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

Germination of Eugenia brasiliensis, E. involucrata, E. pyriformis, and E. uniflora (Myrtaceae) under water-deficit conditions

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Author(s):
Mariane Cristina Inocente [1] ; Claudio José Barbedo [2]
Total Authors: 2
Affiliation:
[1] Instituto de Botânica. Núcleo de Pesquisa em Sementes - Brasil
[2] Instituto de Botânica. Núcleo de Pesquisa em Sementes - Brasil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF SEED SCIENCE; v. 41, n. 1, p. 76-85, 2019-01-00.
Abstract

Abstract: This work aims at evaluating the tolerance of seeds of Eugenia brasiliensis Lam., E. involucrata DC., E. pyriformis Camb., and E. uniflora L. (Myrtaceae) to water deficit. Germination was carried out in polyethylene glycol 6000 solutions, at different osmotic potentials (0.0, -0.5, -1.0, -1.5, -2.0, -3.0, -4.0, and -5.0 MPa). The seeds were also placed in trays containing sand as substrate, and the water was replenished at different times, for up to 34 days. Seeds were evaluated as for their ability to undergoing a deficit period, and of germinating when water was made available again. In general, Eugenia spp. seeds were able to germinate at up to -1.5 MPa. In water potentials lower than 0.0 MPa, the beginning of germination experienced a delay, and it became better distributed throughout time. In the trays, the water restriction for up to 16 days did not limit normal seedling development. Seeds of Eugenia spp. were considerably tolerant to water deficit, as for both intensity and duration, which guarantees the development of seedlings and the propagation of the species. (AU)

FAPESP's process: 17/50341-0 - Challenges for biodiversity conservation facing climate changes, pollution, land use and occupation (PDIp)
Grantee:Luiz Mauro Barbosa
Support Opportunities: Research Grants - State Research Institutes Modernization Program