Weed vegetation of arable land in Slovakia: diversity and species composition

Májeková, Jana; Zaliberová, Marica; Škodová, Iveta

doi:10.5586/asbp.3637

Cited by 7 publications

(6 citation statements)

References 40 publications

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“…Kolářová et al (2013b) also report the highest incidence of endangered weed species in cereals, especially spring. In Slovakia, Májeková et al (2019) confirm the priority occurrence of endangered weeds in cereals and at least in root crops. This is associated with the fact that endangered weeds mostly include therophytes, with winter or early spring germination regime having its optimum development in cereals.…”

Section: Resultsmentioning

confidence: 58%

“…It will therefore depend on the specific conditions of the habitat and the intensity of farming. Extensively cultivated fields provide refuges for the survival of rare species (Májeková et al 2019). The number of Red List species in the vegetation is higher in complex than in simple landscapes and decreased when the percentage of arable land cover increased (Roschewitz et al 2005).…”

Section: Resultsmentioning

confidence: 99%

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Weed vegetation in conventional and organic farming in West Bohemia (Czech Republic)

Tyšer¹,

Kolářová²,

Tulačka³

et al. 2021

PLANT SOIL ENVIRON

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The paper presents species richness and composition of arable weed vegetation in the region of West Bohemia (Czech Republic) in different types of farming (conventional and organic) and grown crops (winter and spring cereals, wide-row crops). During the field survey in the years 2007 to 2017, 105 phytocoenological relevés were recorded. The average species richness in one relevé was significantly higher in organic farming, as well as total weed cover. The lowest species richness was found in wide-row crops. Recently widespread species belonged to the most frequent species in our study. Based on multivariate statistics, the effects of variables on the occurrence of weed species were found as statistically significant. Most of the variability in data was explained by crop, following by type of farming. Weed species of Fabaceae Lindl. family (especially Vicia L.) and many perennial species positively correlated with the organic type of farming. Endangered species were found mainly in organic farming and cereals. Less intensive cultivation with a higher weed cover is beneficial for the promotion of biodiversity.

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Section: Resultsmentioning

confidence: 58%

Section: Resultsmentioning

confidence: 99%

Weed vegetation in conventional and organic farming in West Bohemia (Czech Republic)

Tyšer¹,

Kolářová²,

Tulačka³

et al. 2021

PLANT SOIL ENVIRON

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“…Just as found in this survey, species richness differed substantially among the fields, ranging from 0 to 49 species per relevé. Another arable land survey, Májeková et al (2019) present 407 plant taxa found on arable land in 46 plant families. The most frequent taxa were T. inodorum (74%), Cirsium arvense (L.) Scop.…”

Section: Landscape-level Weed Diversitymentioning

confidence: 99%

Characterisation of Czech arable weed communities according to management and production area considering the prevalence of herbicide‐resistant species

et al. 2023

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Herbicide resistance is a widespread issue that impacts management of conventional farms, but also has ramifications for the weed community assembly; it is therefore important to see how these species factor into the weed community assembly of farms throughout the countryside. This research analysed species richness and community diversity in 98 field relevés from 48 organic and 50 conventional farms evenly distributed between two major production regions of the Czech Republic and then evaluated the incidence of species which have been reported resistant in the Czech Republic and its neighbouring countries. Farms were selected independently of any acknowledged resistant species. Out of 164 species found in this survey, only eight species have had herbicide‐resistant biotypes reported in the Czech Republic, while a total of 19 species had herbicide‐resistant biotypes reported in neighbouring countries. Species with recorded resistance to PSII inhibitors in the Czech Republic tended to be found together and were mostly associated with the beet production region, characterised by low altitude: Amaranthus retroflexus, Chenopodium album, Echinochloa crus‐galli and Solanum nigrum. Species with reported resistance to ALS and ACCase‐inhibiting herbicides were not clearly associated with a particular region or farming type. Of the species which have had reported herbicide resistance in the neighbouring countries, several were found in conventional fields within the growing season and we recommend immediate screening for herbicide resistance in these species and more diligent action in management according to anti‐resistance strategies: Bromus sterilis resistant to ACCase‐inhibiting herbicides, A. retroflexus resistant to ALS‐inhibiting herbicides or Avena fatua resistant to ACCase and ALS‐inhibiting herbicides. This work is unique in that it is evaluating weed species diversity in organic and conventional farms and using the context to frame the prevalence of high‐risk herbicide‐resistant species; thereby putting the potential incidence of herbicide resistance into perspective at the landscape level.

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“…National weed surveys have been conducted in many countries, including among others Spain (Cirujeda et al 2011), Hungary (Novák et al 2012), Germany (De Mol et al 2015), Denmark (Andreasen et al 2018) and Slovakia (Májeková et al 2019). The major aim of those surveys has usually been to get updated information on the species composition of weed communities and the affecting factors.…”

Section: Introductionmentioning

confidence: 99%

Fifth survey on weed flora in spring cereals in Finland

Salonen¹,

Jalli²,

Muotila³

et al. 2023

AFSci

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Regular weed surveys provide information on changes in weed communities. The composition of weed flora in spring cereal fields was investigated in southern and central Finland during 2020–2022. The survey was conducted in 16 regions, 226 farms and 549 fields. The occurrence of weeds was assessed in the second half of July from 90 organically cropped and 459 conventionally cropped fields. The weed flora was dominated by broad-leaved species, representing 81% of the total number of 138 identified species. The average species number per field was 21 in organic fields and 12 in conventional fields. The most frequent weed species in organic fields were Chenopodium album 99%, Erysimum cheiranthoides 84%, Viola arvensis 83% and Stellaria media 82%. In conventionally cropped fields, the most frequent species were Viola arvensis 83%, Stellaria media 65%, Galeopsis spp. 59% and Galium spurium 59%. The two most common grass species in both production systems were Poa annua and Elymus repens. The frequency and density of Poa annua had increased substantially in conventional cropping since the previous survey in 2007–2009. The average density of weeds was 384 plants m-2 in organic fields and 147 plants m-2 in sprayed conventional fields. The average air-dry biomass of weeds was 678 kg ha-1 and 151 kg ha-1, respectively. Elymus repens produced almost a quarter of the total weed biomass in both production systems. Changes in weed flora were minor in terms of frequency and density of the most common broad-leaved weed species. Increased infestation of Poa annua in conventional cropping calls for special attention. The dominance of Elymus repens decreased in both production systems since the previous survey.

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Weed vegetation of arable land in Slovakia: diversity and species composition

Cited by 7 publications

References 40 publications

Weed vegetation in conventional and organic farming in West Bohemia (Czech Republic)

Weed vegetation in conventional and organic farming in West Bohemia (Czech Republic)

Characterisation of Czech arable weed communities according to management and production area considering the prevalence of herbicide‐resistant species

Fifth survey on weed flora in spring cereals in Finland

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