Physiological and pathological aspects of some new isolates ofColletotrichum falcatumcausing red rot disease inSaccharumspp. complex
| Autor: | D. N. Shukla, S. K. Vishwakarma, M. L. Sharma, Atul Kumar Singh, Ajay Kumar, Y. P. Bharti |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Acta Phytopathologica et Entomologica Hungarica. 47:35-50 |
| ISSN: | 1588-2691 0238-1249 |
| DOI: | 10.1556/aphyt.47.2012.1.4 |
| Popis: | The paper deals with morphological and physiological variability of Colletotrichum falcatum Went on different temperature, pH, medium, nitrogen sources, carbon sources and also first time reporting of the two National Pathotypes from North East Zone of Uttar Pradesh, India. Thirty-four isolates were isolated from infected samples of different sugarcane varieties during survey and maintained on Oat Meal Agar (OMA) slants as well as on the Petri dishes at 30±1 °C. These isolates showed the variability in their optimum radial growth pattern. The optimum radial growth of all isolates was recorded at 8, 10 and 12 days. Six isolates exhibited maximum radial growth (90 mm diam) in 8 days, while the other 10 isolates attained same growth in 10 days. Remaining 14 isolates took 12 days to attain same growth. Pathogenecity of 34, isolates has been tested on 12 host differentials of sugarcane genotypes only SES594 was found resistant and others showed the variable response, while highly susceptible reaction to be fou... |
| Databáze: | OpenAIRE |
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