Métodos de avaliação da qualidade fisiológica de sementes de brócolos

Mello, Simone da Costa; Spínola, Mauro de Mesquita; Minami, Keigo

doi:10.1590/s0103-90161999000500017

Cited by 23 publications

(18 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It was further observed that, in the volume of 25 mL, higher readings electrical conductivity were taken compared to volumes of 50 and 75 mL for the amount of both 25 and 50 seeds (Tables 7 and 8) which was already expected, since soaking in a large volume of water results in greater dilution of leachates. Mello et al (1999) and Torres and Marcos-Filho (2005) also observed similar results with broccoli seeds, where the ratio of 25 mL of water and 50 seeds at a temperature of 25 ºC, provided information comparable to those obtained in germination tests and seedling emergence, in the identification of the physiological potential of the lots assessed. The test when performed with 50 seeds was more efficient for the classification of lots, proving that Vieira (1994); Hampton and TeKrony (1995).…”

Section: Resultssupporting

confidence: 62%

Assessment of the physiological potential of spinach seeds (Tetragonia tetragonoides (Pall.) Kuntze)

et al. 2013

View full text Add to dashboard Cite

-The efficiency of vigor tests in assessing the physiological potential of seeds depends on their standardization for different species. In this context, the research aimed to study specific methodologies to evaluate the vigor of spinach seeds (Tetragonia tetragonoides). For this purpose, five lots of spinach seed cv. New Zealand were submitted to germination, first count of germination, seedling emergence in the field, accelerated aging (with and without use of saturated solution of NaCl at 41and 45 ºC for 24,48 and 72 hours), controlled deterioration(18,21 and 24% seed water content adjustments for 24 hours at 45 ºC) and electrical conductivity tests with variations inwater volume (25, 50 and 75 mL), seed quantity (25 and 50) and soaking period (1, 2, 4, 8,12, 16 and 24 hours) at 25 ºC. The first count test allowed obtaining preliminary information about seed vigor, and other tests in general showed similarity with seedling emergence in the field. Thus, it was concluded that traditional accelerated aging test 24 h /41 ºC and accelerated aging test with saturated salt solution for 24 h at 41 ºC and 45 ºC, and controlled deterioration test with 21% seed water content / 24 h / 45 ºC were all efficient for evaluating the physiological potential of spinach seeds.

show abstract

Section: Resultssupporting

confidence: 62%

Assessment of the physiological potential of spinach seeds (Tetragonia tetragonoides (Pall.) Kuntze)

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Também se observa que a concentração de lixiviados aumenta durante o tempo de imersão, conforme relatado por Mello et al (1999), em sementes de brócolos; Vieira et al (1996), em sementes de feijão e soja; e Vanzolini & Nakagawa (1998), em sementes de amendoim.…”

Section: Resultsunclassified

Teste de condutividade elétrica para avaliação do potencial fisiológico de sementes de canola

2012

View full text Add to dashboard Cite

Electrical conductivity test for the evaluation of physiological potential of seed lots of canolaThis work aimed to determinate the best water volume and immersion period used on electrical conductivity test for the evaluation of physiological potential of seed lots of canola. Four seed lots of canola were evaluated, which were firstly characterized with respect to quality through tests of germination, first germination count, seedling length and emergence on sand. The electrical conductivity test was carried out at 25ºC. Seeds were imbibed in 25 and 50 mL of distilled water during 4, 8, 16 and 24 hours. The experimental design used was completely randomized, with four replicates of 50 seeds. Data was analyzed in a factorial scheme with four seed lots, two water volumes and five immersion periods. The electrical conductivity test carried out under immersion of 50 seeds during 8 hours in 25mL at 25ºC of deionized water is efficient to evaluate the physiological potential of seed lots of canola.

