In vitro germination and growth of babassu (orbygnia phalerata Mart.) embryos subjected to different drying temperatures
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Data
2012-06
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Resumo
The aim of this study was to evaluate the physiological quality of babassu (Orbygnia phalerata Mart.)
embryos in relation to drying rate. The fruits were kept in a dry chamber with forced air circulation at 57
± 2°C and 37 ± 2°C for 0, 6 and 11 days. An interaction between the drying time and temperature on
water loss was not observed. Fruits dried at 37 ± 2°C failed to achieve the same water content values as
those dried at 57 ± 2°C. Embryos dehydrated at 37 ± 2°C remained viable even after 11 days of drying,
while embryos dehydrated at 57 ± 2°C were dead after 6 days of drying. Germination percentages above
67% were obtained for all times at drying 37°C, even for seeds with 9% water content, which highlights
a possible orthodox behavior. Under the experimental conditions of the present study, drying embryos
at 57 ± 2°C decreased the percentage and speed of germination as well as the initial growth of
seedlings.
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Arecaceae, Orthodox seeds, Desiccation tolerance
Citação
RUBIO NETO, Aurélio; FREITAS, Bethânia Silva Morais de; SOUZA, Apolyana Lorrayne; SILVA, Fabiano Guimarães; SALES, Juliana de Fátima; PIRES, Larissa Leandro. In vitro germination and growth of babassu (orbygnia phalerata Mart.) embryos subjected to different drying temperatures. African Journal of Biotechnology, Nigeria, v. 11, n. 46, p. 10605-10610, June 2012.