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Agnieszka Synowiec

Agnieszka Synowiec
Université d'Orléans - Centre Universitaire de Chartres · Laboratoire de Biologie des Ligneux et des Grandes Cultures

25.2
 · 
PhD
About
85
Research items
6,396
Reads
177
Citations
Introduction
I am focusing on the application of botanical herbicides for weed management, with a stronger impact on essential oils of Polish origin (temperate climate) for control of annual broadleaf weeds and grass-weeds.
Research Experience
Sep 2018 - Sep 2019
Université d'Orléans
Position
  • LeStudium Research Fellow
Description
  • Collaboration on the project "Biological effects of essential oils"
Sep 2017
University of Agriculture in Krakow
Position
  • Associate Professor
Description
  • I am a researcher & academic teacher. My research is about allelopathic interactions between weeds and crops and herbicide-resistant weeds.
Jan 2009 - Sep 2010
University of British Columbia - Vancouver
Position
  • Researcher
Description
  • I was conducting research in the area of ecophysiology of plants. 1) The effect of herbicides on development of endomycorrhizal fungi on maize; 2) the physiological response of weeds to UVB radiation; 3) the herbicidal effects of clove essential oil.
Education
Oct 2000 - Dec 2004
University of Agriculture in Krakow
Field of study
  • Weed Science
Sep 1995 - Jun 2000
Network
Cited By
Followers
Following
Projects
Projects (4)
Project
The goal is to assess the biology and development of herbicide-resistant weeds in the presence/absence of crop in the changing soil and climatic conditions.
Project
Under the scenario of climate change, these species are changing their behaviour and becoming important weeds in places where they were not a problem before. For this reason, this project, which is being carried out by the EWRS Working Group of Germination and Early Growth, is studying the emergence and development of several populations of these two species in order to develop models to describe these two biological aspects. This way we will be able to better understand and control their populations.
Research
Research items (85)
Answer
That depends. If you want to study a pure biological responses of crops to treatments, it is good to start with the pot experiment. When you will find an interesting response, then expand it into the field operations.
Answer
Thank you Weria and Muhammad for your suggestions. Is there any possibility to use dye instead of radioisotopes?
Question
I am searching for the best way to study the deposition of a herbicide within the plant tissues, mostly seeds. I would like to assess the deposition visually, under the light microscope. Any suggestions?
Article
This study is aimed to determine the effect of spring soil application of caraway (Carum carvi L.) essential oil (EO) with silicon dioxide (SD) carrier on weed infestation, the yield of maize (Zea mays L.), and microbiological soil activity. A two-year field experiment was set up in southern Poland on the brown soil. The results showed that SD-EO...
Poster
Full-text available
Silky bentgrass (Apera spica-venti (L.) P.Beauv.) is one of the most troublesome grass-weeds in Poland. There are also several herbicide-resistant biotypes of this weed in the country. The timing of emergence as well as the development of different populations of silky bentgrass is crucial for their competitive abilities and their response to the h...
Article
Full-text available
Celem badań było określenie wpływu różnych dawek mączki z okwiatów i nasion barszczu Sosnowskiego na kiełkowanie i początkowy wzrost kukurydzy (Zea mays ssp. indurata Sturt .), chwast-nicy jednostronnej (Echinochloa crus-galli (L .) P .Beauv .) i szarłatu szorstkiego (Amaranthus retroflexus L .). Doświadczenie założono w tunelu foliowym w Krakowie-...
Article
Full-text available
The aim of this study was to examine the influence of microencapsulated essential oils (EO) of peppermint (Mentha × piperita L.) and caraway (Carum carvi L.) on the initial growth and metabolism of maize (Zea mays L.). Four concentrations EO of caraway and peppermint, i.e. 3, 30, 300 and 3000 mg·L-1 , were used. The influence of EO on the energy of...
Question
In my Department we also study the soil-application of a biochar, of coniferus trees origin (scobs). What kind of biochars do you use in your study?
Poster
Full-text available
Celem badań była ocena wpływu nalistnej aplikacji roztworów kwasu cytrynowego i kwasu octowego na wzrost, rozwój i biomasę inwazyjnej nawłoci kanadyjskiej (Solidago canadensis L.).