show abstract

“…Fato esse também verificado neste estudo. Resultados semelhantes foram encontrados em trabalhos com sementes de pepino (Trigo e Trigo, 1995 a), brócolis (Mello et al, 1999e Mendonça et al, 2000, tomate (Panobianco e Marcos Filho, 2001) e melancia (Bhering et al, 2003). Pode-se observar na tabela 2, os resultados de teor de água inicial e após a realização do teste de envelhecimento acelerado tradicional e com uso de solução salina não saturada de NaCl, evidenciando que o uso da solução salina promove redução da captação de água pelas sementes de mogango durante o período de envelhecimento, de modo que ao final do teste as sementes atingiram teores de água sensivelmente inferiores aos verificados com a utilização do método tradicional.…”

Section: Resultsunclassified

“…Piana et al (1995) verificaram que o teste de envelhecimento acelerado foi um dos que mais se relacionou à emergência das plântulas de cebola em campo, além de identificar lotes com diferentes níveis de vigor. Resultados semelhantes foram obtidos com sementes de cenoura (Trigo e Trigo, 1995b), pepino (Trigo e Trigo, 1995a), brócolos (Mello et al, 1999) e tomate (Panobianco e Marcos Filho, 2001).…”

Section: Introductionunclassified

Potencial fisiológico de sementes de mogango e desempenho das plantas no campo

Malone¹,

Villela²,

Mauch³

2008

Rev. bras. sementes

View full text Add to dashboard Cite

RESUMO -O objetivo desse estudo foi comparar a eficiência de diferentes testes de vigor na avaliação da qualidade fisiológica em sementes de mogango, relacionando os resultados obtidos em laboratório com o desempenho das plantas no campo. Os lotes foram avaliados pelos testes de germinação, primeira contagem, envelhecimento acelerado tradicional e com uso de solução salina não saturada de NaCl, (ambos a 41ºC/48 e 72h) e comparados com a emergência e o desenvolvimento inicial das plantas no campo. As plantas foram avaliadas aos quinze, vinte cinco e trinta e cinco dias após a semeadura. Foram determinados o comprimento de parte aérea e de raiz, número de folhas e massa seca de planta. O delineamento experimental foi inteiramente casualizado, utilizando-se quatro tratamentos (lotes) com quatro repetições. Conclui-se que o teste de envelhecimento acelerado tradicional por 72h permitiu classificar os lotes em diferentes níveis de vigor, e é o mais adequado para avaliação do potencial fisiológico de sementes de mogango. Diferenças acentuadas quanto de vigor entre lotes de sementes de mogango influenciaram o desempenho inicial da cultura, especialmente o comprimento da parte aérea e a matéria seca da planta.Termos para Indexação: Cucurbita pepo, vigor, estabelecimento de plantas. MOGANGO PHYSIOLOGICAL SEED POTENTIAL AND FIELD PERFORMANCEABSTRACT -The objective of this study was to compare different vigor tests used to evaluate physiological quality in mogango seeds, and the relationship between the results obtained in the laboratory and field performance. The lots were evaluated by the following tests: standard germination, first count of germination, traditional accelerated aging and with non-saturated NaCl solution (both at 41ºC/48 and 72h) and compared with emergence and plant development. The plants were evaluated at fifteen, twenty five and thirty five days after sowing. Plant height, number of leaves and dry weight were estimated. A randomized complete block design was used with four treatments (lots) and four replications. Based on the results it was concluded that traditional 72h accelerated aging provided a better differentiation among mogango seed lots with different physiological quality. Variations in mogango seed lots can affect the initial plant performance, especially plant height and dry weight.

show abstract

Métodos de avaliação da qualidade fisiológica de sementes de brócolos

Cited by 23 publications

References 3 publications

Assessment of the physiological potential of spinach seeds (Tetragonia tetragonoides (Pall.) Kuntze)

Assessment of the physiological potential of spinach seeds (Tetragonia tetragonoides (Pall.) Kuntze)

Teste de condutividade elétrica para avaliação do potencial fisiológico de sementes de canola

Potencial fisiológico de sementes de mogango e desempenho das plantas no campo

Contact Info

Product

Resources

About