| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Inst Bot, Programa Posgrad Biodiversidade Vegetal & Meio Am, BR-04301012 Sao Paulo - Brazil
[2] Inst Bot, Nucleo Pesquisa Sementes, BR-04301012 Sao Paulo - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Brazilian Archives of Biology and Technology; v. 55, n. 4, p. 583-590, JUL-AUG 2012. |
| Web of Science Citations: | 7 |
| Abstract | |
The aim of the present work was to study the water potential and viability of Eugenia based upon different levels of drying. The seeds showed high water content at shedding and were sensitive to desiccation; however, the level of this sensitivity (water content) varied among the species. Five target drying levels were defined according to the critical levels of hydration. Results showed that water potential seemed to be more reliable than water content. It was hypothesize that the differences in desiccation tolerance, as well as recalcitrance, among the seeds of different species could be related to the maturity level of these seeds during shedding from the mother plant. Consequently, this could be a result of the evolution on how far the maturation process could represent an advantage for the species propagation. This could also mean that Eugenia seeds were dispersed at a maturity stage similar to that observed in immature orthodox seeds. (AU) | |
| FAPESP's process: | 05/04139-7 - Carbohydrates of tropical species as modulators of ecophysiological processes and as environmental stress response markers |
| Grantee: | Marcia Regina Braga |
| Support type: | Research Projects - Thematic Grants |
| 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 type: | BIOTA-FAPESP Program - Thematic Grants |