1-Chapingo, almacenadas hasta por siete años en una bodega sin control de clima. En la segunda fase, se evaluaron las mismas variables en semillas sometidas a envejecimiento acelerado (deterioro...
Palavras-chave: Tomate verde; Modelo; Acidos grasos; Respiración; Envejecimiento acelerado; Almacenamiento; Husk tomato; Model; Fatty acids; Respiration; Accelerated aging; Storage; Semillas; Doctorado.
Ano: 2010 URL: http://hdl.handle.net/10521/77
Imagem não selecionada

Imprime registro no formato completo
Physiological performance of seed and seedling of tomato under different temperatures Sci. Agrar.Paran. / SAP
Gehling, Vânia Marques; Mendonça, André Oliveira; Anjos, Flávio Cunha; Allgayer, Grégor D'Ávila; Villela, Francisco Amaral; Aumonde, Tiago Zanatta.
The objective of this study was to evaluate the physiological performance of seeds and seedlings of tomato under the influence of different temperatures. The experiment was conducted in the Didactic Laboratory of Seed Analysis – ERS, UFPel. Gaúcho® tomato seeds were used. Treatments consisted of the constant temperatures 18, 20, 22, 24 and 26 ºC. To determine the physiological performance of the seeds and seedlings were employed germination assessments, first count, germination speed index, accelerated aging, cold test, shoot and primary root length, dry matter of roots and shoots, seedling emergence at 14 and 21 days after sowing, and emergence speed index. The results showed that tomato seed germination is not affected by the temperatures 18 to 26 ºC....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Accelerated aging; Abiotic stress; Solanum lycopersicon; Cold test..
Ano: 2017 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13647
Imagem não selecionada

Imprime registro no formato completo
Physiological quality and seed respiration of primed Jatropha curcas seeds Acta Botanica
Horbach,Micheli Angelica; Dranski,João Alexandre Lopes; Malavasi,Ubirajara Contro; Malavasi,Marlene de Matos.
ABSTRACT Seed deterioration is a natural and irreversible process. Nevertheless, seed priming with water and antioxidants can minimize oxidative damage in oilseeds, resulting in attenuation of seed deterioration. The objective of this assay was to evaluate seed priming on respiratory activity of Jatropha curcas submitted to accelerated aging. Seeds from two provenances (Janauba and Pedro J. Caballero) were submitted to three priming treatments (control, immersion in deionized water, and with 750 µmol L-1 of ascorbic acid) and treated for accelerated aging at 41 °C for 72 h. The results showed that the priming of J. curcas seeds promoted tolerance to accelerated aging. Primed seeds, with ascorbic acid from Janauba and deionized water from Pedro J....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Accelerated aging; Ascorbic acid; Gas chromatography; Oil seeds; Physic nut.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100063
Imagem não selecionada

Imprime registro no formato completo
Physiological quality of dual-purpose wheat seeds from plants subjected to artificial defoliation Ciência Rural
Rodolfo,Giselle Regina; Souza,Clovis Arruda; Coelho,Cileide Maria Medeiros; Belizario,Karla Katy.
ABSTRACT: Defoliation may play a role in source-sink relationships and reduce the physiological quality of seeds. The main goal of this research was to investigate the effect of successive defoliations on physiological quality of wheat seeds in 'BRS Umbu' and 'BRS Tarumã' cultivars. Two experiments were carried out using a complete randomized design with four replications. Treatments included plants without defoliation (0), and those where 1, 2, and 3 consecutives defoliations were applied. Seeds from each treatment originated from four different lots. Data were analyzed with one-way analysis of variance and means compared by Tukey test at 5% statistical probability. Germination was not affected by defoliation, or the number of cuts, but an effect on vigor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Triticum aestivum; Cuts; Germination; Accelerated aging.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100201
Imagem não selecionada

Imprime registro no formato completo
Relationship of black layer and milk line development on maize seed maturity Scientia Agricola
Vieira,R.D.; Minohara,L.; Carvalho,N.M. de; Bergamaschi,M.C.M..
The relationship of black layer and milk line development on maize seed maturity was evaluated under tropical conditions. Seed moisture (g.kg-1), standard germination - SG (7 days, 25°C), and vigor, using accelerated aging-AA (96 hours, 42°C and 100% of RH), cold test-CT only in 1991/92 (7 days at 10°C and 7 days at 25°C) and electrical conductivity-EC (four 50-seed samples, 24 hours imbibition at 25°C) and milk line and black layer formation (using a five-stage rating system) were determined at 3 to 4 days intervals, using two genotypes (hybrid CX 133 and variety IAC 100) during the crop seasons of 1990/91 and 1991/92. The results showed that physiological maturity was reached before stage 4, based on seed germination and vigor (AA and CT) values, which...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Germination; Vigor; Accelerated aging; Cold test; Electrical conductivity.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161995000100023
Imagem não selecionada

