The effect of plant growth regulators on the incidence and severity of potato diseases

• Autorzy: Cwalina-Ambroziak B. , Glosek-Sobieraj M. , Kowalska E.

Warianty tytułu

PL

Wpływ regulatorów wzrostu na nasilenie chorób ziemniaka

• Języki publikacji: EN

Abstrakty

EN

Four potato cultivars were grown: Volumia, Irga, Satina and Sylvana. Potato plants were sprayed three times with the growth biostimulator Asahi SL and growth regulators Bio-Algeen S-90 and Kelpak SL. During the growing season, the severity of late blight and early blight was evaluated. After five-month storage, the incidence of common scab, black scurf, soft rot, late blight and dry rot was determined on tubers. Fungi were isolated from potato tubers and were cultured on PDA medium. The severity of late blight was reduced in the treatments with growth regulators Bio-Algeen S-90 and Kelpak SL, and the incidence of early blight was reduced in the above treatments and in that with the biostimulator Asahi SL. Satina was the healthiest cultivar. Weaker symptoms of late blight and dry rot were observed on potato tubers harvested from plants treated with the analyzed growth regulators and biostimulator. Colletotrichum coccodes was the predominant pathogen colonizing potato tubers.

PL

Uprawiano 4 odmiany ziemniaka: Volumia, Irga, Satina i Sylvana. Rośliny opryskiwano trzykrotnie biostymulatorem wzrostu Asahi SL i regulatorem wzrostu Bio-Algeen S-90 i Kelpak SL. Podczas okresu wegetacji szacowano nasilenie zarazy ziemniaka i alternariozy. Po 5-miesięcznym przechowywaniu oceniano nasilenie parcha zwykłego, ospowatości bulw, mokrej zgnilizny, zarazy ziemniaka i suchej zgnilizny. Z bulw izolowano grzyby, a ich hodowlę prowadzono na podłożu PDA. Stwierdzono ograniczenie nasilenia zarazy ziemniaka na roślinach w obiektach doświadczenia ze stosowanym regulatorem wzrostu Bio-Algeen S-90 i Kelpak SL oraz ograniczenie alternariozy w wymienionych obiektach i dodatkowo w obiekcie ze stymulatorem wzrostu. Odmiana Satina okazała się najzdrowsza. Na bulwach pochodzących z poletek ze stosowanymi regulatorami wzrostu i stymulatorem Asahi SL zaobserwowano redukcję nasilenia objawów zarazy ziemniaka i suchej zgnilizny bulw. Wśród patogenów zasiedlających bulwy dominującym był gatunek Colletotrichum coccodes.

• Wydawca: -
• Czasopismo: Polish Journal of Natural Sciences
• Rocznik: 2015
• Tom: 30
• Numer: 1
• Opis fizyczny: p.5-20,fig.,ref.

Twórcy

autor

Cwalina-Ambroziak B.

• Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Prwochenskiego 17, 10-720 Olsztyn, Poland

autor

Glosek-Sobieraj M.

• Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland

autor

Kowalska E.

• Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland

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