Czech Journal of Genetics and Plant Breeding, 2004 (vol. 40), issue 4
Index of volume 40Index
editors
Czech J. Genet. Plant Breed., 2004, 40(4):91-101 | DOI: 10.17221/6095-CJGPB 
Detection of Leaf Blotches - Causal Agents in Barley Leaves and Grains
J. Gubiš, M. Hudcovicová, L. Klčová, V. Červená, K. Bojnanská, J. Kraic
Czech J. Genet. Plant Breed., 2004, 40(4):111-117 | DOI: 10.17221/3708-CJGPB
The objective of this paper was to adapt PCR-based detection method for R. secalis and P. teres DNA isolated from pathogens and also from artificially infected juvenile leaves and seeds using pathogen-specific primers. It has been proven that primers specific to P. teres and R. secalis can reliably diagnose pathogen DNA as well as its presence in the mixture with barley DNA. Two primers set for detection of R. secalis were compared. The intensity of the corresponding DNA band after amplification with primer pair RS1-RS3 was higher than that amplified with RS8-RS9. The primer set RS1-RS3 was also used to...
Genetic Diversity of Genetic Resources of Winter Barley Maintained in the Genebank in Slovakia
M. Žáková, M. Benková
Czech J. Genet. Plant Breed., 2004, 40(4):118-126 | DOI: 10.17221/3709-CJGPB
A set of 140 winter barley genetic resources of foreign and domestic origins was tested on experimental basis of RIPP in 1997-1999 to characterise the variability of the accessions based on agronomic data using multivariate methods. In the set tested, variability was studied of selected traits and characteristics such as: plant height (PH), weight of 1000 grains (W), grain number per a spike (SNG), grain uniformity - ratio of front seeds over 2.5 m sieve (GU), vegetation period - sowing/full maturity (VM) and seed yield (Y). Agronomic characters show great variability between cultivars. The study of matrix interrelationships between different variables...
Agronomic Performance of Doubled Haploid Lines and Pedigree-Derived Lines of Winter Oilseed Rape
V. Kučera, E. Schwarzbach, M. Klíma, M. Vyvadilová
Czech J. Genet. Plant Breed., 2004, 40(4):127-133 | DOI: 10.17221/3710-CJGPB
In four not overlapping sets of cultivars, including doubled haploid (DH) lines and pedigree derived (PD) lines of winter oilseed rape, both types of lines were compared in basic agronomic traits. The tested lines originated from breeding programmes of different breeders. Each set of cultivars was tested in a different year from 2001 to 2004 in multi-location trials with four replicates. There was no consistency in yield superiority of DH or PD lines and in all four sets the differences between the means of DH and PD groups were insignificant. On average, the differences between the groups of DH and PD lines were negligible in all evaluated agronomic...
Characterisation of Genetic Diversity in ICARDA Core Collection of Cultivated Barley (Hordeum vulgare L.)
K. Chabane, J. Valkoun
Czech J. Genet. Plant Breed., 2004, 40(4):134-136 | DOI: 10.17221/3711-CJGPB
Out of the total accessions of cultivated barley, held at ICARDA, a subset core collection consisting of 153 accessions originating from different countries was established. Genetic diversity of the core collection was studied using AFLP markers. The accessions were grouped into different geographic sub-regions and the total genetic variation was estimated using Popgene software. Genetic distance matrix was computed and hierarchical unrooted tree was performed using Phylip software package. Our results demonstrate that the AFLP markers were highly informative and were useful in generating a meaningful classification of the cultivated barley that we...
Barley Varieties Suitable for Production of the Czech-type Beer
K. Kosař, V. Psota, A. Mikyška
Czech J. Genet. Plant Breed., 2004, 40(4):137-139 | DOI: 10.17221/3712-CJGPB
In the course of the 20th century, the production of beer was substantially changed. Economic pressures led to the concentration, modernisation and automation of the beer and malt production. These changes were reflected in a new view of malting barley varieties' quality. In two last decades, the varieties possessing a strong enzymatic activity, high extract contents and high final attenuation have been promoted. Due to historical reasons, the traditional production of pale lager has been preserved in the Czech brewing. For the production of the Czech-type beer, those varieties of malting spring barley are suitable that enable the production...
Breeding Malting Barley under Stress Conditions in South America
S.E. Germán
Czech J. Genet. Plant Breed., 2004, 40(4):140-147 | DOI: 10.17221/3713-CJGPB
The annual average area sown with barley (Hordeum vulgare) in South America during 1999-2003 was 795 000 ha. In Argentina, Brazil, Chile and Uruguay, two-rowed spring cultivars are used mostly for malt production. Research has been developed in private malting companies and official institutions supported by the industry. In Argentina, tolerance to drought and heat stress during grain filling are important in drier areas. Yield and malt extract had been improved in cultivars released from 1940 to 1998. In Brazil, progress in grain yield, grain size, malting quality, early maturity, and resistance to net blotch, powdery mildew, and leaf rust...
9th International Barley Genetics Symposium 20-26 June, 2004, Brno, Czech Republic
J. Špunar
Czech J. Genet. Plant Breed., 2004, 40(4):148 | DOI: 10.17221/6093-CJGPB
Ing. Josef Pešek, DrSc., seventieth birthday anniversary
J. Hartmann
Czech J. Genet. Plant Breed., 2004, 40(4):149 | DOI: 10.17221/6094-CJGPB