First report of southern blight of common barley in Puerto Rico

Autor:	Joseph Esnard, Paul R. Hepperly
Rok vydání:	1995
Předmět:	Athelia rolfsii Chlorosis biology food and beverages Wilting Plant Science Fungi imperfecti Horticulture biology.organism_classification Agronomy Blight Poaceae Hordeum vulgare Agronomy and Crop Science Mycelium
Zdroj:	European Journal of Plant Pathology. 101:497-501
ISSN:	1573-8469 0929-1873
DOI:	10.1007/bf01874473
Popis:	In 1990–91, 96% of the test plants in a barley (Hordeum vulgare L.) winter nursery in Puerto Rico was lost toSclerotium rolfsii. Small necrotic lesions (1–3 mm long) developed at the base of the stem, followed by wilting and general chlorosis as the lesions progressed and eventually girdled the base of the stem. Sclerotia then developed on the plants at the stem base. Two morphologically different strains ofS. rolfsii that were mycelial incompatible were isolated. This is the first report of a destructive blight due toS. rolfsii on field barley in the Caribbean. The apparent rate of disease increase (r) was estimated to be 12.2% per day using the logistic model, with an initial disease incidence of 0.042% (R2=0.89, p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b56eb2a87ab79334734f24643232f8f3 https://doi.org/10.1007/bf01874473 Zobrazit plný text záznamu Full text from SpringerLink