eCite Digital Repository

Incidence and pathology of common viruses of nerine in Tasmania

Citation

Limbath, DP and Blanchfield, AL and Wilson, CR, Incidence and pathology of common viruses of nerine in Tasmania, Annals of Applied Biology, 136, (1) pp. 21-25. ISSN 0003-4746 (2000) [Refereed Article]

DOI: doi:10.1111/j.1744-7348.2000.tb00004.x

Abstract

This is the first study of the incidence of common viruses within bulb stocks of nerine in Australia. Five viruses were frequently found within commercial stocks but were never associated with obvious viral symptom expression in the field. This study found cucumber mosaic virus (CMV) infections of Nerine flexuosa, and nerine virus Y (NeVY) infections of N. flexuosa, N. bowdenii and N. fothergilli which we believe to be new host records. Virus incidence varied with virus species, host species, and sample site but did not vary within the same bulb stocks over a 2 yr period. Incidence of the major viruses appeared to correlate with the efficiency of transfer from mother bulb to offsets, suggesting that virus status in Tasmania may be largely determined by the incidence of viruses within original planting material and by subsequent vegetative spread. No effect of the most frequent virus infections was found on the efficiency of flowering, flower quality, and dormant bulb fresh weight in N. flexuosa and N. fothergilli with the exception of a small (16.8%), but economically unimportant decrease in scape length of N. flexuosa co-infected with NeLV and NeVY. It is concluded that current virus infections in nerine in Tasmania pose little commercial significance to the developing cut flower industry, however discovery of NeYSV in one sample of Lycoris aurea warrants monitoring to ensure that spread of this important pathogen does not occur.

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:Ornamentals, Natives, Flowers and Nursery Plants
Author:Limbath, DP (Miss Daphne Limbath)
Author:Blanchfield, AL (Miss Annette Blanchfield)
Author:Wilson, CR (Associate Professor Calum Wilson)
ID Code:18890
Year Published:2000
Web of Science® Times Cited:1
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2000-08-01
Last Modified:2011-09-20
Downloads:0

Repository Staff Only: item control page