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EUROPEAN CENTRAL FORAGES DATABASES 35
Table 2. Number of accessions per species
Poa species No. of accessions Poa species No. of accessions
alpina L. 9 fibrifera 1
altaica Trin. 1 iberica 1
ampla Merr. 2 lanuginosa 1
angustifolia L. 9 ligularis 6
annua L. 4 nemoralis L. 35
arctica R. Br. 1 palustris L. 22
asperiflora 1 pamirica 1
badensis Haenke 3 pannonica 1
binata Nees. 6 pratensis L. 2376
bulbosa L. 68 remota Forselles 5
caesia Smith 2 Poa sp. 26
caespitosa Spreng. 2 subcaerulea 1
chaixii Vill. 6 supina Schrad. 1
compressa L. 22 trivialis L. 23
Table 3. Poa Database: overview of accessions by status of sample (H. Knüpffer and E.
Willner)
Advanced Primitive Semi-natural
cultivars, bree- cultivars, (ecotypes) or wild Unknown, other
Genebank der's lines (5, 4) landraces (3) material (1, 2) (empty, 6, 7)
BELCLOGRVP 2 27
CHERAC 60
CZEZUBRI 155 61 3
DEUBGRC 59 1 11 64
DEUGAT 8 36
DEUIPKM 220 9 258
GBRIGER 57 1 33 12
GBRRBGK 35
HUNRCA 30 22
POLIHAR 61 1297 94
ROMSUCEAVA 7
TURARARI 7 6
Total 562 1326 245 503
Total for all accessions: 2636
Ten species are represented by only one accession each. Twenty-six accessions that came
without a species designation are designed as 'Poa sp.' For an overview of the species and
their frequencies in the database, see Table 2.
The accessions in the database are reported to originate from 42 different countries. More
than 50% of the accessions (1409 accessions) originate from Poland, followed by 210 from
former GDR, 115 from the Netherlands and 104 from Germany. Eleven countries are
represented by one accession each. Only 172 accessions came without information about
country of origin.
Table 3 gives a survey about the status of the samples (according to FAO/IPGRI
Multicrop Passport Descriptors).
The 'Guide' of 1991 distinguishes three parts in forage crop databases: (1) Advanced
cultivars and breeders' lines, (2) Primitive cultivars and landraces, and (3) Semi-natural
(ecotypes) or wild material. The numbers given in Table 3 are the descriptor numbers
according to the 'Guide'. The descriptors for these parts of the databases are mainly
overlapping. Therefore, it was decided to compile only one single Poa database, from which
the sub-databases can be created if necessary. Since not all contributors provided
information about the status of samples, there would have been a certain part of the database
which could not be classified in any of these three parts.