บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Influence of volatile plant extracts on storage pathogens of carrots in vitro.

Horberg, H.;

Vaxtskyddsnotiser Year: 1998 Vol: 62 Issue: 4 Pages: 87-89 Ref: 15 ref.

1998

บทคัดย่อ

Influence of volatile plant extracts on storage pathogens of carrots in vitro.

The vapours of the essential oils of caraway (Carum carvi), spearmint (Mentha spicata), thyme (Thymus vulgaris), basil (Ocimum basilicum) and garlic were tested in vitro for antifungal properties against Mycocentrospora acerina, Fibularhizoctonia carotae [Rhizoctonia carotae] and Sclerotinia sclerotiorum, 3 important postharvest pathogens of carrots. The mycelial growth of all 3 carrot pathogens was completely inhibited by the vapours from garlic oil, added in amounts from 10-80 ppm, volume per volume empty containers. Various effects were obtained with basil oil, which was tolerated by M. acerina but not to the same extent by the other 2 fungi. Also, there were different reactions to the vapours from thyme oil, R. carotae being completely inhibited at all doses and exposure times, S. sclerotiorum at doses of 80 ppm or higher and M. acerina at 160 ppm and a long exposure time. Spearmint and caraway had a similar influence on all 3 pathogens. The results also indicated that high dosage levels wer

e more important than exposure time for the fungicidal activity of the plant extracts.