Singh, H. and Ravikumar, M.C. and Garampalli, H.R. (2013) Enhancement of downy mildew of sorghum by some organic soil amendments: a caution to organic farmers. Archives Of Phytopathology And Plant Protection , 46 (9). pp. 1030-1035.
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Abstract
Matured botanical compost of Croton sparsiflorus and Azadirachta indica were evaluated for promotion of sorghum downy mildew at the rate of 0.5% (w/w). Exceptionally high promotional rates of 26.9% (C. sparsiflorus) and 30.1% (A. indica) were observed as compared to negative control (8.8%). The enhancement of disease was higher than that obtained by the supply of recommended dose of urea (13.3%). As the pathogen (Peronosclerospora sorghi) is a biotroph and cannot multiply by using organics as nutrient source in the absence of a host, the mechanism of disease enhancement is inferred to be through stimulation of oospore germination by organic compounds
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | downy mildew, sorghum, organic, soil amendment, disease enhancement. |
| Author Affiliation: | Department of Studies in Botany, University of Mysore, Mysore, India |
| Subjects: | Plant Production Soil Science and Microbiology |
| Divisions: | Sorghum |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 04 Feb 2013 03:48 |
| Last Modified: | 01 Aug 2013 05:47 |
| Official URL: | http://dx.doi.org/10.1080/03235408.2012.756191 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9508 |
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