Advanced search
Start date
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Germination of seeds of Erythrina speciosa Andr., Eugenia brasiliensis Lam. and Cucumis sativus L. on acid substrate

Full text
Cristina Rita Radics Koszo [1] ; Mirian Cilene Spasiani Rinaldi [2] ; Claudio José Barbedo [3]
Total Authors: 3
[1] Instituto de Botânica - Brasil
[2] Instituto de Botânica - Brasil
[3] Instituto de Botânica - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Hoehnea; v. 34, n. 3, p. 271-282, 2007-00-00.

Many studies have described seed germination as an extremally vulnerable growth phase and seed germinability in response to acidity may subsides the knowledge about the differences in floristic composition. Seeds of two native species from Brazil, Erythrina speciosa Andr. and Eugenia brasiliensis Lam., and a cultivated species (Cucumis sativus L.) were evaluated in relation to their sensibility to acidity and to different aluminium concentration, variable indirect related with the pH of the soil. Seeds of E. speciosa and C. sativus did not loose germinability even in pH 1.0. Aluminium affectted the germinability of the three species, resulting in total inhibition of germination in pH 1.0 and 2.0. E. brasiliensis showed the greatest sensitivity to environmental chemical conditions. Results showed that the effects of acidity on germination probably affect the phase of the germination process between imbibition and radicle protrusion. (AU)

FAPESP's process: 02/12215-7 - Aromatic flora from the Atlantic rain forest in São Paulo: chemical composition on volatile oils and evaluation of their biological activity
Grantee:Paulo Roberto Hrihorowitsch Moreno
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants