Filters

Storage in seed banks for forage grass genetic resources

Contributors to this page: ILRI, Addis Ababa, Ethiopia (Jean Hanson); Bioversity International/ILRI, Addis Ababa, Ethiopia (Alexandra Jorge).

Contents:
Base collection
Active collection
Storage management

Base collection

When it should be used

Sample specifications

Minimum sample size/viability for storage:

Moisture content

Container specifications

Seed packaging method

Specifications of packaging material

Minimum quality: outer polyester of 12 µm thickness, middle aluminium layer of 9 µm thickness and inner polythene layer of 55 µm (this thickness is impermeable, sufficiently flexible for handling and strong enough for forage grass seeds, which are usually smooth).

Storage specifications

The two commonly available options for seed storage are walk-in cold stores and freezers. The choice depends on the number of accessions to be stored, seed size and storage temperatures selected.

Assigning location codes

Storage conditions

Back to top


Active collection

When it should be used

To store seeds for distribution and use (seed quantities for distribution are usually larger and are not usually stored for long periods, therefore storage conditions are less stringent).

Sample specifications

Minimum sample size/viability for storage:

Moisture content:

Container specifications

Seed packaging method

or

Specifications of packaging material

Storage specifications

Assigning location codes

Storage conditions:

For information on safety duplication, click here.

Back to top


Storage management

Storage space arrangement

System for tracking material/inventory system

Recording information during conservation

The following information must be recorded for each accession:

Back to top


References and further reading

Chin HF, Hanson J. 1999. Seed storage. In: Loch DS, Ferguson J, editors. Forage Seed Production Vol. II Tropical and Subtropical Species. CABI, Wallingford, UK. pp. 303-315.

FAO/IPGRI. 1994. Genebank standards. Food and Agriculture Organization of the United Nations, Rome and International Plant Genetic Resources Institute, Rome. Available in English, Spanish, French and Arabic.

Harty RL, Hopkinson JM, English BH, Alder J. 1983. Germination, dormancy and longevity in stored seeds of Panicum maximum. Seed Science and Technology 11:341-351.

Whiteman PC, Mendra K. 1982. Effects of storage and seed treatments on germination of Brachiaria decumbens. Seed Science and Technology 10:233-242.

The Genebanks

The 11 CGIAR genebanks currently conserve 730,000 of cereals and grain legumes, forage crops, tree species, root and tuber crops, bananas and crop wild relatives.

close-icon