Imprime registro no formato completo
Seed physiological potential of “dedo-de-moça” pepper in relation to maturation stages and rest periods of the fruits Horticultura Brasileira
Gonçalves,Leandro SA; Gomes,Gisely Paula; Damasceno Junior,Clério Valentin; Queiroz,Robison Alessandro de; Takahashi,Lucia SA; Costa,Denis S da; Nunes,Maria PBA.
ABSTRACT One of the main problems in pepper seed production is the uneven maturation of the fruits due to the continuous flowering period of the plant, making it difficult to harvest all the fruits at the same time. Thus, studies on fruit maturation stage and seed physiological potential are extremely important in order to identify the appropriate harvest time, avoiding seed deterioration. The aim of this study was to evaluate the physiological potential of five genotypes of “dedo de moça” pepper seeds (Capsicum baccatum var. pendulum) in three maturation stages (green, orange and red), with and without 10-day rest period after harvest date. Physiological potential and vigor of seeds were evaluated through germination tests (first count, accelerated aging...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsicum baccatum var. pendulum; Accelerated aging; Germination; Vigor.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400486
Imagem não selecionada

Imprime registro no formato completo
Teor de oleo e proteina em sementes de soja oriundas de tres regioes edafoclimaticas distintas no estado do Parana. Repositório Alice
MANDARINO, J. M. G.; KRZYZANOWSKI, F. C.; FRANÇA-NETO, J. B.; HENNING, A. A.; VAL, W.M.C..
Determinou-se os teores percentuais de óleo e proteína nas sementes de doze genótipos de soja de ciclos precoce e semi-precoce, e de dez genótipos de ciclo médio, oriundas dos ensaios regionais de avaliação no Estado do Paraná, nas regiões de Londrina, Campo Mourão e Palotina. Observou-se que não ocorreram diferenças significativas para proteína nos genótipos precoces e semi-precoces nas regiões de Londrina e Campo Mourão, com teores médios de 42,04% e 39,81%, respectivamente. Na região de Palotina, provavelmente devido a temperaturas mais elevadas o teor percentual médio de proteína encontrado nas sementes foi maior (43,23%), sendo o menor percentual para a cultivar BR 16 (39,81%) e o maior para a cultivar EMBRAPA 1 (44,84%). Nos genótipos de ciclo médio,...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Soja; Semente; Absorcao de agua; Estresse hidrico; Germinacao; Envelhecimento acelerado; Brasil; Sao Paulo; Soybean; Seed; Water absorption; Stress; Germination; Accelerated aging; Brazil.
Ano: 1993 URL: http://www.alice.cnptia.embrapa.br/handle/doc/444668
Imagem não selecionada

Imprime registro no formato completo
The effect of high dilutions of Pulsatilla nigricans on the vigour of soybean seeds subjected to accelerated aging - doi: 10.4025/actasciagron.v34i2.13043 Agronomy
Silva, Hingrid Ariane da; Universidade Estadual de Maringá; Valderrama, Angela Parizotto; Universidade Estadual de Maringá; Moreira, Flavia Carolina; Universidades Estadual de Maringá; Marques, Rosimar Maria; Universidade Estadual de Maringá; Reis, Bruno; Universidade Estadual de Maringá; Bonato, Carlos Moacir; Universidade Estadual de Maringá.
The aim of this study was to evaluate the effect of high dilutions of Pulsatilla nigricans in dinamisations 6, 12, 18, 24 and 30 CH on the vigour of soybean seeds subjected to accelerated aging. The experiment was conducted according to a randomised design with 6 treatments and 10 replicates. The treatments consisted of dinamisations 6, 12, 18, 24 and 30 CH and a distilled-water control. After the treatments, the seeds were subjected to accelerated aging (48h at 42ºC) in a growth chamber (25 ± 2ºC). The study evaluated the germination, the length of primary roots and shoots, the fresh weight of roots and shoots and the enzymatic activity of peroxidase (POX-EC1.11.1.7). The variables were analysed by ANOVA, and the means were compared using the Scott-Knott...
Tipo: Pesquisa controlada Palavras-chave: 5.00.00.00-4; 5.01.00.00-9; 5.02.01.06-9 dinamisation; Accelerated aging; Germination growth; Homeopathy; Glycine max Fisiologia de Plantas Cultivadas.
Ano: 2012 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/13043
Imagem não selecionada

