The Plant Pathology Journal
- 제17권5호
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- Pages.264-270
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- 2001
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- 2093-9280(eISSN)
Control of Late Leaf Spot of Groundnut (Arachis hypogaea) by Extracts from Non-Host Plant Species
- Kishore, G.Krishna (Department of Plant Sciences, University of Hyderabad) ;
- Pande, S. (Natural Resources Management Program, ICRISAT. India) ;
- Rao, J.Narayana (Natural Resources Management Program, ICRISAT. India)
- 발행 : 2001.10.01
초록
The effects of leaf extracts of 14 different non-host plant species on in vitro conidial germination of Phaeoisariopsis personata, the causal organism of late leaf spot(LLS) of groundnut were evaluated. Aqueous and ethanol leaf extracts of Datura metel, Lawsonia inermis and aqueous leaf extracts of Sphaeranthus indicus at 25%(w/v) concentration completely inhibited the conidial germination of P. personata both at 24h and 48h after incubation. Aqueous leaf extracts of Blumea bifoliata, Eucalyptus globules, Ocimum sanctum and Pongamia pinnata, and ethanol leaf extracts of Azadirachta indica and S. indicus inhibited the conidial germination by >90%. Aqueous and ethanol leaf extract of L. inermis and S. indicus were highly inhibitory to conidial germination up to 1% concentration. Aqueous and ethanol leaf extracts of D. metel and ethanol leaf extract of A. indica were highly inhibitory to P. personata even at 0.01% (100 ppm) concentration. Ethanol leaf extract of A. indica up to