Poster
Full-text available
This is an abstract of a poster presented during the Congress of Allelopathy
Presentation
Full-text available
Celem badań było określenie wpływu różnych dawek mączek z okwiatu i nasion barszczu Sosnowskiego na kiełkowanie i początkowy wzrost kukurydzy pastewnej (Zea mays ssp. indentata Sturt) oraz chwastnicy jednostronnej (Echinochloa crus-galli (L.) P. Beauv.) i szarłatu szorstkiego (Amaranthus retroflexus L.) w warunkach zbliżonych do naturalnych.
Project - Formulations of essential oils for foliar and soil application
Update
We are testing injuries of weeds and maize following the foliar application of o/w emulsions of caraway or peppermint EO and a commercial adjuvant containing oilseed rape FAME. That is a laboratory experiment, with biometric measurements of plants treated with o/w emulsions.
Project - Stocking and controlling invasive Sosnowsky hogweed (Heracleum Sosnowskyi) on large areas in south of Poland
Update
We are testing the emergence ability of H. sosnowskyi following the long-term storage of seeds in the anaerobic conditions.
Poster
The aim of the carried out research was to estimate the effect of foliar application of citric and acetic acid solutions on damages of aboveground parts, growth inhibition and biomass reduction of invasive Canadian goldenrod (Solidago canadensis L.)
Poster
Full-text available
The aim of the conducted research was to estimate the phytotoxic effect of foliar application of citric and acetic acid water solutions on growth inhibition and biomass reduction of invasive Canadian goldenrod.
Project - Formulations of essential oils for foliar and soil application
Article
Full-text available
In this study, we tested whether the addition of fatty acid methyl esters (FAME) of edible oils would influence the herbicidal effect of the essential oils (EO) of fiber hemp and peppermint (Mentha×piperita L.) against common lambsquarters, barnyardgrass, and corn. The herbicidal properties of a 2.5% concentration of each EO in water mixtures with...
Article
Full-text available
Cereal straw is an important biomass source in Europe. This work assessed: 1) the morphological and energetic characteristics of culms of spring and winter cereals, 2) the energy deposited in the different aboveground parts of cereals, 3) losses of energy due to different cutting heights. The straw of winter and spring cereals was collected from ar...
Poster
Full-text available
Celem badań była ocena wpływu nalistnej aplikacji roztworów olejku fenkułowego, kminkowego i tatarakowego na uszkodzenia części nadziemnych, redukcję biomasy i zahamowanie początkowego wzrostu.
Article
This work aimed to assess the phytotoxic potential of 12 essential oils (EOs) collected from plants growing in natural or cultivated stands in a temperate climate, i.e., Achillea millefolium, Acorus calamus, Carum carvi, Chamomilla recutita, Foeniculum vulgare, Lavandula angustifolia, Melissa officinalis, Mentha × piperita, Salvia officinalis, Soli...
Article
Full-text available
The aim of the present study was to assess the degree of colonization of maize fields by the greater or hedge bindweed, Calystegia sepium L. in the vicinity of Krakow, and to investigate the habitat preferences of this weed. On the basis of field trips, carried out in 88 fields of maize, we found that C. sepium had colonized approximately 30% of th...
Article
Full-text available
The aim of the study was to determine the effect of soil-maltodextrin (MDX) and MDX microencapsulated essential oils (EOs, 12%) of peppermint (Mentha × piperita L.), caraway (Carum carvi L.) or calamus (Acorus calamus L.) at various doses (0.75, 1.5 and 3 g/pot), on the initial growth of maize (Zea mays L.), barnyard grass [Echinochloa crus-galli (...
Article
Full-text available
Heracleum sosnowskyi is one of the three so-called tall or giant hogweeds currently invading Asia, Europe and North America. These plants are dangerous invasive weeds, causing severe skin injuries in humans and animals. In the present study, based on four field experiments, we assessed seedling emergence in the field and evaluated methods for the l...
