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| Registros recuperados: 14 | |
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| Torres,Salvador B; Gomes,Maryjane DA; Silva,Francisca Gleiciane da; Benedito,Clarisse P; Pereira,Francisco ECB. |
| Germination and vigor tests are essential components of seed quality control programs adopted by seed industries. We studied different procedures to perform the controlled deterioration test to identify differences in vigor among okra seed lots. Four seed lots of Colhe Bem cultivar and five seed lots of Santa Cruz 47 cultivar were submitted to the following tests: germination, seedling emergence, controlled deterioration (seeds with moisture contents of 18, 21 and 24% at 45°C for 24 and 48 hours) and moisture content. The controlled deterioration test is efficient to evaluate the physiological potential of okra seeds, and the combination of 24% water, 45°C during 24 hours is recommended. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abelmoschus esculentus; Physiological potential; Vigor; Germination. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362013000200023 |
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| Costa,Denis Santiago da; Rocha,Cartiane Rubishirley Macêdo da; Novembre,Ana Dionisia da Luz Coelho. |
| The objective of this study was to investigate the possibility of using hydric restriction as a method for evaluating vigor of soybean seeds. The soybean seeds, cultivar BRS 245RR, represented by four different seed lots, were characterized by germination and vigor. For the treatment of hydric restriction and temperature, the combination of substrate water potential and temperature were the following: deionized water (0.0 MPa); polyethylene glycol (PEG 6000) aqueous solution (-0.1, -0.3 and -0.5 MPa); and four temperatures (20 ºC, 25 ºC, 30 ºC, and 35 ºC), respectively. A completely randomized experimental design was used, with four replications per treatment, and the ANOVA was performed individually for each combination of temperature and water potential... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Glycine max; Temperature; PEG6000; Physiological potential. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000200008 |
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| Tunes,Lilian Madruga de; Avelar,Suemar Alexandre Gonçalves; Barros,Antonio Carlos Souza Albuquerque; Pedroso,Daniele Cardoso; Muniz,Marlove Fátima Brião; Menezes,Nilson Lemos de. |
| The objective of this study was to determine the responses of the wheat cultivars CD 108 and CD 111 for tolerance to organic acids. The effects of five concentrations of the three main acids formed in the soil were studied: acetic acid (0, 4, 8, 12 and 16 mM), propionic acid (0, 4, 8, 12 and 16 mM) and butyric acid (0, 2, 4, 8 and 12 mM). Tests included germination, shoot length, root length and dry weight of shoot and root. The variable root length is the most responsive variable for all the acids tested and the critical level of toxicity of acetic, propionic and butyric acids, which reduced root length by at least 50% was 9.0, 8.5 and 4.0 mM respectively. It was concluded that the presence of acetic, propionic and butyric acids in the germination... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Triticum aestivum L.; Anaerobic decomposition; Toxicity; Physiological potential. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300002 |
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| Pacheco,Mauro Vasconcelos; Silva,Clarissa Santos da; Silveira,Tiago Madruga Telesca; Hölbig,Letícia dos Santos; Harter,Fábio Schaun; Villela,Francisco Amaral. |
| Schinus terebinthifolius is a native forest species which may be used in recuperating degraded areas and in urban afforestation. In order to evaluate the efficiency of methods for separating lots of S. terebinthifolius seeds into vigor levels, five lots of seeds were qualitatively evaluated for their moisture content, germination, first count, accelerated aging (the traditional and the saturated salt methods), germination speed index, average time of germination and seedling length and dry weight. The results showed that the tests of first germination count, accelerated aging at 41 ºC for 72 hours, average time of germination, seedling length and dry matter permitted the separation of S. terebinthifolius seeds into different vigor levels. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest species; Germination; Physiological potential. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222011000400018 |
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| Medeiros,André Dantas de; Pereira,Márcio Dias; Silva,Íris Renata Freire; Capobiango,Nayara Pereira; Flores,Milton Edgar Pereira. |
| ABSTRACT New and refined technologies based on computerized procedures create the potential for automating laboratory evaluations, constituting an alternative to reduce costs and increase the decision-making capacity regarding the destination of seed lots. The objective of this study was to evaluate the efficiency of the Sistema de Análise de Plântulas (SAPL ®) free digital image processing software of seedlings in characterizing the physiological potential of maize seeds in comparison with information provided by vigor tests recommended for this species. Ten lots of maize seeds were submitted to germination, first germination count, germination speed index, seedling emergence, cold test and electrical conductivity. The results of these tests were compared... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: SAPL®; Seed technology; Physiological potential; Zea mays. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400616 |
