Fabian two-row winter barley

Fabian is a medium-late two-row feedin barley of winter habit developed at Agrotest Fyto, Ltd., Kroměříž, Czech Republic (breeders’ rights holder) and registered in the Czech Republic in 2011. In the Official Variety Trials it showed high grain yields under intensive growing conditions (104.5%) and medium yields under low input conditions (101.1%). Fabian has the highest cold hardiness of the registered two-row winter barleys and regenerates very well in the spring. Its resistance to powdery mildew is very high (score 8.2 on a 1–9 scale). It has medium plant height, moderate resistance to lodging and large yellow kernel. The spike is long and of medium density.

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Evaluation of gooseberry cultivars resistance to the American gooseberry powdery mildew Sphaerotheca mors uvae Schwein and its chemical control

Plant Protection Science ◽

10.17221/10561-pps ◽

2017 ◽

Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽

pp. 583-587

Author(s):

M. Vaverka ◽

S. Vaverka

Keyword(s):

Biological Activity ◽

Czech Republic ◽

Powdery Mildew ◽

Chemical Control ◽

Biological Effect ◽

Field Trials ◽

The Czech Republic ◽

Biological Efficacy ◽

Extensive Field ◽

Susceptibility Evaluation

In the course of 1993–2001 extensive field trials were carried out to evaluate the resistance (susceptibility) level of 34 gooseberry cultivars to the American gooseberry powdery mildew Sphaerotheca mors uvae Schwein. Cultivars originated from the Czech Republic and from other European countries. Each tested cultivar had 7 trees (5–10 years old). Beside the resistance (susceptibility) evaluation, biological efficacy of 9 fungicides using EPPO methods has been checked at the same number of cultivars and at the same number of gooseberry trees. Highly significant differences of resistance or susceptibility were observed among gooseberry varieties. Analogical results (differences in biological activity of fungicides) have been attained in the course of chemical treatment. 18 cultivars has been classified as low resistant, 12 cultivars as moderate resistant and 4 cultivars as high resistant. None of the tested fungicides proved perfect biological efficacy (100% healthy berries). 4 of them proved high biological effect (more than 90% healthy berries), 3 proved low biological activity (less than 75% healthy berries) and 2 proved moderate biological activity (75–90% healthy berries).

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The competitiveness of Czech agrarian trade within the context of the global crisis

Agricultural Economics (Zemědělská ekonomika) ◽

10.17221/103/2012-agricecon ◽

2013 ◽

Vol 59 (No. 4) ◽

pp. 183-193 ◽

Cited By ~ 1

Author(s):

L. Smutka ◽

J. Burianová

Keyword(s):

Czech Republic ◽

World Trade ◽

World Economy ◽

Agricultural Trade ◽

High Rate ◽

The Czech Republic ◽

The World ◽

Territorial Structure ◽

Merchandise Trade ◽

Very High

World trade underwent a significant shock within the recent years, which caused a decline in the world economy primarily in the year 2009. Within the following years (2010 and 2011), the high rate of growth from the years preceding the crisis could not be restored. The crisis had an impact on all segments of the merchandise trade, whereby the trade in agricultural and food products was affected the least by the crisis. In the case of the Czech Republic, the crisis of the global and national economy was reflected in the case of agricultural trade primarily by the way of a decline in the rate of the growth of export, which was very high in the period prior to the crisis. As far as the territorial structure and commodity structure of agricultural trade is concerned, their development in the years 2008–2011 was not affected in any largely significant manner. In relation to the main objective of this article, which was to identify the effects of the crisis on the competitiveness of Czech agricultural trade, it may be stated that the crisis itself did not worsen the competitiveness of agricultural trade in any significant manner.  

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Long-lasting changes in the species spectrum of cucurbit powdery mildew in the Czech Republic – influence of air temperature changes or random effect?

Plant Protection Science ◽

10.17221/2807-pps ◽

2010 ◽

Vol 45 (Special Issue) ◽

pp. S41-S47 ◽

Cited By ~ 9

Author(s):

A. Lebeda ◽

B. Sedláková ◽

E. Křístková ◽

M. Vysoudil

Keyword(s):

Czech Republic ◽

Powdery Mildew ◽

Air Temperature ◽

Mixed Infection ◽

Random Effect ◽

Morphological Characteristics ◽

Infection Prevalence ◽

The Czech Republic ◽

Field Crops ◽

Influence Spreading

Two ectoparasite powdery mildew species Golovinomyces cichoracearum (Gc) and Podosphaera xanthii (Px) occurring on cucurbits differ, besides other characteristics, by specific ecologic requirements. While Px is common in subtropical and tropical areas and greenhouse crops, Gc occurs more frequently in temperate and cooler areas under field conditions. Their presence on cucurbit field crops (Cucurbita pepo, C. maxima, Cucumis sativus) was monitored in the Czechoslovakia (1979–1980) and in the Czech Republic (1995–2007). Their identification was carried out by microscopic observation of the morphological characteristics of the dry conidia on 1527 leaf samples. Data on air temperature in 1979–2007 were provided by the Czech Hydrometeorological Institute. In 1979–1980 Gc was identified in 86.0% of samples, Px in 14.0% samples, there was no mixed infection; prevalence of Px was recorded in South Slovakia and South Moravia, and on crops under cover. Since 1995 species Px was recorded each year on field crops in different locations of Bohemia and Moravia, usually in mixed infection with Gc. The average year temperature of 8.1°C for period 1992–2007 was higher than corresponding value of 7.4°C in 1979–1983. Similarly, average temperature in vegetation season of 16.2°C in 1992–2007 was higher than corresponding value of 15.7°C in 1979–1983. The higher air temperature can positively influence spreading of Px in the Czech Republic. Climate variability and effect of their changes are discussed in relationship to the geographic distribution and geographic patterns of cucurbit powdery mildews.