Poster
Full-text available
Celem badań była ocena wpływu nalistnej aplikacji wodno-acetonowych roztworów olejków eterycznych: fenkułowego, kminkowego i tatarakowego oraz kwasów pochodzenia naturalnego: cytrynowego i octowego na wzrost i rozwój inwazyjnej nawłoci kanadyjskiej.
Article
Full-text available
Solidago gigantea Ait. (goldenrod) belongs to the most expansive environmental weeds, and it is the most dangerous plant-invader of American origin in Europe. The species easily propagates vegetatively, but it also produces large amounts of wind-disseminated achenes that contribute to the colonization of new areas. A sound knowledge of the germinat...
Presentation
Full-text available
The weed-controlling effect of microcapsules, containing caraway essential oil, was visible mostly during a short time after their application. In general, weeds were more susceptible to MDX microcapsules. MDX carrier alone also displayed a weed-controlling effect.
Article
Full-text available
The study aimed to determine the effect of aqueous extracts of medicinal plants (Matricaria chamomilla, Hypericum perforatum, Achillea millefolium, and Urtica dioica) containing allelopathic compounds on seed germination in lambsquarters (Chenopodium album) and herbicide-resistant windgrass (Apera spica-venti). A Petri-dish experiment was carried o...
Poster
Full-text available
The aim of the conducted research was to estimate an autoallelopathic potential of two invasive species of goldenrods – Canadian goldenrod and giant goldenrod
Article
Full-text available
Essential oils have herbicidal effects, which can potentially be improved by the addition of adjuvants. The present study evaluated (1) the stability and other physicochemical properties of peppermint and caraway oils in oil-in-water emulsions and mixtures with commercially available adjuvants and (2) the phytotoxic effects of the foliar applicatio...
Article
Full-text available
Fiber hemp plants (Cannabis sativa L.) display competitive and allelopathic activity against weeds. Fiber hemp essential oil (EO) was previously assessed for its antimicrobial properties. In this work we aimed to assess the allelopathic efficacy of this EO. The essential oil derived from the inflorescences of fiber hemp cv. ‘Bialobrzeskie’ containe...
Article
Full-text available
Clove oil and its principal constituent, eugenol, display herbicidal contact action on annual broadleaf weeds. In the present study, we examined the early effects of clove oil (CL) and its main constituents: eugenol (E), eugenol + humulene (E + H) and eugenol + caryophyllene (E + C) on the physiological state of broccoli leaves during the first 60...
Article
Full-text available
Plants of Heracleum sosnowskyi Manden. are rich in essential oil which might be of herbicidal potential. In this study, we examined 1) the content and chemical composition of H. sosnowskyi essential oil (EO) distilled from seeds and 2) the herbicidal effect of EO in a bioassay against germination of maize and five weed species. As a result, a 5.1%...
Poster
Full-text available
Celem badań przeprowadzonych w 2014 r. była ocena wpływu nalistnej aplikacji wodno-acetonowych roztworów olejków eterycznych: fenkułowego, kminkowego i tatarakowego oraz kwasów pochodzenia naturalnego: cytrynowego i octowego na wzrost i rozwój inwazyjnej nawłoci kanadyjskiej.
Poster
Full-text available
Wykorzystanie olejków eterycznych do ochrony upraw przed chwastami jest najnowszym i najmłodszym kierunkiem praktycznego zastosowania olejków eterycznych w rolnictwie i warzywnictwie. W szeregu badań wykazano, że działają one podobnie jak herbicydy kontaktowe, a zastosowane w odpowiednim stężeniu i warunkach pogodowych, wywołują obserwowalne uszkod...
Presentation
Full-text available
Celem badań była ocena allelopatycznego wpływu wyciągów wodnych z roślin towarzyszących nawłociom w zbiorowiskach, tj: z pokrzywy zwyczajnej, wrotyczu pospolitego i chrzanu pospolitego na początkowy wzrost i biomasę nawłoci.
Article
Full-text available
Root competition for below-ground resources between edible plants may provide for long-term sustainability of agriculture systems. Intercropping can be more productive than a pure crop due to taking advantage of the morphological differences between species. In pure cropping, all biophysical interactions between plants occur through soil conditions...
