Data/hora: 12/06/2024 14:41:50

Provedor de dados: | 52
País: | Brazil
Título: | Effects of different temperatures on the performance of seeds germination of Cecropia pachystachya Trec. (Cecropiaceae)
Autores: | Pilati,Rosemari; Andrian,Izabel de Fátima; Carneiro,José W. P.
Data: | 1999-01-01
Ano: | 1999
Palavras-chave: | Cecropia pachystachya; Seed germination; Weibull function.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000200010
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89131999000200010
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.42 n.2 1999
Fonte: | info:eu-repo/semantics/openAccess