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First record of powdery mildew on Homalocladium platycladum in the Czech Republic

Plant Pathology ◽

10.1111/j.1365-3059.2007.01594.x ◽

2007 ◽

Vol 56 (4) ◽

pp. 722-722 ◽

Cited By ~ 2

Author(s):

A. Lebeda ◽

B. Mieslerová ◽

V. Rybka ◽

M. Sedlářová ◽

I. Petrželová

Keyword(s):

Czech Republic ◽

Powdery Mildew ◽

First Record ◽

The Czech Republic

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Severity of powdery mildew on winter barley in the Czech Republic in 1976–2005

Plant Protection Science ◽

10.17221/2247-pps ◽

2008 ◽

Vol 43 (No. 3) ◽

pp. 77-85 ◽

Cited By ~ 3

Author(s):

A. Dreiseitl

Keyword(s):

Czech Republic ◽

Powdery Mildew ◽

Disease Severity ◽

Field Trials ◽

Winter Barley ◽

Sources Of Resistance ◽

The Czech Republic ◽

High Infection ◽

High Disease Severity ◽

Important Disease

Results of scoring the reaction to powdery mildew of 240 winter barley varieties that were gradually included in 392 Czech Official Trials conducted at 21 locations were analysed. The reaction of the varieties was determined on the basis of the level of infection by the disease. Therefore, the data can also be used to assess the disease severity in years and at locations. Several characteristics indicative of disease severity were considered, including the disease severity coefficient (= average infection of susceptible varieties in trials with a high disease severity/the proportion of such trials). The value of the coefficient is inversely proportional to disease severity. The highest powdery mildew severity was found in 1976, and the years 1988, 1990 and 2003 were characterised by high infection of the examined varieties. In contrast, the disease was practically absent in 1979 and 1982, and its severity was also low in 1978, 1981, 1985, 1991 and 1998. Very low disease severity was found for the period 1977–1982 when insufficient disease severity was found on average in 78% of the trials and high disease severity in only 6% of the trials. The highest disease severity was found at locations Trutnov, Horažďovice and Chrastava. The analysis of data from a large number of field trials conducted at various locations for a period of 30 years confirmed that powdery mildew is an important disease of winter barley in the Czech Republic. Known genetic sources of resistance and current methods, such as marker assisted selection, enable breeders to solve this problem.

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Development of high baking quality winter wheat Annie

Czech Journal of Genetics and Plant Breeding ◽

10.17221/238/2014-cjgpb ◽

2014 ◽

Vol 50 (No. 4) ◽

pp. 293-295

Author(s):

P. Horčička ◽

O. Veškrna ◽

T. Sedláček ◽

J. Matyk ◽

J. Chrpová ◽

...

Keyword(s):

Czech Republic ◽

Winter Wheat ◽

Grain Quality ◽

Early Winter ◽

The Czech Republic ◽

Quality Class ◽

Baking Quality ◽

Breeding Station ◽

Check Variety ◽

Very High

Annie is a medium-early winter wheat developed at the Plant Breeding Station, Stupice, SELGEN, a.s., Czech Republic and registered in the Czech Republic in 2014. In the Official Variety Trials this variety showed very high baking quality class E combined with higher grain yield than in the check variety Akteur with similar grain quality. It carries Pch1 gene conferring resistance to eyespot and possesses combined resistance to most diseases together with excellent frost resistance.

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Virulence frequencies to powdery mildew resistance genes of winter barley cultivars

Plant Protection Science ◽

10.17221/466-pps ◽

2010 ◽

Vol 40 (No. 4) ◽

pp. 135-140 ◽

Cited By ~ 11

Author(s):

A. Dreiseitl

Keyword(s):

Czech Republic ◽

Powdery Mildew ◽

Resistance Genes ◽

Powdery Mildew Resistance ◽

Spring Barley ◽

Winter Barley ◽

The Czech Republic ◽

Mildew Resistance ◽

Barley Cultivars ◽

Random Samples

The virulence frequencies to powdery mildew resistance genes possessed by winter barley cultivars registered and newly tested in the Czech Republic were studied in 2000, 2002 and 2004. Random samples of the populations originating from winter and spring barley fields were obtained from the air by a mobile version of a jet spore sampler mounted on a car roof. Conidia were sampled by driving across the Czech Republic. Fourteen differentials, carrying 18 out of 20 currently identified resistance genes present in winter barley cultivars, were used. High virulence frequencies (85–100%) to most resistance genes were found. Lower virulence frequencies (14.1–40.1%) were found to only three resistance genes that have not been described yet; their preliminary designations are Ml(Va), Ml(Dt) and Ml(Ca). The importance of resistance of winter barley cultivars is discussed with respect to limiting the speed with which the pathogen adapts to genetic resistances possessed by commercial cultivars of both winter and spring barley, and to the necessity of lowering the costs for powdery mildew control in barley.

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