Data/hora: 16/06/2024 08:27:15

Biblioteca(s): | Epagri-Sede.
Data corrente: | 05/05/2015
Data da última atualização: | 05/05/2015
Autoria: | GALVÃO, A. G.; RESENDE, L. V.; GUIMARAES, R. M.; FERRAZ, A. K. L.; MORALES, R. G. F.; MARODIN, J. C.; CATÃO, H. C. R. M.
Título: | Overcoming strawberry achene dormancy for improved seedling production in breeding programs.
Ano de publicação: | 2014
Fonte/Imprenta: | IDESIA, Chile, v. 32, n. 4, p. 57-62, 2014.
Idioma: | Inglês

Conteúdo:

Strawberry achenes present tegument dormancy. This fact, together with the low efficiency of artificial pollination requires a larger
number of crossings to ensure the minimum number of achenes used in seedling production in breeding programs. The aim of
this study was to test chemical solutions to overcome dormancy in strawberry achenes in order to increase the germination and
Germination Speed Index (GSI). The study consisted of two experiments. 1) immersion in H2SO4 (98%), HCl (37%) and NaClO
(2%) for 0 (control), 10, 20, 35 and 50 min were evaluated. 2) achenes were immersed in H2SO4 (98%) for 0 (control), 20, 25, 30,
35 and 40 min. A completely randomized design with four replications was used. Germination and GSI were assessed daily for 15
days. Scarification with H2SO4 (98%) for 40 min increased strawberry achene germination to 80% and can be used as a technique
to overcome dormancy. Scarification with HCl and NaClO increases germination and the GSI, however, other concentrations and
immersion times of those methods should be studied.

Palavras-Chave: | acid scarification; Fragaria x ananassa Duch; strawberry breeding; tegumentary dormancy.
Categoria do assunto: | G Melhoramento Genético
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_36248.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (98811-1) - UPC - AP - DD -  -  -  - DIS