Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii

Brooke A. Edmunds; Mark L. Gleason; Stephen N. Wegulo

doi:10.21273/horttech.13.2.0302

Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii

Brooke A. Edmunds, Mark L. Gleason, Stephen N. Wegulo

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Eighteen cultivars of hosta (Hosta spp.), selected to represent a wide range of size, leaf shape and color, and genetics, were evaluated for reaction to Sclerotium rolfsii var. delphinii in a greenhouse in Ames, Iowa in 2000 and 2001. Bare-root, single-eye plants were planted in 15.2-cm (6-inch) pots in a soil-containing (2000) and soilless (2001) mix and grown in a greenhouse for 3 months. Plants were then inoculated by placing a carrot disk infested with mycelium of S. rolfsii at the base of the plant. Disease severity was assessed weekly for 6 weeks as percent symptomatic petioles. Disease development varied significantly (P < 0.05) among cultivars. Overall, 'Lemon Lime', 'Munchkin', 'Nakaiana', 'Platinum Tiara', and 'Tardiflora' had the most severe symptoms and 'Halcyon' showed the least disease.

Original language	English (US)
Pages (from-to)	302-305
Number of pages	4
Journal	HortTechnology
Volume	13
Issue number	2
DOIs	https://doi.org/10.21273/horttech.13.2.0302
State	Published - 2003
Externally published	Yes

Keywords

Herbaceous perennials
Soilborne diseases

ASJC Scopus subject areas

Horticulture

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10.21273/horttech.13.2.0302

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title = "Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii",

abstract = "Eighteen cultivars of hosta (Hosta spp.), selected to represent a wide range of size, leaf shape and color, and genetics, were evaluated for reaction to Sclerotium rolfsii var. delphinii in a greenhouse in Ames, Iowa in 2000 and 2001. Bare-root, single-eye plants were planted in 15.2-cm (6-inch) pots in a soil-containing (2000) and soilless (2001) mix and grown in a greenhouse for 3 months. Plants were then inoculated by placing a carrot disk infested with mycelium of S. rolfsii at the base of the plant. Disease severity was assessed weekly for 6 weeks as percent symptomatic petioles. Disease development varied significantly (P < 0.05) among cultivars. Overall, 'Lemon Lime', 'Munchkin', 'Nakaiana', 'Platinum Tiara', and 'Tardiflora' had the most severe symptoms and 'Halcyon' showed the least disease.",

keywords = "Herbaceous perennials, Soilborne diseases",

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language = "English (US)",

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AU - Edmunds, Brooke A.

AU - Gleason, Mark L.

AU - Wegulo, Stephen N.

PY - 2003

Y1 - 2003

N2 - Eighteen cultivars of hosta (Hosta spp.), selected to represent a wide range of size, leaf shape and color, and genetics, were evaluated for reaction to Sclerotium rolfsii var. delphinii in a greenhouse in Ames, Iowa in 2000 and 2001. Bare-root, single-eye plants were planted in 15.2-cm (6-inch) pots in a soil-containing (2000) and soilless (2001) mix and grown in a greenhouse for 3 months. Plants were then inoculated by placing a carrot disk infested with mycelium of S. rolfsii at the base of the plant. Disease severity was assessed weekly for 6 weeks as percent symptomatic petioles. Disease development varied significantly (P < 0.05) among cultivars. Overall, 'Lemon Lime', 'Munchkin', 'Nakaiana', 'Platinum Tiara', and 'Tardiflora' had the most severe symptoms and 'Halcyon' showed the least disease.

AB - Eighteen cultivars of hosta (Hosta spp.), selected to represent a wide range of size, leaf shape and color, and genetics, were evaluated for reaction to Sclerotium rolfsii var. delphinii in a greenhouse in Ames, Iowa in 2000 and 2001. Bare-root, single-eye plants were planted in 15.2-cm (6-inch) pots in a soil-containing (2000) and soilless (2001) mix and grown in a greenhouse for 3 months. Plants were then inoculated by placing a carrot disk infested with mycelium of S. rolfsii at the base of the plant. Disease severity was assessed weekly for 6 weeks as percent symptomatic petioles. Disease development varied significantly (P < 0.05) among cultivars. Overall, 'Lemon Lime', 'Munchkin', 'Nakaiana', 'Platinum Tiara', and 'Tardiflora' had the most severe symptoms and 'Halcyon' showed the least disease.

KW - Herbaceous perennials

KW - Soilborne diseases

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Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii

Abstract

Keywords

ASJC Scopus subject areas

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