Poster
Full-text available
Celem przeprowadzonych badań było określenie zawartości makroelementów w liściach i nasionach barszczu Sosnowskiego pod względem przydatności paszowej.
Poster
Celem badań było określenie zawartości wybranych pierwiastków śladowych w wysuszonych liściach i nasionach barszczu Sosnowskiego.
Poster
Full-text available
Celem badań było określenie zawartości wybranych pierwiastków śladowych w wysuszonych liściach i nasionach barszczu Sosnowskiego.
Question
I am searching for the different methods of the herbicide efficacy assessment. What are your favorite scales/ methods to assess a level of herbicidal injuries in weeds and/ or crops? Visual, metrical?
Poster
Full-text available
Celem badań wykonanych w 2013 r. była ocena fitotoksycznego wpływu wodnych roztworów olejków eterycznych: kminkowego, koprowego i tatarakowego oraz roztworów wybranych substancji naturalnych: kariofilenu, kwasu octowego i kwasu cytrynowego na wzrost i rozwój nawłoci kanadyjskiej.
Poster
Full-text available
Celem przeprowadzonych badań była ocena występowania kielisznika zaroślowego w uprawach kukurydzy na obszarze Pogórza Wielickiego w powiązaniu z wybranymi właściwościami warstwy ornej gleby, bliskością cieków wodnych oraz stosowaniem herbicydów.
Presentation
Full-text available
Celem badań była ocena występowania kielisznika zaroślowego w uprawach kukurydzy na terenie Płaskowyżu Proszowickiego w powiązaniu z wybranymi właściwościami warstwy ornej gleby oraz bliskością cieków wodnych.
Article
Full-text available
The study aimed to determine the usefulness of isothermal calorimetry and FT-Raman spectroscopy for the early evaluation of rigid ryegrass resistance to fenoxaprop-P ethyl (active ingredient one of aryloxyphenoxypropionate herbicides). The calorimetric measurements were done on the 4-day-old seedlings of susceptible and resistant biotypes of rigid...
Article
Full-text available
Our experiment aimed at assessing the influence of ultraviolet-B (UV-B) radiation on the growth and colonization of roots of two invasive rangeland species: houndstongue (Cynoglossum officinale L.) and downy brome (Bromus tectorum L.) with arbuscular mycorrhizal fungi (AMF). As a result, after 13 weeks of growth in the presence of 8 kJ*m-2 UV-B rad...
Answer
Hi, I would go for the simpliest tool, which is the ability of a crop-plant to compete with weeds. Instead of applying any physical or other sophisticated methods of weed management, one can simply regulate weed number by cultural methods, such as the proper sowing time, increased sowing rate, choosing crop cultivars which are the best adopted to the habitat, keep soil under crop cover for as long as possible! Try these first, worry about weed management later!
Answer
Hello, to the above comments I can add, that you should try the first experiment in the controlled conditions, as in the field, the non-synthetic herbicides can interact with environmental factors (just as the syntetic ones). So try first in the pots, in the greenhouse, then, if the results will be satisfactory, switch to the field.
Article
Full-text available
A field experiment was undertaken to study the growth and productivity of linseed and pea cultivars grown in either a pure sowing or mixture in the vegetative seasons, 2004–2006. Two different mixtures were studied: oil-linseed cv. ‘Flanders’ with grain–peas cv. ‘Ramrod’ (mixture I) or oil-linseed cv. ‘Barbara’ with fodder–peas cv. ‘Phönix’ (mixtur...
Article
Full-text available
The study aimed at evaluating the distribution of mass in the straw of cereal species and also at assessing the straw yield and its losses resulting from the amount of the stubble left in the field. It was found empirically that the wheat culms are composed of five internodes, and in barley, triticale and oats of six. The highest straw mass per 1 c...
Article
Full-text available
The experiment aimed at comparison of the fresh and dry biomass of aboveground parts and roots of redroot pigweed ( Amaranthus retroflexus L.) depending on plant density. A micro-plot (1m 2 plots) experiment was set up in 2012 at the experimental station Totem Field at UBC, Vancouver, Canada, as a randomized block design with four replications per...
