| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Effects of different temperatures on the performance of seeds germination of Cecropia pachystachya Trec. (Cecropiaceae)
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| Autores: |
Pilati,Rosemari
Andrian,Izabel de Fátima
Carneiro,José W. P.
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| Data: |
1999-01-01
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| Ano: |
1999
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| Palavras-chave: |
Cecropia pachystachya
Seed germination
Weibull function
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| Resumo: |
Seed germination of Cecropia pachystachya Trec. was investigated at 25, 30, and 35ºC using fluorescent day lights. Ten replicates each of 200 seeds were used in each thermal treatment. Germitest® paper, CEL-065®, and 11x11x5 cm Gerbox® were also used. The frequencies of radicle protrusions were counted at consecutive two hour intervals. The cumulative frequencies were combined with the distribution of Weibull using the following model: Y = M (1 - exp (-(t/b)c)). The best performance was achieved with the temperature of 30ºC ( M, 95.29%). Time to achieve 60.23% of seed germination (0.6321 x 95.29%) was 99.35 h with a spread of 7.19. All model/data set combinations had close to linear.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200010
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89131999000200010
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.42 n.2 1999
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| Direitos: |
info:eu-repo/semantics/openAccess
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