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1

Effects of soil substrate contaminated by knotweed leaves on seed development

100%
Sera B.
Polish Journal of Environmental Studies
|
2012
|
tom 21
|
nr 3
The aim of our experiment was to evaluate phytotoxicity of three knotweed species (Reynoutria japonica, R. sachalinensis, R. x bohemica). The tests examined suppression of germination in the seeds of two crop plants (Leucosinapis alba, Brassica napus) and two weed plants (Chenopodium album agg., Echinochloa crus-galli) using dried knotweed leaves mixed with soil. Data processing by two-way ANOVA has shown that the type of seed tested was a more important factor affecting germination than the type of knotweed leaves used to contaminate the soil. The tested crop plants were more sensitive than either weed plant. The highest phytotoxicity was found for crop plants cultivated in soil contaminated with R. japonica leaves (wherein seed germination for L. alba was 35% and for B. napus 43%). Reaction of weed plant was stimulatory (seed germination for E, crus-galli in soil contaminated with R. sachalinensis leaves was 191%). This response is probably plant hormesis.
2

Road-side herbaceous vegetation: life history groups and habitat preferences

100%
Sera B.
Polish Journal of Ecology
|
2010
|
tom 58
|
nr 1
The study examine s the vegetation diversity (235 herbaceous species) in variable road-site types in terms of life history components (life traits) like life form, type of pollination, seed dispersal, spreading ability, life strategy according to Grime’s classification, and in terms of habitat preferences using Ellenberg’s indicator value (in relation to light, temperature, moisture, nitrogen, soil pH and soil salinity). Plants registered as alien species were evaluated also according to invasive status, level of abundance, introduction mode and land use habitat. Study localities (9 sites) were situated in the Českomoravská highlands and the South Bohemian regions (Czech Republic). The plant species were recorded in the bands (width in range of 1.5–3.0 m) along the verge of two types of roads (motorways with median stripes) and secondary roads (II and III classes). In total – road length of about 15 km and the total area of roadside vegetation of about 8 ha were surveyed. The annual/therophyte species with a tendency to seed dispersed by wind, preferring a light and dry habitat, and having the RC (competitive-ruderal) life strategy were mainly found along the motorways. It means that road verges along motorways are quite insolated and constitute the dry habitats, probably suitable for ruderal, weedy, non-native, and invasive species. On the contrary, species with a tendency to vegetative reproduction and the C (competitive) strategy occur mainly along the secondary roads. It seems that the secondary roads are alternative habitats for grassland flora. Species occurred on the verges of the secondary roads do not belong to the particular group of the life traits. The salt tolerant species Puccinellia distans (Jacq.) Parl. was found along all types of roads. Almost 24% of all recorded herbaceous species growing in road-sites were alien species.
3

Stress tolerant plant species spread in the road-net

100%
Sera B.
Ecological Questions
|
2011
|
tom 14
Roads are known for being corridors for not only migration of small animals, but also expansive, invasive and halophytic plants. At least sixteen wildly growing halophytes and many other salt-tolerant species were found along various types of roads in the Czech Republic. The most halophytes belonged to the families of Poaceae (23%) and Asteraceae (20%). Since many plants growing along roads are weeds, there is a real danger that these plants will invade nearby agricultural crops. Thus biological degradation of agricultural areas can be started.
4

Roadside habitats : the impact of salinization on the occurrence, growth and reproduction of two weed species Echinochloa crus-galli and Digitaria sanguinalis

51%
Novakova M., Sera B., Cudlin P.
Polish Journal of Ecology
|
2019
|
tom 67
|
nr 3
5

Response of the Digitaria sanguinalis (L.) Scop. to the soil salinity - a greenhouse experiment

51%
Sera B., Hruskova I., Novakova M.
Ecological Questions
|
2011
|
tom 14
Large crabgrass is not registered in the Ellenberg’s list of halophyte species, but it growths in salt contaminated soil along roads. Our manipulative experiment in greenhouse was focused on growth activities of Large crabgrass in salt soil condition. Saline solutions of sodium chloride were 0, 0.12, 0.25, 0.50, 0.99, and 1.96%. The experiment confirmed the successful growth and development of Large crabgrass in soil contaminated with salt (0.12% of NaCl). The inhibitive effect was found in soil with NaCl concentration more than 0.12%.
6

Phytometric assessment of fertility of roadside soils and its relationship with major nutrients

51%
Akbar K. F., Hale W. H. G., Sera B., Ashraf I.
Polish Journal of Environmental Studies
|
2012
|
tom 21
|
nr 5
Roadside verges have obtained an important status in modern landscapes for conservation biodiversity, and their soils play a significant role in this regard. In designing more appropriate strategies for the integrated management of roadside habitats for nature conservation, the knowledge of physico-chemical characteristics of their associated soils is a prerequisite. The fertility of roadside soils in northern England was determined both by phytometric assessment using tomato plant and by chemical analyses of nitrogen, potassium, and phosphate levels. By comparing levels of these nutrients with their published normal levels, it was found that these soils have sub-optimum to optimum levels of fertility. The results of phytometric assessment revealed that the soils have low to medium levels of fertility. The fertility exhibited a pattern of zonation in the roadside soils with an increase with increasing distance from paved roads. Three nutrients were correlated with phytometirc assessments, and it was found that only nitrogen had a significant correlation with results of phytometric assessment.
7
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Determination of recreation potential in three urban forests

51%
Levandovska N., Sera B., Zarnovican H., Akbar K. F.
Sylwan
|
2021
|
tom 165
|
nr 09
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