บทคัดย่องานวิจัย

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Natural plant extracts - control of fungal pathogens of potato.

Bang, U.;

36:e Svenska Vaxtskyddskonferensen: Jordbruk - Skadedjur, vaxtsjukdomar och ogras. Year: 1995 Pages: 371-381 Ref: 11 ref.

1995

บทคัดย่อ

Natural plant extracts - control of fungal pathogens of potato.

 

The antimycotic and sprout-inhibiting effects of various essential oils were studied during 1993-94. Several essential oils were shown to be fungicidal in in vitro experiments on artificial media. Autumn treatment of naturally infected potato cv. Bintje tubers for 2 weeks at 10 deg C using the vapour phase of garlic (Allium sativa [A. sativum]), caraway (Carum carvi), thyme (Thymus vulgaris) or peppermint (Mentha piperita) essential oils reduced infection by Helminthosporium solani and Rhizoctonia solani, as detected in a tuber plug test performed in spring. The sprouting ability of treated tubers was negatively influenced by garlic and peppermint (but not caraway or thyme) essential oils. In similar, small-scale experiments, performed in Feb., however, the latter essential oils completely inhibited tuber sprouting. Rotting, caused by artificially inoculating Bintje tubers with Phoma foveata [Phoma exigua var. foveata], was significantly reduced when tubers were exposed to the vapour phase of ga

rlic, basil (Ocimum basilicum), peppermint or thyme essential oils for 13 days or more at 10 deg C.