200
10 Appendices
Appendix 11: Assumed distribution of ex situ conserved PGRF A according to storage type
Storage type
Seed genebanks
Field genebanks
In vitro
Unknown storage facilities
Total:
Number of accessions
3,610,428
526,300
37,600
1,380,177
5,554,505
Distribution
[%]
65%
9%
1%
25%
100%
Source:
calculated according to information from FAD, 1996a, WIEWS, 1996
The stomge facilities are unknown for 25% of all conserved accessions, but it
may be assumed that:
• 90% of these accessions are stored in seed genebanks;
• 8% of these accessions are stored in field genebanks; and
• 2% of these accessions are stored in in vitro storage facilities.
Consequently, the overall distribution of accessions is listed according to storage
type:
Storage Type
Seed genebank
Field genebank
In vitro
Cryopreservation
Known storage
distribution
[%]
65.0%
9.0%
1.0%
0.2%
Assumed distribution of
unknown storage
facilities
[%]
22.5%
2.0%
0.5%
Assumed overall distribution
of ex situ conserved
accessions according to
storage type
[%]
88.0%
11.0%
1.0%
0.2%