Imprime registro no formato completo
การเร่งความเก่าของข้าวสารพันธุ์หอมปทุมธานี 1 ด้วยคลื่นไมโครเวฟ Thai Agricultural
Sirichai Songsermpong; Benjamas Wilaithumlongkul; Saengthip Thaithanakom.
Rice aging is an important characteristic for cooked rice. Aged rice is needed by consumer especially Thai people and other people in the world. It takes at least 4 months to age rice. Accelerated aging of rice can be done by heating. This research used a continuous microwave of 1,000 watts to accelerate aging of milled rice cv. Patumthani 1. The initial moisture content of milled rice was 13%. The milled rice was treated with microwave by using speed number 4,5, 6,7, 8 (speed 0.0164, 0.0233, 0.0269, 0.0287, 0.0318 m/s) with the time of heating 34.85, 24.43, 21.17, 19.22, 17.91 seconds per round. The test was done for 1, 2 and 3 rounds and the other is not treated with microwave (control). The rice is stored at room temperature (28±2 ºC). The milled rice...
Tipo: PhysicalObject Palavras-chave: Accelerated aging; Milled rice; Microwave; Patumthani 1; Cooking properties; ข้าวสาร; คลื่นไมโครเวฟ; พันธุ์ปทุมธานี 1; คุณภาพการหุง; การเร่งอายุ; สมบัติการหุง.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5422
Imagem não selecionada

Imprime registro no formato completo
การเร่งอายุเมล็ดพันธุ์ข้าว พันธุ์ กข14 เพื่อประเมินอายุการเก็บรักษาในเขตภาคเหนือ Thai Agricultural
Yawvaluck Gunyamee; Anchalee Prasertsak.
Present study was conducted to evaluate RD14 seed accelerated aging for longevity in humid tropic at Phrae Rice Research Center. Rice seeds from wet season, 2012 were stored in plastic bags at room temperature and were monitored for seed quality every month. Moreover, the rice seed samples were aliquoted for Accelerated Againg Test (AA) with 100% relative humidity and the temperature condition was varied from 44 46 and 48 0c for 72 96 120 and 144 hrs, respectively. The results revealed the correlation between seed germination from each temperature and time accelerated aging and seed stored in plastic bags at room temperature. It was shown that RD14 seed at moisture content 13% in plastic bag could be stored for 6 months with more than 80 % germination....
Tipo: Collection Palavras-chave: Seed; Accelerated aging; Longevity; เมล็ดพันธุ์ข้าว; การเร่งอายุ; การเก็บรักษา.
Ano: 2015 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5901
Imagem não selecionada

Imprime registro no formato completo
การเร่งอายุเมล็ดพันธุ์ข้าวเพื่อประเมินอายุการเก็บรักษาในเขตร้อนชื้น Thai Agricultural
Marisa Songkrairat; Anchalee Prasertsak.
Rice seed accelerated aging for longevity evaluation in humid tropic was conducted in order to study the temperature and optimum duration for evaluation of seed longivity at Krabi Rice Research Center during 2012-2013. Rice seeds from rice planted in both wet and dry seasons were used. By storing the rice seeds in plastic bags at room temperature and every month rice seeds were monitored and quality testing, another part seeds were aged in nearly 100 percent relative humidity at 40, 42, 44 and 46 0C for 24, 48, 72 and 96 hours. Seed germination from each temperature and time accelerated aging was correlated to seed stored in plastic bags at room temperature. The result showed that rice seed at moisture content below 12 percent in plastic bag could be...
Tipo: PhysicalObject Palavras-chave: Rice seed; Accelerated aging; Shelf life; Longevity; Temperature; Seed quality; Krabi province; Humid tropical; เมล็ดพันธุ์ข้าว; พันธุ์ปทุมธานี 1; การเก็บรักษาเมล็ดพันธุ์; อายุการเก็บรักษา; การทำนาย; การเร่งอายุ; คุณภาพเมล็ดพันธุ์; จังหวัดกระบี่; เขตร้อนชื้น.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5662
Registros recuperados: 14
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional