Root rot of onion caused byPythium irregulare andPythium coloratum

Autor:	J. W. Lorbeer, P. C. Vincelli
Rok vydání:	1990
Předmět:	Wet weather biology Liliaceae Inoculation Veterinary (miscellaneous) Pythium irregulare fungi food and beverages biology.organism_classification Applied Microbiology and Biotechnology Microbiology Agronomy Pythium coloratum Root rot Phycomycetes Agronomy and Crop Science
Zdroj:	Mycopathologia. 111:67-72
ISSN:	1573-0832 0301-486X
DOI:	10.1007/bf02277307
Popis:	Pythium irregulare andPythium coloratum were isolated consistently from roots of onion plants exhibiting root rot and associated foliar symptoms in fields located in Organe County, NY.P. coloratum predominated following extremely wet weather in 1984 and 1986, whileP. irregulare was prevalent following moderately wet weather in 1985. Both species produced root rot symptoms similar to field symptoms when 12 week old onion plants (cv Downing Yellow Globe) were inoculated and incubated in a growth chamber at 14°C for 10 days. This is the first report ofP. irregulare andP. coloratum as causes of root rot of onion.
Databáze:	OpenAIRE
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