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Flupropanate – in vitro pasture species susceptibilities

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posted on 2023-05-03, 11:19 authored by Shona LamoureauxShona Lamoureaux, Graeme BourdotGraeme Bourdot, Alasdair NobleAlasdair Noble, Claire Dowsett
Flupropanate, a soil-active herbicide that inhibits lipid bio-synthesis, has become available in New Zealand for the selective control of the stipoid grasses Nassella neesiana and N. trichotoma in pasture. In commercial spray operations and field trials, the selectivity of the herbicide has been extremely variable. As a first step towards identifying pasture species that could be sown following application of the herbicide, the in vitro dose-response of 33 species and cultivars (grasses and dicotyledons) was determined. Ranking the cultivars based on the slopes of linear regressions fitted to their radicle lengths (relative to untreated control) against the logarithm of flupropanate rate, suggested that ryegrass and Nassella spp. are among the most sensitive whilst plantain, chicory, and some legumes including lucerne are relatively tolerant. The rankings from this study will be subjected to validation in a field trial using a subset of the species.

History

Rights statement

© 2015 New Zealand Plant Protection Society (Inc.)

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

NZ Grassland Association Inc.

Journal title

New Zealand Plant Protection

ISSN

1175-9003

Citation

Lamoureaux, S. L., Bourdot, G. W., Noble, A. D. L., & Dowsett, C. A. (2015). Flupropanate – in vitro pasture species susceptibilities. New Zealand Plant Protection, 68, 105–111.

Funder

Environment Canterbury

Contract number

A20247

Job code

293026

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