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  • FapUNIFESP (SciELO)  (5)
  • Alves, Charline Zaratin  (5)
  • 1
    Online Resource
    Online Resource
    Qualidade fisiológica de sementes de Eruca sativa L. pelo teste de deterioração controlada
    FapUNIFESP (SciELO) ; 2011
    In:  Ciência Rural Vol. 41, No. 12 ( 2011-12), p. 2090-2095
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 41, No. 12 ( 2011-12), p. 2090-2095
    Abstract: The quality of the seed used in the process of agricultural production is one of the main factors to be considered for the implantation of the culture, having consensus between all the segments, on the importance of the vigor of the seeds and the necessity to evaluate it. This research had the purpose of studying proccedings for controlled deterioration test, to verify their sensitivity for identifying different vigor levels of arugula seed, cv. 'Cultivada' and 'Gigante', using five lots of seeds for each. The seeds were subjected to the determination of water content and tests of germination, first germination, emergence, and to verify the efficiency in identifying different levels of vigor, were studied variations in the controlled deterioration test (seed moisture content of 18, 21 and 24%, at 45oC for 24 and 48 hours). The experiment was arranged in completely randomized design and the results were submitted to analysis of variance and means were compared by Tukey test at 5% probability. The results obtained for the controlled deterioration test showed that there was no relation with the initial assessments of the physiological potential, especially for testing of emergency. It was concluded that under the conditions tested, this test was not sensitive enough to assess the potential physiologic arugula, for both cultivars.
    Type of Medium: Online Resource
    ISSN: 0103-8478
    URL: Article
    DOI: 10.1590/S0103-84782011001200009
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2011
    detail.hit.zdb_id: 2025834-3
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  • 2
    Online Resource
    Online Resource
    Teste de condutividade elétrica na avaliação do potencial fisiológico de sementes de berinjela
    FapUNIFESP (SciELO) ; 2012
    In:  Ciência Rural Vol. 42, No. 6 ( 2012-06), p. 975-980
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 42, No. 6 ( 2012-06), p. 975-980
    Abstract: The physiological quality is one of the main objects of studies involving seeds, as they may suffer a series of degenerative changes of various types which lead to reduction of its vigor. To compensate the deficiencies of the germination test in the characterization of lots, vigor tests have been developed, which are already well characterized for the main crops, but recently applied to vegetables seeds. So, this study aimed to evaluate the use of electrical conductivity in the physiological potential of eggplant seeds. Four seed lots of eggplant cultivar 'Preta Comprida', were tested for germination, first count germination, seedling emergence, speed of emergence and accelerated aging. For the electrical conductivity were studied variations in the volume of water (50 and 75mL), temperature (25 and 30°C), number of seeds (25 and 50) and imbibed (1, 2, 4, 6, 12, 18 and 24 hours). The electrical conductivity test was efficient for the eggplant seeds, and the soaking time can be reduced to four hours, but using 50 seeds failed to differentiate between batches. The volume of 25mL and 30°C was the most favorable condition for the consistent ordering of the lots on the force. The best conditions for the electrical conductivity in eggplant seed is the use of 25 seeds in 50mL of water for four hours at 30°C.
    Type of Medium: Online Resource
    ISSN: 0103-8478
    URL: Article
    DOI: 10.1590/S0103-84782012000600004
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2012
    detail.hit.zdb_id: 2025834-3
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  • 3
    Online Resource
    Online Resource
    Qualidade fisiológica de sementes de jiló pelo teste de envelhecimento acelerado
    FapUNIFESP (SciELO) ; 2012
    In:  Ciência Rural Vol. 42, No. 1 ( 2012), p. 58-63
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 42, No. 1 ( 2012), p. 58-63
    Abstract: This study was to evaluate the physiological potential of jilo seeds through of accelerated aging test, as well as the use of saturated solution of NaCl in the control of water uptake by seeds during the test. To this end, four seed lots of jilo cultivar 'Morro Grande Verde Escuro', were tested for germination, first count germination, seedling emergence, rate of emergency, electrical conductivity and accelerated aging (41°C for 48, 72 and 96 hours, with and without the use of saturated solution of NaCl). The use of saturated NaCl solution decreases the absorption of water by seeds of eggplant during the accelerated aging test, resulting in a deterioration rate less pronounced, allowing the scoring of the lots at different levels of vigor. Seed exposure for a period of 48 hours is a promising option for assessing the physiological quality of seeds of jilo.
