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Virus incidence in Australian hop (Humulus lupulus L.) gardens and cultivar differences in susceptibility to infection

Citation

Pethybridge, SJ and Wilson, CR and Sherriff, LJ and Leggett, GW and Murno, D, Virus incidence in Australian hop (Humulus lupulus L.) gardens and cultivar differences in susceptibility to infection, Australian Journal of Agricultural Research, 51, (6) pp. 685-689. ISSN 0004-9409 (2000) [Refereed Article]

DOI: doi:10.1071/AR99154

Abstract

Incidence of hop latent virus (HpLV), hop mosaic virus (HpMV), and Prunus necrotic ringspot virus [PNRSV (apple, A, and intermediate, I, serotypes)] was assessed in 6 Australian-bred hop cultivars in Tasmania and Victoria, Australia. At Gunns Plains, Tasmania, virus incidence in 5 gardens of cv. 'Victoria', initially established with elite material and 7-9 years old, was 89-98% for HpLV, 72-96% for HpMV, and 85-100% for PNRSV (A and I). Virus incidence in 13 'Pride of Ringwood' gardens, 10-19 years old and initially established from material of unknown virus status, was 0-49% for HpLV, 0-69% for HpMV, and 0-77% for PNRSV (A and I). In an 8-year-old trial, in which 3/4 cultivars were planted with elite material, incidence of HpLV in 'Victoria' (47%) was significantly (P < 0.001) greater than in 'Opal' (8%). Incidence of HpMV in 'Victoria' (52%) was significantly (P < 0.001) higher than in 'T11' (42%), which in turn was higher than in 'Opal' (24%). Incidence of PNRSV (A and I) in 'Victoria' (98%) was significantly higher than in 'T11' (58%), which was higher than 'Opal' (31%). Results suggested that 'Victoria' was more susceptible to infection by all 3 viruses than traditionally grown cultivars and recently released or experimental cultivars. Planting with elite material and roguing of infected plants has been ineffective as a virus control strategy with this cultivar.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Horticultural Production
Research Field:Horticultural Crop Protection (Pests, Diseases and Weeds)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Horticultural Crops not elsewhere classified
Author:Pethybridge, SJ (Dr Sarah Pethybridge)
Author:Wilson, CR (Associate Professor Calum Wilson)
ID Code:18888
Year Published:2000
Web of Science® Times Cited:16
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2000-08-01
Last Modified:2011-09-23
Downloads:0

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