Control of wilt and root rot incidence in Phaseolus vulgaris L. by some plant volatile compounds

• Autorzy: El-Mougy N S , El-Gamal N.G. , Abdel-Kader M.M.

Warianty tytułu

PL

Zwalczanie wystepowania wiedniecia i zgnilizny korzeni Phaseolus vulgaris L. przez niektore lotne zwiazki roslinne

• Języki publikacji: EN

Abstrakty

EN

Essential oils from four plants, i.e. geranium, rosa, lemon and mint were tested for their activity in vitro and in vivo against Rhizoctonia solani and Fusarium oxysporum f. sp. phaseoli, the cause of root rot and wilt of beans. In vitro, they were found to have an inhibitory effect against the mycelial growth of R. solani and F. oxysporum f. sp. phaseoli. Complete inhibition in fungal growth was observed at a concentration of 4% of each essential oil and Topsin M at 400 ppm as well. In greenhouse the four essential oils were tested as seed coating and/or foliar spray. Results of seed coating at a concentration of 1% clearly demonstrate a good protection of emerged bean seeds against invasion of R. solani and F. oxysporum f. sp. phaseoli compared with the fungicide treatment. A similar trend was observed in a lower extent when the essential oils were applied as bean seeds coating followed by seedlings foliar spray under field conditions. Obvious yield increase as bean green pods, in all treatments, was significantly higher than in the control.

PL

Badano aktywność in vitro i in vivo 4 olejków eterycznych z geranium, róży, cytryny i mięty przeciwko Rhizoctonia solani i Fusarium oxysporum f. sp. phaseoli, sprawcom zgnilizny korzeni oraz więdnięcia roślin fasoli. In vitro związki te inhibowały wzrost grzybni obydwóch patogenów. Całkowitą inhibicję wzrostu grzybni obserwowano stosując każdy z badanych olejków eterycznych w stężeniu 4% oraz fungicyd Topsin M w stężeniu 400 ppm. W doświadczeniu szklarniowym olejki eteryczne stosowano do zaprawiania nasion i/lub jako oprysk nalistny wzeszłych roślin fasoli. Uzyskane wyniki zaprawiania nasion olejkami eterycznymi użytymi w stężeniu 1% jasno wskazują na dobry efekt ochronny przed zakażeniem grzybami R. solani i F. oxysporum f. sp. phaseoli, w porównaniu do zaprawiania fungicydem. Podobny, lecz nieco niższy efekt zaobserwowano w warunkach polowych w wyniku zaprawiania nasion olejkami eterycznymi, a następnie opryskiwania wzeszłych roślin roztworem tych olejków. Plon zielonych strąków fasoli uzyskany we wszystkich kombinacjach doświadczalnych był istotnie wyższy w porównaniu z plonem kombinacji kontrolnej, ale najniższy w przypadku zaprawiania nasion fungicydem.

Słowa kluczowe

EN

disease control; wilt disease; root rot disease; Phaseolus vulgaris; plant compound; volatile compound; Fusarium oxysporum f.sp.phaseoli; Rhizoctonia solani; lemon; geranium; mint; rose oil

• Wydawca: -
• Czasopismo: Journal of Plant Protection Research
• Rocznik: 2007
• Tom: 47
• Numer: 3
• Opis fizyczny: p.255-265,ref.

Twórcy

autor

El-Mougy N S

• National Research Centre, El-Behoos St., 12622, Giza, Egypt

autor

El-Gamal N.G.

autor

Abdel-Kader M.M.

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