Seed fractionation as a phytosanitary control measure for Pea seed-borne mosaic virus infection of field pea seed-stocks

Authors

Benjamin S. Congdon, University of Western AustraliaFollow
Brenda A. Coutts, Department of Agriculture and Food WAFollow
Michael Renton, University of Western AustraliaFollow
J A G van Leur, New South Wales Department of Primary Industries
Roger A C Jones, Department of Agriculture and Food WAFollow

Document Type

Article

Publication Date

12-7-2016

Journal Title

European Journal of Plant Pathology

ISSN

Print: 0929-1873 Electronic: 1573-8469

Keywords

Pea seed-borne mosaic virus, Field pea, Seed fractionation, Phytosanitary control, Seed transmission

Disciplines

Agronomy and Crop Sciences | Biosecurity

Abstract

In field pea (Pisum sativum) crops worldwide, sowing seed with minimal Pea seed-borne mosaic virus (PSbMV) infection is crucial to manage its spread and the seed yield and quality losses it causes. The possibility of using seed fractionation to help decrease PSbMV infection in infected seed-stocks used for sowing crops was investigated. When six PSbMV-infected seed-lots of Australian field pea cvs Kaspa or PBA Twilight were passed through sieves of different mesh sizes to obtain different size fractions, PSbMV seed transmission rates to seedlings were significantly higher in the <6.5 mm than the >6.5 mm fractions. Passing pea seed-lots through a 6.5 mm sieve can be used to: (i) provide a useful indicator warning of likely high seed infection levels, and (ii) contribute towards decreasing PSbMV infection levels below the % seed transmission risk threshold for sowing.

Recommended Citation

Congdon, B S, Coutts, B A, Renton, M, van Leur, J A, and Jones, R A. (2016), Seed fractionation as a phytosanitary control measure for Pea seed-borne mosaic virus infection of field pea seed-stocks. European Journal of Plant Pathology, 148, 733-737.
https://library.dpird.wa.gov.au/bs_research/68