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Šumperk, Czech Republic

Rubiales D.,CSIC - Institute for Sustainable Agriculture | Avila C.M.,IFAPA Centro Alameda del Obispo | Sillero J.C.,IFAPA Centro Alameda del Obispo | Hybl M.,AGRITEC Ltd. | And 3 more authors.
Field Crops Research | Year: 2012

Ascochyta blight incited by Ascochyta fabae is a widespread disease severely damaging faba bean (Vicia faba) production. Insufficient resistance is available in faba bean cultivars. In an attempt to identify new sources of resistance a germplasm collection of 484 V. faba accessions was screened for resistance to A. fabae under field conditions; stability of resistance of the 19 most resistant accessions was tested in a multi-location experiment in Czech Republic, Estonia, Germany and Spain over two field seasons. Although complete resistance was not found, six accessions showed interesting levels of incomplete resistance. Genotype. ×. environment (G. ×. E) interaction accounted for 42% of the sum of squares of the multi-environment evaluation, revealing instability of the phenotypic expression across environments. Accessions L-831818, V-26 and V-958 stand out for their consistent resistance, being the most resistant and stable across environments. Accessions V-255, V-1020, V-1085 and V-1117 displayed good resistance, but lower stability, with V-1020, V-1085 and V-1117 being more suitable for Córdoba (Mediterranean mega-environment), and V-255 more suitable for Hohenlieth, Jõgeva and Sumperk (Continental mega-environment). © 2011 Elsevier B.V. Source

Soudek P.,Czech Republic Crop Research Institute | Katrusakova A.,Czech Republic Crop Research Institute | Katrusakova A.,Institute of Chemical Technology Prague | Sedlacek L.,Czech Republic Crop Research Institute | And 6 more authors.
Archives of Environmental Contamination and Toxicology | Year: 2010

The effect of toxic metals on seed germination was studied in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of cadmium, cobalt, copper, zinc, nickel, lead, chromium, and arsenic at five different concentrations (0.01-1 mM) was tested by standard ecotoxicity test. Root length was measured after 72 h of incubation. Elongation inhibition, EC50 value, slope, and NOEC values were calculated. Results were evaluated by principal component analysis, a multidimensional statistical method. The results showed that heavy-metal toxicity decreased in the following order: As3+ ≥ As5+ > Cu2+ > Cd2+ > Co2+ > Cr 6+ > Ni2+ > Pb2+ > Cr3+ > Zn2+. © 2010 Springer Science+Business Media, LLC. Source

Flores F.,University of Huelva | Hybl M.,AGRITEC Ltd. | Knudsen J.C.,Toft Plant Breeding | Marget P.,French National Institute for Agricultural Research | And 11 more authors.
Field Crops Research | Year: 2013

Faba bean (Vicia faba L.) is a cool season grain legume whose acreage has constantly declined in traditional producer countries as it has been replaced by more productive cereal crops. However, faba bean is still considered to have great potential as rainfed crop. In order to satisfy the renewed interest in faba bean cultivation yield stability should be improved by exploiting different germplasm types and sowing seasons.In order to understand of genotype by environment interactions and to compare cultivar performance over years and locations a spring faba bean network was established with 20 cultivars grown over three crop seasons at 13 contrasting locations covering most of Europe. Analysis was performed by heritability-adjusted genotype plus genotype × environment interaction (HA-GGE) biplot analysis. HA-GGE biplot analyses identified that the effect of genotype by environment interaction was higher than the effect of genotypes, allowing identification of three mega-environments, namely Continental, Oceanic, and Mediterranean, in which cultivar performed differently. This supports the need for specific breeding for each specific geoclimatic area. Espresso was the highest yielding cultivar, being also highly stable over the Oceanic and Continental mega-environments. Cultivars Fuego, Hobbit and SR-1060 had also good yield but with a moderate unstability in both Oceanic and Continental mega-environments. Baraca and Alameda yielded poorly at all environments although were the best yielders at Mediterranean locations. Environments as Sumperk and Premesques were identified as the best core test locations for Continental and Oceanic mega-environments, respectively, being the locations in which best genotypes could be most easily identified. © 2013 Elsevier B.V. Source

Agritec Inc. | Date: 1977-11-08


AgriTec Inc. | Date: 2003-04-15

Silica, silica gel and mixtures of siliceous materials for custom manufacturing of semiconductor, rubber, plastic and elastomeric products.

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