Article
Full-text available
Herbicidal activity of clove oil and its main constituents eugenol, β-caryophyllene, and α-humulene was studied by measuring their effects on cell membrane integrity in broccoli and common lambsquarters plants at the three- and nine-leaf stage, respectively. Roles of essential oil constituents in the overall phytotoxicity of clove oil, dose-respons...
Article
Full-text available
A field experiment was conducted to investigate different phosphorus fertilizer sources and their importance in rapeseed farms on 2007 at Arak, Iran. Ammonium phosphate fertilizer with 50% P 2 O 5 (APF) was used as a chemical phosphorus source with 3 rates of application, whereas phosphorus solubilizing bacteria (PSB) was a biological source of pho...
Article
Full-text available
This greenhouse experiment evaluated the response of hoary alyssum plants, up to the rosette phase, to different levels of UV-B radiation. The experiment was carried out in the chambers, equipped with UV-B lamps, emitting biologically effective UV-B radiation of 0 (control), 4, 6 or 8 kJ. As a result, specific traits of the plants such as: leaf num...
Article
Full-text available
The determinants of semileafl ess peas (Pisum sativum L., cv. Tarchalska) crop productivity were studied during two vegetative seasons: cool 2010 and warm 2011 in south part of Poland (Modzurów 50°09’N 18°07’E; 274 m. a.s.l.. Peas was treated either with seed vaccine (NitraginaTM) containing Rhizobium bacteria or foliar micronutrient fertilizer (Ph...
Article
Full-text available
Bromus L. is a genus belonging to Poaceae family (Kapeluszny & Haliniarz 2007). This genus includes about 80 species (Mowszowicz 1986). The most frequent species among Bromus is cheat (Bromus secalinus L.), grown both, as spring and winter form. Cheat grows mostly in cereals, namely, winter wheat and rye, as a weed. It occurs on sandy soils but som...
Article
Full-text available
In the years 2006-2008, comparative studies of productivity andplant architecture of open pollinated winter oilseed rape cv. NKPetrol and white mustard cv. Nakielska were undertaken.Morphological traits, including the stem architecture and displayof the siliques of both species, were studied. The contribution of the fruiting part of the plant as we...
Article
Full-text available
In a greenhouse pot culture study, corn plants were grown in sterilized soil containing mycorrhizal fungus Glomus intraradices and different concentrations of Converge Pro® herbicide (19.8, 39.6, 79.2, and 158.4 µg a.i. isoxaflutole L−1 soil). Mycorrhizal colonization of corn roots was observed to be 10 to 20% at 6 wk (exp. I) and 50 to 60% at 8 wk...
Article
Synopsis. Stwierdzono ekspansję trzech gatunków chwastów polnych – dwóch gatunków kenofi tów: Galinsoga ciliata Blake i G. parvifl ora Cav. i jednego gatunku archeofi ta Avena fatua L. na terenie doliny Wisły powyżej Krakowa. Na badanym terenie stwierdzono występowanie Avena fatua L. w 55 zdjęciach fi tosocjologicznych w 6 miejscowościach, poza dot...
Article
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In growing maize, an increase in the content of phenolic compounds and selected phenolic acids in soil was found after the incorporation of white mustard, buckwheat, spring barley, oats and rye mulches into the soil. The highest content of phenolic compounds in soil was found after oats mulch incorporation (20% more than in the control soil). The h...
Article
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The paper presents characterization and concentration of medicinal plants in fallows of Przemyśl Foothills. The research was conducted in August 2005 year, in villages: Leszczyny, Sopotnik, Paportno, Huwniki (southeastern part of Foothills) and Olszany (north part of Foothills). On the basis of the list of medicinal plants, the investigation was ca...
Article
Full-text available
In the years 2003-2004 two experiments: laboratory and field, were carried out to detect the level of wild oat herbicide resistance. Weeds were collected from fields in south-eastern Poland, on the basis of survey conducted between farmers who have problems with wild oat herbicidal fighting. Two herbicides were tested: fenoxaprop- P-ethyl and diclo...