    Type of Medium: Online Resource
    ISSN: 0103-8478
    URL: Article
    DOI: 10.1590/S0103-84782012000100010
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2012
    detail.hit.zdb_id: 2025834-3
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  • 4
    Online Resource
    Online Resource
    Teste de germinação em sementes de Cucumis metuliferus E. Mey
    FapUNIFESP (SciELO) ; 2014
    In:  Ciência Rural Vol. 44, No. 2 ( 2014-02), p. 228-234
    Details
    In: Ciência Rural, FapUNIFESP (SciELO), Vol. 44, No. 2 ( 2014-02), p. 228-234
    Abstract: The kiwano (Cucumis metuliferus E. Mey) is a cop of wide geographical distribution, with a significant increase in relation to marketing worldwide due not only to his life being too long at room temperature, as well as to the constant search market consumer for exotic products. Thus, demand and marketing of its seeds are increasing, creating the need for the establishment of state and federal standards and the development of appropriate methodologies for evaluating the quality of them. Thus, the objective of this study was to determine the methodology for the substrate, temperature and time count for the germination test on Kiwano seeds. The evaluations consisted of four substrates: paper roll, on paper, in sand and on sand at four temperatures: 20, 25 e 30°C constant and 20-30°C alternating. The effect of substrate and temperature on seed performance was evaluated using germination, speed index and mean germination time. The experiment was conducted in a completely randomized design with treatments arranged in a factorial 4x4 (substrates x temperatures) with four replications. The test germination in seeds of kiwano should be done on the paper roll at constant temperature of 25°C or alternating 20-30°C, with counting starting and ending in the fifth and tenth day, respectively.
    Type of Medium: Online Resource
    ISSN: 0103-8478
    URL: Article
    DOI: 10.1590/S0103-84782014000200006
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2014
    detail.hit.zdb_id: 2025834-3
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  • 5
    Online Resource
    Online Resource
    ROOT PROTRUSION IN QUALITY EVALUATION OF CHIA SEEDS
    FapUNIFESP (SciELO) ; 2019
    In:  Revista Caatinga Vol. 32, No. 1 ( 2019-03), p. 282-287
    Details
    In: Revista Caatinga, FapUNIFESP (SciELO), Vol. 32, No. 1 ( 2019-03), p. 282-287
    Abstract: RESUMO O teste de protrusão radicular é um teste de vigor, baseando no princípio de que sementes com alto vigor emitem a raiz primária mais rápido em comparação com as menos vigorosas. A chia é uma planta propagada por sementes, sendo motivo de pesquisa pelos seus benefícios a saúde, mas com poucas informações técnicas sobre a cultura. O objetivo do trabalho foi adequar à metodologia do teste de protrusão radicular para determinação do vigor de lotes de sementes de chia. Utilizou-se cinco lotes de sementes de chia, submetidos à avaliação da qualidade inicial por meio dos testes de germinação e vigor (primeira contagem de germinação, emergência e índice de velocidade de emergência). O teste de protrusão radicular foi realizado nas temperaturas de 20, 25 e 30 ºC, e avaliado a cada duas horas até 42 horas, onde se obteve a estabilidade da protrusão, e sendo utilizado o critério de contagem de 2 mm de raiz primária. O teste de protrusão radicular na temperatura de 20 ºC não distinguiu os lotes semelhantes à emergência. A 25 °C, foi possível classificar os lotes de forma semelhante à emergência após 30 horas. A temperatura de 30 °C foi eficiente na aceleração da protrusão radicular e separação dos lotes de sementes. O teste de protrusão radicular é sensível para detectar diferenças de vigor entre os lotes de sementes de chia, devendo ser conduzido por 30 horas a 25 ºC.
    Type of Medium: Online Resource
    ISSN: 1983-2125 , 0100-316X
    URL: Article
    DOI: 10.1590/1983-21252019v32n129rc
    Language: English
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2019
    detail.hit.zdb_id: 2409827-9
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