Competitive ability of five weed species in wheat

Authors

H. Dhammu, Department of Primary Industries and Regional Development, Western AustraliaFollow
Abul Hashem, Department of Primary Industries and Regional Development, Western AustraliaFollow
Catherine P D Borger, Department of Primary Industries and Regional Development, Western AustraliaFollow
Glen Riethmuller, Department of Primary Industries and Regional Development, Western AustraliaFollow
Nerys Wilkins, Department of Primary Industries and Regional Development, Western AustraliaFollow
Pete Gray, Department of Primary Industries and Regional Development, Western Australia

Publication Date

1-2-2020

Series Number

UA00156

Publisher

Grains Research and Development Corporation

City

Perth

Abstract

• Great brome (Bromus diandrus) at a density of 140 plants/m2 reduced wheat grain yield by 43% and economic returns by $205/ha. Barley grass (Hordeum leporinum) at a density of 197 plants/m2 reduced wheat grain yield by 29% and economic returns by $138/ha.
• Doublegee (Rumex hypogaeus syn. Emex australis), sowthistle (Sonchus oleraceus) and wireweed (Polygonum aviculare) were comparatively less competitive and reduced wheat grain yield by up to 10%, 5% and 12%, with corresponding economic losses of $48, $24 and $57/ha, respectively.
• Management of these weed species early in the season is important to minimise grain yield loss.

Disciplines

Agricultural Science | Agronomy and Crop Sciences | Weed Science

Recommended Citation

Dhammu, H, Hashem, A, Borger, C P, Riethmuller, G, Wilkins, N, and Gray, P. (2020), Competitive ability of five weed species in wheat. Grains Research and Development Corporation, Perth. Report UA00156.
https://library.dpird.wa.gov.au/fc_researchrpts/48

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