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weed research

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Catalogue: GRDC Publications
While a cereal crop can shade broadleaf weeds, the weeds will still move their leaves to get the maximum benefit from any sunlight reaching them through the crop canopy... Crops sown in an east-west orientation are less successful in suppressing the growth of broadleaf weeds compared with grass weeds... Crop orientation will have a greater impact on farms in southern Australia, compared to northern Australia...
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Catalogue: GRDC Publications
The trend for increasing herbicide resistance in Australian cropping systems is likely to continue, at least in the near future... The majority of plants in a wild weed population will be susceptible to herbicides effective on that species... Overall, 25 per cent of the samples that were resistant to fenoxaprop and clodinafop also had resistance to flamprop methyl which is in Group Z (Cook 2011)...
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Catalogue: GRDC Publications
H. marinum is widely referred to as sea barley grass around the world, and H. hystrixis known as Mediterranean barley grass... Conditions that favour germination and establishment The seed of common sowthistle can germinate at temperatures in the range 5 C to 35 C. Germination is ultimately determined by moisture availability, as a moist environment is preferred... There is a high proportion of seedling emergence from shallow seed sources, whereas more deeply buried seeds remain dormant and long-lived with a half life estimated at 10 years...
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