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15<br />

of all available generatively propagated accessions<br />

which are documented in the network of institutions<br />

active within the Czech National Programme. Accessions<br />

are stored in 63,574 glass containers, another<br />

1,084 working collection samples and further 2,644<br />

safety duplication samples belonging to Research<br />

Institute of Plant Production in Pie‰Èany are kept in the<br />

gene bank storage. Altogether 77% of the total storage<br />

capacity in conditioned rooms is utilized.<br />

Samples are distributed to users according to their<br />

requests. In 2<strong>00</strong>6 in total 2,485 seed samples were delivered<br />

to 103 users.About 65% samples were addressed<br />

to domestic and 35% to foreign users.<br />

Documentation System<br />

The documentation system EVIGEZ has been further<br />

developed and frequently updated. The latest database<br />

consists of 49,<strong>06</strong>9 passport records representing all<br />

available accessions in Czech crop collections. About<br />

61.2% of these accessions are complemented by sets of<br />

characterization/evaluation data. Gene bank storage is<br />

fully documented in the system as well.<br />

The updated crop catalogue EVIGEZ containing<br />

passport data is on-line available to users on the URL:<br />

http://genbank.vurv.cz/genetic/resources/.<br />

Evaluation of wheat, winter barley, triticale, buckwheat<br />

and millet<br />

As agreed in the framework of the National Programme,<br />

the Department of Gene Bank of RICP is<br />

responsible for the evaluation of wheat, triticale, winter<br />

barley, wild relatives of crops of the tribe Triticeae, buckwheat,<br />

millet, Amaranthus, quinoa and further genetic<br />

resources of minor crops.<br />

In 2<strong>00</strong>6 the overwintering of winter wheat was at<br />

a very good level similarly like in the case of winter<br />

barley.The lodging of the two crops was also negligible<br />

in the last vegetation period. Owing to hot and dry<br />

weather during the grain filling period (July), wheat<br />

accessions originating from continental conditions<br />

were advantaged. High combined resistance to leaf,<br />

stem and stripe rusts were detected in cultivar ‘Bonito-<br />

27’ and advanced line ‘RU2-04’. Weather conditions<br />

during vegetation were suitable also for the winter<br />

barley check cultivar ‘Luran’. Among winter triticale<br />

accessions, the cultivar ‘SW Talentro’ was highly productive<br />

during the last two years of evaluation.<br />

The evaluation of wild relatives of crops of the tribe<br />

Triticeae indicated that Triticum boeoticum, T. araraticum,<br />

Aegilops geniculata and Ae. markgrafii had a good level of<br />

resistance to powdery mildew, stem and stripe rusts.<br />

Within a group of minor crops we evaluated<br />

134 genotypes of buckwheat, 22 accessions of millet,<br />

14 samples of Amaranthus and 5 foxtail millets.<br />

(Dotlaãil L., Stehno Z., Faberová I., Holubec V.,<br />

Dvofiáãek V., Janovská D., Pelichová E.)<br />

Study and utilisation of biodiversity, genetic<br />

mechanisms and new methods aimed at<br />

improvement of the biological potential<br />

of cultivars and sustainable development<br />

of agriculture (MZe âR <strong>00</strong>027<strong>00</strong>602)<br />

Phase 1: Study of genetic diversity in crops and<br />

its utilisation for sustainable development of<br />

agriculture; selection of donors of economically<br />

important characters to use them in research,<br />

breeding and practice<br />

Evaluation of prospective winter wheat genetic resources<br />

Prospective accessions of winter wheat genetic<br />

resources were evaluated for two years. The influence<br />

of growing conditions in the years of testing on overwintering<br />

was not strong (6.2%). On the other hand,<br />

the earliness (period to heading, flowering and waxy<br />

ripeness) was influenced markedly by different growing<br />

conditions (28.4, 65.2 and 30.4, respectively). The<br />

influence of the year on grain weight (TKW) was<br />

negligible (3.5%) similarly like on responses of wheat<br />

accessions to powdery mildew infection.<br />

Among grain quality parameters, crude protein<br />

content was highly influenced by growing conditions<br />

(24.4%) in comparison with the other quality<br />

characters with percentage not higher than 5.5%.<br />

Evaluation of winter barley cultivars<br />

Damage of barley accessions during the winter period<br />

was more serious than that of wheat. Some accessions<br />

Evaluation of wheat genetic resources

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