Czech Journal of Genetics and Plant Breeding, 2007 (vol. 43), issue 2
The effect of friabilin on wheat grain hardness: a review
Daniela Mikulíková
Czech J. Genet. Plant Breed., 2007, 43(2):35-43 | DOI: 10.17221/1911-CJGPB 
A wheat marketing system established the primary classification of hexaploid wheat based on the endosperm texture, i.e. hardness or softness of the grain. Hardness affects a range of characters including the milling (tempering, milling yield, flour particle size, shape and density of flour particles), baking and end-use properties. Wheat grain hardness is largely controlled by genetic factors but it can also be affected by the environmental and other factors. The endosperm texture is primarily associated with the Hardness (Ha) locus on the short arm of chromosome 5D. It is regulated by friabilin. This 15 kDa starch surface protein complex...
Resistance of winter wheat varieties registered in the Czech Republic to mycotoxin accumulation in grain following inoculation with Fusarium culmorum
Jana Chrpová, Václav Šíp, Eva Matějová, Světlana Sýkorová
Czech J. Genet. Plant Breed., 2007, 43(2):44-52 | DOI: 10.17221/1910-CJGPB
Resistance of 35 winter wheat varieties to the accumulation of mycotoxins deoxynivalenol (DON) and zearalenone (ZEA) in grain was evaluated in field trials lasting three years (2004, 2005, 2006) after artificial inoculation with Fusarium culmorum. Data on DON and ZEA content were supplemented by symptom scores and determination of % of Fusarium damaged grains and % reductions of thousand grain weight and grain weight per spike due to infection. The conditions of experimental years highly influenced the performance of all characters. The highest production of DON occurred in 2006 at a high temperature and high moisture content during the infection...
Rust resistance of the French wheat cultivar Renan
Alena Hanzalová, Veronika Dumalasová, Táťána Sumíková, Pavel Bartoš
Czech J. Genet. Plant Breed., 2007, 43(2):53-60 | DOI: 10.17221/1912-CJGPB
Our field experiments confirmed the leaf rust resistance of cv. Renan in the Czech Republic. Whereas the leaf rust resistance gene Lr37 possessed by Renan is generally effective as late as at the adult plant stage, we found one leaf rust isolate that caused resistant to moderately resistant reactions on NIL Lr37 as well as on the cv. Renan already at the seedling stage. This isolate was used in the study of genetics of the leaf rust resistance of cv. Renan in greenhouse experiments. The presence of translocation from Aegilops ventricosa carrying the cluster of rust resistance genes Lr37, Sr38 and Yr17...
Faba bean (Vicia faba L.) breeding for resistance to anthracnose (Ascochyta fabae Speg.) in the Czech Republic
Michal Ondřej, Igor Huňady
Czech J. Genet. Plant Breed., 2007, 43(2):61-68 | DOI: 10.17221/1909-CJGPB
In 2003-2005 faba bean accessions were evaluated in laboratory and field inoculation tests with a mixture of differently virulent isolates for susceptibility to anthracnose caused by the fungus Ascochyta fabae Speg. All tested commercial faba bean cultivars, both colour and white flowering, were found to be susceptible or highly susceptible. The highest level of resistance was found only in declared sources of resistance: 29H, L-8 and Petra. Segregation of F2 plants derived from the cross of cultivar Merlin (susceptible, white flowering) with line Petra (resistant, colour flowering) was observed. The plants were moderately susceptible...
Winter oilseed rape Opus
R. Koprna
Czech J. Genet. Plant Breed., 2007, 43(2):69-70 | DOI: 10.17221/1908-CJGPB
Winter oilseed rape Oksana
R. Koprna
Czech J. Genet. Plant Breed., 2007, 43(2):71-72 | DOI: 10.17221/1907-CJGPB