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| Bazzo,José Henrique Bizzarri; Barbosa,André Prechlak; Cardoso,Carolina Pereira; Zucareli,Claudemir; Fonseca,Inês Cristina de Batista. |
| ABSTRACT The aim of this study was to assess the effect of the growth retardant trinexapac-ethyl on the physiological quality of seeds of different grain white oat cultivars in two growing environments. The experiments were carried out in Londrina and Mauá da Serra, Paraná State, Brazil. The experimental design was a randomized block design in a 4 × 2 factorial scheme with four replications. Treatments consisted of four white oat cultivars (IPR Afrodite, IPR Artemis, URS Corona, and URS Guria), with and without growth retardant application. Trinexapac-ethyl was applied by foliar spraying in a dose of 125 g a.i. ha−1 at the stem elongation stage between the first and second perceptible node. The following parameters were assessed: germination, first... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avena sativa L.; Growth retardant; Physiological potential; Vigor; Germination. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000400636 |
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| Santiago,Willen Ramos; Gama,Juliana Simões Nobre; Torres,Salvador Barros; Bacchetta,Gianluigi. |
| ABSTRACT Determination of seed physiological maturity allows predicting the most appropriate time for harvest, aiming to obtain seeds with high physiological potential. Physalis angulata (Solanaceae) has pharmacological and agro-industrial potential, but there is little information on its reproductive phenology. Thus, this study aimed to evaluate the physiological maturity of P. angulata seeds according to fruit age. Fruits were harvested at 7, 14, 21, 28 and 35 days after anthesis (DAA) and the following evaluations were conducted: fruit weight and diameter, seed moisture content, 100-seed dry weight, 1000-seed weight, electrical conductivity, germination, germination first count, emergence, and seedling dry weight and length. The experimental design was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanaceae; Anthesis; Harvest; Germination; Physiological potential. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300431 |
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| Marcos Filho,Julio. |
| The assessment of seed vigor has many important implications to the seed industry as a basic monitoring of seed physiological potential during different phases of seed production and a support for strategic decisions regarding the selection of high quality seedlots to meet the consumer demand. The potential attributes of seed vigor as a fundamental physiological seed characteristic and its association with field stand establishment and crop productivity has been worldwide recognized from the 1960s onward. This led to the diversification of research approaches involving the synchronization of different physiological characteristics and events that determine the potential for high performance during seed storage and after sowing. The basic objective of vigor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seed physiology; Seed analysis; Quality control; Physiological potential. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000400363 |
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| Marchi,José Luís de; Cicero,Silvio Moure. |
| ABSTRACT Seed vigor has traditionally been evaluated by physiological, biochemical and stress tolerance tests. More recently, with the use of computerized image analysis, objective information has become accessible in a relatively short period of time, with less human interference. The aim of this study was to verify the efficiency of computerized seedling image analysis by Seed Vigor Imaging System (SVIS®) to detect differences in vigor between carrot (Daucus carota L.) seed lots as compared to those provided by traditional vigor tests. Seeds from seven lots from the Brasilia cultivar were subjected to a germination test, first count of germination, speed of germination, accelerated aging with saline solution and seedling emergence; furthermore, a vigor... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota L.; Daucus carota subsp. Sativus; Quality control; Physiological potential; Seed analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000600469 |
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| Gaspar-Oliveira, Carolina Maria; UNESP; Martins, Cibele Chalita; Faculdade de Ciências Agronômicas / UNESP - Botucatu-SP; Nakagawa, João; Faculdade de Ciências Agronômicas - UNESP Botucatu-SP. |
| O objetivo do trabalho foi padronizar a metodologia de pré-condicionamento das sementes de mamoneira (Ricinus communis L.) para a avaliação do potencial fisiológico pelo teste de tetrazólio. Testaram-se os seguintes métodos de pré-condicionamento: sementes com tegumento entre papel umedecido a 30, 35 e 40°C por 6, 8, 10, 12, 14, 16 e 18h; sementes sem tegumento entre papel umedecido e sementes com tegumento imersas em água a 25, 30, 35 e 40° C por 1, 2, 3, 4, 5 e 6h. Após o pré-condicionamento, removeu-se o tegumento das sementes, que foram cortadas no sentido do comprimento e imersas na solução de tetrazólio a 0,2%, por 120 min., a 35°C. Avaliaram-se a porcentagem de germinação das sementes, o teor de água, antes e após a... |
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Palavras-chave: 5.01.00.00-9; 5.01.03.00-8; 5.01.03.03-2 Viabilidade; Mamona; Metodologia; Potencial fisiológico Agronomia; Fitotecnia; Produção e Beneficiamento de Sementes Viability; Castor bean; Methodology; Physiological potential. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6025 |
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| Registros recuperados: 14 | |
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