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Detecting resistance in imported perennial ryegrass seed lots

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conference contribution
posted on 2023-09-20, 20:28 authored by Christopher E. BuddenhagenChristopher E. Buddenhagen

Key points

• This work studied the level of herbicide resistance in imported ryegrass seed lots to understand the risks associated with this pathway for introducing herbicide resistance onto New Zealand farms.

• None of the ryegrass had resistance to glyphosate.

• Twenty of the 28 Lolium perenne seed lines tested from overseas (mostly turfs) had some resistance to Group 1 and 2 herbicides. Eight had no detectable resistance to Group 1 and 2 herbicides.

• It is safer to assume that resistance is present in any imported seed line.

Funding

SSIF Programmes AgResearch

Ministry of Business, Innovation and Employment

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History

Rights statement

This is an open-access output. It may be used, distributed or reproduced in any medium, provided the original author and source are credited.

Publication date

2022-11-23

Project number

  • PRJ0364147

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Foundation for Arable Research

Conference name

FAR CROPS Annual Expo 2022

Conference location

Chertsey, Canterbury, New Zealand

Conference start date

2022-11-23

Conference end date

2022-11-23

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    Keywords

    Herbicide resistanceSeed multiplication

    Licence

    CC BY 4.0

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