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  1. Article ; Online: Möglichkeiten und Grenzen des Einsatzes von Pelargonsäure-Herbiziden zur Unkrautbekämpfung

    Söchting, Hans-Peter

    2023  

    Keywords Text ; abstract_or_summary ; ddc:630
    Language German
    Publisher Julius Kühn-Institut
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article: Variation in pathogenicity and subsequent production of sclerotia of

    Zamani-Noor, Nazanin / Brand, Sinja / Noshin, Faria / Söchting, Hans-Peter

    Plant disease

    2024  

    Abstract: Cover crops and flower strips are used in agricultural fields as part of integrated pest management strategies. However, their potential as secondary hosts of soilborne pathogens such as Sclerotinia sclerotiorum in oilseed rape cultivation is not fully ... ...

    Abstract Cover crops and flower strips are used in agricultural fields as part of integrated pest management strategies. However, their potential as secondary hosts of soilborne pathogens such as Sclerotinia sclerotiorum in oilseed rape cultivation is not fully comprehended. In the current study, we evaluated the effect of pathogen virulence on the development of Sclerotinia stem/leaf rot and sclerotia production in 33 plant species from 11 botanical families using two S. sclerotiorum isolates. Furthermore, the effect of sclerotial size on carpogenic germination was studied. Results showed that the pathogen's virulence significantly affected the occurrence and development of Sclerotinia stem/leaf rot and the subsequent production of sclerotia. Among all plant species tested, 26 were more susceptible to the aggressive S. sclerotiorum isolate, which produced more and bigger sclerotia in 17 species than the less aggressive isolate. Moreover, a stronger positive correlation was found between the relative lesion length of plants inoculated with the aggressive isolate and the number of sclerotia produced by this isolate (rs = 0.572; p = 0.004). Additionally, we found that larger and heavier sclerotia produced stipes and apothecia earlier and at a greater rate than smaller ones. The sclerotia in the heavy-weight class had the highest carpogenic germination rate (82.4%), followed by the average (67.2%) and lightweight classes (59.5%). Our findings highlight the need for further investigation into the potential risks associated with cover crops, weeds, and flower strips as secondary hosts of soilborne pathogens in agricultural fields.
    Language English
    Publishing date 2024-01-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-05-23-0850-RE
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 2043: Show issues

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  3. Article ; Online: Renaissance von Kalkstickstoff zur Unkrautbekämpfung?

    Söchting, Hans-Peter / Redwitz, Christoph von

    2023  

    Keywords Text ; abstract_or_summary ; ddc:630
    Language German
    Publisher Julius Kühn-Institut
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Untersuchungen zur Lebensdauer der Diasporen von Datura stramonium L. ; Studies on the longevity of the diaspores of Datura stramonium L.

    Söchting, Hans-Peter / Clauß, Pauline

    2022  

    Abstract: Nicht zuletzt durch den Klimawandel und sich verändernde Anbaumethoden im Ackerbau breitet sich die neophytische Unkrautart Datura stramonium in Deutschland weiter aus. Als Spätkeimer profitiert die Art in landwirtschaftlichen Kulturen davon, dass dann ... ...

    Abstract Nicht zuletzt durch den Klimawandel und sich verändernde Anbaumethoden im Ackerbau breitet sich die neophytische Unkrautart Datura stramonium in Deutschland weiter aus. Als Spätkeimer profitiert die Art in landwirtschaftlichen Kulturen davon, dass dann Unkrautregulierungsmaßnahmen bereits abgeschlossen sind und sie sich dann dementsprechend gut entwickeln kann. Kenntnisse zur Samenbildung, zum Keimverhalten sowie zur Samenüberdauerung der Art sind für eine integrierte Bekämpfung notwendig. Um den Einfluss des Samenalters auf die Keimung der Samen zu untersuchen, wurde ein Keimtest mit Diasporen 16 verschiedener Jahrgänge aus dem Zeitraum 1973 bis 2019 durchgeführt. Ermittelt wurde die kumulative Keimrate und der KR50-Wert (Zeitpunkt an dem 50 % der Gesamtkeimrate erreicht sind). Parallel dazu wurde bei 10 der 16 geprüften Jahrgänge ein Triphenyltetrazoliumchlorid-Test durchgeführt, um auf diese Weise die Keimfähigkeit der Populationen im Labortest mit der generellen Lebensfähigkeit der Diasporen zu vergleichen. Die Ergebnisse dokumentieren eine lange Überlebensdauer der Samen, was bei der Bekämpfung der Art berücksichtigt werden muss.

