Rapid loss of seed viability in ex situ conserved wheat and barley at 4°C as compared to -20°C storage.

ABSTRACT: Genebanks aim to optimize their storage conditions in order to postpone seed ageing as long as possible. As most genebanks have a relatively short life history, empirical data about seed longevity during ex situ storage are almost absent. Based on seed characteristics, theoretical predictions indicate that cereal seeds can be stored without substantial loss of viability for time periods exceeding 100 years, even under temperatures of a few degrees above zero. Here we present the results of a germination study in wheat and barley, comparing genebank seed samples maintained at different temperatures for 23-33 years. Wheat and barley seed samples stored at -20°C showed a mean germination of 94% and 90%, respectively, indicating no loss of the initial viability determined for the access

SUBMITTER: van Treuren R 

PROVIDER: S-EPMC6016650 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature