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 journalArticle

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 languageEnglish (US)
Pages (from-to)302-305
Number of pages4
JournalHortTechnology
Volume13
Issue number2
StatePublished - Apr 1 2003

Fingerprint

Hosta
Athelia rolfsii
cultivar
cultivars
soilless media
greenhouses
disease severity
platinum
Daucus carota
Mycelium
lemons
petioles
Platinum
carrots
signs and symptoms (plants)
mycelium
lime
Soil
Color
eyes

Keywords

  • Herbaceous perennials
  • Soilborne diseases

ASJC Scopus subject areas

  • Horticulture

Cite this

Edmunds, B. A., Gleason, M. L., & Wegulo, S. N. (2003). Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii. HortTechnology, 13(2), 302-305.

Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii. / Edmunds, Brooke A.; Gleason, Mark L.; Wegulo, Stephen N.

In: HortTechnology, Vol. 13, No. 2, 01.04.2003, p. 302-305.

Research output: Contribution to journalArticle

Edmunds, BA, Gleason, ML & Wegulo, SN 2003, 'Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii', HortTechnology, vol. 13, no. 2, pp. 302-305.
Edmunds, Brooke A. ; Gleason, Mark L. ; Wegulo, Stephen N. / Resistance of hosta cultivars to petiole rot caused by Sclerotium rolfsii var. delphinii. In: HortTechnology. 2003 ; Vol. 13, No. 2. pp. 302-305.
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