    Not least due to climate change and changing cultivation methods in agriculture, the neophytic weed specie Datura stramonium continues to spread in Germany. As a late germinating weed, the specie benefits in agricultural crops from the fact that weed control measures have often already been completed and it can then develop accordingly well. Knowledge of seed formation, germination behaviour and seed persistence of the species is necessary for integrated control. To investigate the influence of seed age on seed germination, a germination test was carried out with diaspores of 16 different vintages from the period 1973 to 2019. The cumulative germination rate and the KR50 value (time at which 50% of the total germination rate is reached) were determined. In parallel, a triphenyltetrazolium chloride test was carried out on 10 of the 16 vintages tested in order to compare the ...
    Keywords Text ; article ; ddc:630 ; Datura stramonium ; Diasporen ; Keimung ; TTC-Test ; Weißer Stechapfel ; diaspore ; emergence ; jimson weed
    Subject code 801
    Language German
    Publisher Julius Kühn-Institut
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Studies on the efficacy of pelargonic acid for weed control ; Untersuchungen zur Wirksamkeit von Pelargonsäure zur Unkrautkontrolle

    Ogbangwor, Nnabuife / Söchting, Hans-Peter

    2022  

    Abstract: Up to now, weed control in agricultural and horticultural crops has been carried out predominantly with chemical-synthetic herbicides. These achieve a high efficacy with a broad spectrum of control. However, the environmental behaviour of these ... ...

    Abstract Up to now, weed control in agricultural and horticultural crops has been carried out predominantly with chemical-synthetic herbicides. These achieve a high efficacy with a broad spectrum of control. However, the environmental behaviour of these substances is in focus and attempts are being made to restrict their use. Whether fatty acid herbicides should be used as a better alternative in this context remains to be seen. Nonetheless, fatty acid herbicides are increasingly being approved for use in more and more applications in Germany. However, data gaps regularly occur in the evaluation within the framework of the approval procedure. For this reason, several trials with fatty acid herbicides were carried out at the Julius Kühn- Institut (JKI) in Braunschweig in order to investigate the effect of these herbicides on the basis of various influencing factors. The efficacy against 24 widespread arable and garden weeds was tested. In addition to testing the different sensitivity of the species, the focus was on the applied water volume. Overall, we found that monocotyledonous weed species were less sensitive to the tested pelargonic acid (Finalsan) and that there were significant differences depending on the water volume.

    Bisher erfolgt die Unkrautbekämpfung in landwirtschaftlichen und gartenbaulichen Kulturen überwiegend mit chemisch-synthetischen Herbiziden. Diese erzielen hohe Wirkungsgrade bei einem weiten Wirkungsspektrum. Allerdings steht das Umweltverhalten dieser Stoffe im Fokus und man versucht die Nutzung einzuschränken. Ob Fettsäureherbizide in diesem Zusammenhang als bessere Alternative genutzt werden sollten, sei einmal dahingestellt. Nichts desto trotz werden in Deutschland immer öfter fettsäurehaltige Herbizide in immer mehr Anwendungen zugelassen. Bei der Bewertung im Rahmen des Zulassungsverfahrens treten allerdings regelmäßig Datenlücken auf. Aus diesem Grund wurden am JKI in Braunschweig einige Versuche mit Fettsäureherbiziden durchgeführt um die Wirkung dieser Herbizide anhand verschiedener ...
    Keywords Text ; article ; ddc:630 ; abiotic factors ; dicotyledonous weeds ; efficacy ; monocotyledonous weeds ; pelargonic acid ; abiotische Faktoren ; einkeimblättrige Unkräuter ; Pelargonsäure ; Wirksamkeit ; zweikeimblättrige Unkräuter
    Subject code 801
    Language English
    Publisher Julius Kühn-Institut
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

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  6. Article: Effect of Pathogen Virulence on Pathogenicity, Host Range, and Reproduction of

    Zamani-Noor, Nazanin / Brand, Sinja / Söchting, Hans-Peter

    Plant disease

    2022  Volume 106, Issue 1, Page(s) 57–64

    Abstract: A series of greenhouse experiments was conducted to evaluate the effect ... ...

    Abstract A series of greenhouse experiments was conducted to evaluate the effect of
    MeSH term(s) Brassica napus/parasitology ; Host Specificity ; Plant Diseases/parasitology ; Plasmodiophorida/pathogenicity ; Virulence
    Language English
    Publishing date 2022-01-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 754182-x
    ISSN 0191-2917
    ISSN 0191-2917
    DOI 10.1094/PDIS-02-21-0410-RE
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 2043: Show issues

    Order via subito

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    Inter-library loan at ZB MED

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  7. Article ; Online: Welche Arten begünstigen die Verbreitung von Weißstängeligkeit?

    Söchting, Hans-Peter / Brand, Sinja / Zamani-Noor, Nazanin

    2023  

    Keywords Text ; ddc:630
    Language German
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Inter-library loan at ZB MED

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  8. Article ; Online: Effect of certain cover crops, and flowering plant strips on pathogenicity and inoculum production of Plasmodiophora brassicae and Sclerotinia sclerotiorum

    Zamani-Noor, Nazanin / Brand, Sinja / Söchting, Hans-Peter

    2023  

    Keywords Text ; abstract_or_summary ; ddc:570 ; ddc:630
    Language English
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Lebensmittelkontamination durch Unkräuter – Es war einmal? ; Food contamination by weeds – Once upon a time?

    Söchting, Hans-Peter

    2018  

    Keywords Text ; abstract_or_summary ; ddc:630
    Language German
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  10. Article ; Online: Herbizidkontrolle verschiedener Amarant-Arten in Mais und Zuckerrüben ; Herbicide control of different Amaranth-species in maize and sugar beet

    Söchting, Hans-Peter

    2018  

    Keywords Text ; abstract_or_summary ; ddc:630
    Language German
    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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