EVALUATION OF PLANT AQUEOUS EXTRACTS FOR THEIR ANTIFUNGAL ACTIVITY AGAINST CERTAIN PHYTOPATHOGENIC FUNGI | ||||
| Journal of Plant Production | ||||
| Article 13, Volume 28, Issue 7, July 2003, Page 5405-5414 PDF (1.28 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.252511 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Wafaa M. Elkaffash,; O. A. AI-Menoufi | ||||
| Department of Plant Pathology, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt | ||||
| Abstract | ||||
| Aqueous extracts from different organs of 36 plant species were evaluated for their antifungal activity against Fusarium oxysporum f. sp. niveum, Rhizoctonia so/ani. and Botrytis cinerea. The extracts of eight plants. clove. garlic. jojoba. ucuance, onion. pepper, rosselle and thyme highly suppressed the mycelial growth Of the three tested fungi as well as the spore germination of B. cinerea. The reduction in mycelial growth ranged from 88 to 100%. Results revealed that mycelial growth was completely inhibited when tested fungi were exposed to garlic extract for 15 min or clove extract for 2 hr. Emergence of watermelon seedlings in soil infested with F. oxysp < /em>orum f . s p. n iveum was 1 00% when the soil was treated with clove or garlic extract. The same results were obtained when tomato seedlings grew in soil infested with R. so/ani. Scanning electron microscopy of R. so/ani mycelia treated with garlic. liQuarice. rosselle and thyme extracts showed collapse of the hyphae and shriveling of their cell walls. | ||||
| Keywords | ||||
| Biocontrol. Tomato damping off. Watermelon wilt. Clove. Garlic | ||||
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