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handle: 10261/163616
[ES] Desde 1985 se conservan en el banco de gennoplasma de la Misión Biológica de Galicia semillas pertenecientes al género Brassica a 4°C de temperatura y 60% de humedad relativa. El objetivo de este trabajo consistió en estudiar la germinación de las mismas después de 10- 13 años de conservación. La viabilidad de las semillas se determinó con una prueba de germinación estándar y se consideraron capaces de producir plántulas normales cuando se observaron las raíces y cotiledones. La mayoría de las semillas resultaron viables y presentaron porcentajes de germinación aceptables después de 10-13 años de almacenamiento. Solamente un bajo número de accesiones comienzan a deteriorase después de este periodo y no germinan. Las semillas del género Brassica han sido bien conservadas en estas condiciones y podrían utilizarse en programas de mejora.
[EN] A collection of Brassica seeds are maintained in a seedbank at the Misión Biológica de Galicia at 4°C temperature and 60% of moisture content since 1985. The objective of this work was to study the seed germination after 10-13 years of conservation. Seed viability was determined by a standard germination test. Seeds were considered capable of producing normal seedlings if the cotyledons and radicle were visible. After 10- 13 years of storage, most seeds were still viable and showed, in general, acceptable germination percentages. Only a low number of accessions began to deteriorate after this storage period and did not germinate. The results obtained support that Brassica seeds have been preserved in good conditions for medium-term maintenance and these varieties can be used in breeding programs.
Trabajo presentado en las XI Jornadas de selección y mejora de plantas hortícolas, celebradas en Córdoba (España), entre el 21 y el 23 de octubre de 1998.- 6 páginas y 1 tabla.
Peer reviewed
Banco de germoplasma, Seedbank, Viabilidad de las semillas, Brassicas, Seed viability
Banco de germoplasma, Seedbank, Viabilidad de las semillas, Brassicas, Seed viability
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