2014 Weed Science Trials at Graham Centre Field Site
001CCW2014 Selection of Crop Cultivars for Weed Suppression
This trial has been sown for 3 years at 2 locations, Wagga Wagga and Condobolin. The objective is to
evaluate a variety of common production crop cultivars in respect to their ability to reduce or suppress
in-crop weeds as well as post harvest and summer weeds emergence.
002WSCC2014 Weed Suppressive Canolas
This trial is an extension of past research work evaluating various Brassica napus cultivars and their
ability to suppress weeds. Crop competition and potential allelopathy might reduce in-crop weeds and
also affect post harvest and summer weed emergence. The trial is at two locations, Wagga Wagga and
Condobolin.
003WSBRW2014 Influence of Rotational Sequences on Soil Weed Seed Bank Reduction
This trial is a long term 5 year study using standard southern New South Wales rotations of crops and
pastures. It is evaluating their potential for reducing the weed seed bank over time and altering soil
microbial communities in the crop/weed rhizosphere. The trial will also be started at Condobolin in
2015.
004WSWW2014 Weed Suppressive Wheats
This trial is an extension of long term research into wheat cultivars that may reduce weed populations
through several mechanisms including early plant vigour, plant architectural traits and potential
allelopathic effects. Through cooperation with CSIRO and commercial wheat breeders we are testing
a broad spectrum of wheat cultivars representing the major genetic families in Australia including
some heirloom varieties. The trial is at two locations, Wagga Wagga and Condobolin.
005CCW2013 Crop Cultivars Selection for Weed Suppression
Barley has been sown into last year’s Crop Cultivar trial to evaluate the long term effects on weed
populations of various stubble residues from crops planted in 2013.
(Prof) Leslie Weston
(Dr) William B. Brown
Research Professor
Plant Biology and Weed Science
Charles Sturt University
Senior Research Fellow
Lecturer in Precision Agriculture
Charles Sturt University
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