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Brahmane, P. R.
- In Vitro Efficacy of Different Botanicals, Bioagents, Chemicals against Xanthomonas axonopodis Pv.citri by Turbidiometrical Method
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Authors
Affiliations
1 Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
1 Department of Plant Pathology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (M.S.), IN
Source
International Journal of Plant Protection, Vol 8, No 2 (2015), Pagination: 241-244Abstract
Citrus canker disease of acid lime caused by Xanthomonas axonopodis pv. citri is an important disease in many parts of MH region. The bacterium infects the twigs, petioles, fruit stalks and fruits. Action of botanicals, bioagents,chemicals against Xac was studied by turbidiometrically at 24hrs.intervals upto 96hrs by spectrophotometer at 620nm. At 96 hours of incubation least bacterial growth(0.232OD) was exhibited in copperoxychloride + streptomycin sulphate (0.2 % + 200ppm) followed with copper-oxychloride + streptomycin sulphate (0.2% + 100ppm) 0.266 OD statistically superior over all treatments. Similar findings are observed after 24h growth in copper oxychloride + streptomycin sulphate (0.2 % + 200ppm) followed with copper-oxychloride +streptomycin sulphate (0.2 % + 100ppm) (0.303, 0.306, respectively. In botanicals and bioagents neem seed kernel extract (5%) was effective in reducing the growth of bacteria with 0.446 OD at 96 h followed by Pseudomonas flourescence 1×108 cell and Bacillus subtilis 1×108 cell with 0.506 and 0.486 OD, respectively.Keywords
Xac, Citrus Canker, Botanicals, Bioagents, Turbidiometrical Method, Spectrophotometer.
References
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- Efficacy of Bioagents and Plant Extract against Alternaria porri Causing Purple Blotch of Onion
Abstract Views :340 |
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Authors
Affiliations
1 Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), IN
1 Department of Plant Pathology, College of Agriculture (V.N.M.A.U.), Latur (M.S.), IN
Source
International Journal of Plant Protection, Vol 8, No 2 (2015), Pagination: 265-269Abstract
The bioagent T. harzarium was found most effective in controlling the pathogen. Lowest disease severity (37.67%) was recorded in the spray treatment of T. harzarium. It was followed by T. viride and P. fluorescens, B. subtilis. Among the plant extract 5 per cent neem seed kernel extract gave maximum control of pathogen i.e. 44.24 per cent over control, followed by Followed by Mentha arvensis, Allium sativum, Zingiber officinale, Vitex negundo. The fungicide Mancozeb was at found at par with extract of NSK and Mentha arvensis.Keywords
Onion, Purple Blotch of Onion, Bioagents, Plant Extract.References
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