SAB

Microfinance as a tool for poverty reduction: A study of Jordan
Application Natura 2000 data for the invasive plants spread prediction
Genetic diversity of Plukenetia volubilis L. assessed by ISSR markers
Evaluation of slender spindle form in young ‘Topaz’ apple orchard
Effect of dietary medium-chain fatty acids on Campylobacter jejuni in broiler chickens
Salinity stress tolerance of camelina investigated in vitro

Microfinance as a tool for poverty reduction: A study of Jordan

Žiaková, M., Verner, V.

Page: 172-180

Business modelling facilitates the understanding of value creation logic in organizations in general. Identifying the components of business models based on different criteria helps understanding the fundamentals of business and the position of entrepreneurs and managers in companies. The present research is focused on the definition of a specific business model for the Czech agribusiness sector. Based on the theoretical background and evaluation of selected business models, the aim is to create a new business model, using components which take into a ccount the specifics of this particular industry.
small farms; Canvas; Czech agritourism; modelling of business; strategy; business model components

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Application Natura 2000 data for the invasive plants spread prediction

Pěknicová, J., Petrus, D., Berchová-Bímová, K.

Page: 159-166

The distribution of invasive plants depends on several environmental factors, e.g. on the distance from the vector of spreading, invaded community composition, land-use, etc. The species distribution models, a research tool for invasive plants spread prediction, involve the combination of environmental factors, occurrence data, and statistical approach. For the construction of the presented distribution model, the occurrence data on invasive plants (Solidago sp., Fallopia sp., Robinia pseudoaccacia, and Heracleum mantegazzianum) and Natura 2000 habitat types from the Protected Landscape Area Kokořínsko have been intersected in ArcGIS and statistically analyzed. The data analysis was focused on (1) verification of the accuracy of the Natura 2000 habitat map layer, and the accordance with the habitats occupied by invasive species and (2) identification of a suitable scale of intersection between the habitat and species distribution. Data suitability was evaluated for the construction of the model on local scale. Based on the data, the invaded habitat types were described and the optimal scale grid was evaluated. The results show the suitability of Natura 2000 habitat types for modelling, however more input data (e.g. on soil types, elevation) are needed.
invasive species; habitat type; modelling scale; species distribution models (SDMs)

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Genetic diversity of Plukenetia volubilis L. assessed by ISSR markers

Ocelák, M., Hlásná Čepková, P., Viehmannová, I., Dvořáková, Z., Huansi, D.C., Lojka, B.

Page: 145-153

The diversity and genetic relationships in 173 sacha inchi samples were analyzed using ISSR markers. Thirty ISSR primers were used, only 8 showed variability in tested samples. ISSR fragments ranged from 200 to 2500 bp. The mean number of bands per primer was 12 and the average number of polymorphic bands per primer was 11. The lowest percentages of polymorphic bands (27%), gene diversity (0.103), and Shannon’s information index (0.15) were exhibited by the Santa Lucia population, which was also geographically most distant. This fact may be attributed to a very small size of this group. In contrast, the Dos de Mayo population exhibited the highest percentage of polymorphic bands (78%), and the Santa Cruz population the highest Nei’s gene diversity index (0.238) and Shannon’s information index (0.357). The obtained level of genetic variability was 36% among tested populations and 64% within populations. Although the diversity indices were low, a cluster analysis revealed 8 clusters containing mainly samples belonging to individual populations. Principal coordinate analysis clearly distinguished Chumbaquihui, Pucallpa, Dos de Mayo, and Aguas de Oro populations, the others were intermixed. The obtained results indicated the level of genetic diversity present in this location of Peru, although it is influenced by anthropological aspects and independent on the geographical distances.
genetic variability; molecular markers; populations; Sacha inchi

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Evaluation of slender spindle form in young ‘Topaz’ apple orchard

Buráňová, Š., Černý, J., Mitura, K., Lipińska, K.J., Kovářík, J., Balík, J.

Page: 47-53

The aim of this study was to evaluate winter wheat grain qualitative and yield parameters after the application of different organic and mineral fertilizers at two sites in the Czech Republic (S1 – Lukavec, S2 – Prague-Suchdol). For the purpose of this paper grain yield (GY, t ha–1), thousand kernel weight (TKW, g), bulk density (BD, g l–1), grain crude protein content (CP, %), and falling number (FN, s) were determined with regard to the CSN461100-2 (2001) standard for food wheat. Significantly highest values of GY and BD at both sites and of CP at S2 were observed after the use of nitrogen in mineral form. At S1, significantly highest values of FN were obtained after the use of mineral fertilizers in combination with straw. The required limit of BD for food wheat was met for all fertilization treatments, while that of CP only at S2 by treatments with mineral nitrogen fertilizers. At S2, a strong correlation between all evaluated traits was registered. Low correlation was found at S1 between TKW and other evaluated traits.
grain quality; nitrogen; wheat; fertilizer; protein content; bulk density

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Effect of dietary medium-chain fatty acids on Campylobacter jejuni in broiler chickens

Hovorková, P., Skřivanová, E., Kudrnová, E., Marounek, M

Page: 154-158

The inhibitory properties of a commercial product Fortibac® containing medium-chain fatty acids on Campylobacter jejuni were determined. The product is a mixture of C6:0-C14:0 fatty acids. After testing the antibacterial properties towards C. jejuni in in vitro conditions, an experimental infection on broiler chickens was performed to confirm the results. The product was admixed with feed (final concentrations 0, 0.25, and 0.5%) and broiler chickens were artificially infected with C. jejuni VFU 612. The chickens were infected on day 16 of age, while the aforementioned feed mixtures were used during the entire fattening period (days 0–35). After the infection, the dynamics of C. jejuni shedding was evaluated among treated groups and the control. Reduction of the number of campylobacters by the product with medium-chain fatty acids was not confirmed in vivo. It is assumed that the final amount of potentially active fatty acids in the digestive tract was not sufficient. The product, however, had a clear beneficial impact on mortality of infected chickens.

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Salinity stress tolerance of camelina investigated in vitro

Khalid, H., Kumari, M., Grover, A., Nasim, M.

Page: 137-144

The ability of Camelina sativa to withstand salinity stress in vitro by adding NaCl (0, 25, 50, 75, 100, 125, 150, 175, 200mM) in Murashige and Skoog basal medium was studied. Performance of the plants was measured in terms of various growth parameters and physiological and biochemical tests performed on fully grown plants. The germination capacity, cotyledon unfolding and first true leaf emergence was reduced by 30.6, 17.3, and 28.8%, respectively in 200mM salt treatment with respect to control. The plant height, relative water content, and plant water content were decreased by 85.4, 10.8, and 9.8%, respectively, in stressed plants with respect to control. A decrease in chlorophyll a and b and total chlorophyll contents (by 81.3%), as well as of protein content was registered. Electrical conductivity increased by 52.8% in stressed plants over control, as expected. Other stress indicators like guiacol peroxidase activity and malondialdehyde also increased with respect to control. At salt concentrations lower than 200mM, no clear cut retardation effects were seen. Thus, the present study opens up the scope of further assessment of survivability of camelina in salt contaminated soils.
growth; pigments; proteins; lipid peroxidation