| Full text | |
| Author(s): |
Total Authors: 2
|
| Affiliation: | [1] Universidade Estadual Paulista. Instituto de Biociências
[2] Instituto de Botânica - Brasil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Rev. bras. Bot.; v. 31, n. 2, p. 345-356, 2008-06-00. |
| Abstract | |
Recalcitrant seeds are intolerant to both desiccation and low temperatures, the most important mechanisms of seed conservation, consequently their storage is difficult. Inga vera subsp. affinis produces the so-called recalcitrant seeds, since they do not survive to water content lower than 35%. In this work it is demonstrated that these seeds are tolerant to temperatures as low as -2 ºC. Embryos of I. vera of different stages of maturity were stored at temperatures varying from 8 to -18 ºC for until 45 days. Non-dried embryos and both dried to -4 MPa and -6 MPa were stored. Results showed that, despite all embryos died at -18 ºC, some cold tolerance was obtained by mature embryos when stored at -2 ºC, as long as they are dried to -4 MPa. (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 Opportunities: | Research Projects - Thematic Grants |