Data/hora: 10/06/2024 09:06:54

Provedor de dados: | 63
País: | Brazil
Título: | Approaches to the indirect evaluation of germination and vigour
Autores: | Matthews,S.
Data: | 1998-01-01
Ano: | 1998
Palavras-chave: | Cauliflower; Controlled deterioration; Leakage; Electrical conductivity; Storage.
Resumo: | In comparisons of six seed lots of different F1 hybrid cultivars of cauliflower with similarly high laboratory germinations (above 90%) separation in germination was achieved after controlled deterioration (C.D.) at 24% moisture content (m.c.) and 45 0C for 24 hours. This measure of vigour was related to the position of the lots on the seed survival curve and was highly predictive of the longevity of the lots when stored at 15% m.c. and 20 0C for 12 and 16 weeks. When each seed lot was deteriorated at 24% m.c. for increasing times (from 0 to 36 hours) a reduction in the subsequent percentage germination was seen, which, using probit transformed percentages, was significantly and linearly related to the leakage of electrolytes into seed soak water over 24 hours. The case is made for an approach to the indirect evaluation of germination and vigour using C.D. followed by measurements of leakage that could be more discerning and rapid than the present laboratory germination test.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161998000500011
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90161998000500011
Formato: | text/html
Fonte: | Scientia Agricola  v.55 n.spe 1998
Fonte: | info:eu-repo/semantics/openAccess