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crop seed

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Catalogue: GRDC Updates (West)
KEYMESSAGES Using glyphosate as an inter-row annual ryegrass control results in faster development of ryegrass resistance than when glyphosate is applied annually as a pre-sow knockdown... Resistance may occur faster than this model suggests... It is clear that many WA farmers are unknowingly introducing weed seed and herbicide resistance into their paddocks during the crop seeding process...
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Catalogue: GRDC Media
Caution urged for weather damaged grain.. Grain growers experiencing adverse weather this harvest are urged to ensure that, where possible, the grain they retain for 2013 crop seed has a sufficiently high 'falling number' value... Grains Research and Development Corporation (GRDC) western grower services manager Darren Hughes encouraged growers to pay particular attention to which grain they kept for crop seed, saying weather damaged grain was more susceptible to poor germination, low vigour and degradation during storage and handling...
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Catalogue: GRDC Media
Grain growers experiencing adverse weather this harvest are urged to ensure that, where possible, the grain they retain for 2013 crop seed has a sufficiently high 'falling number' value... Grains Research and Development Corporation (GRDC) western grower services manager Darren Hughes encouraged growers to pay particular attention to which grain they kept for crop seed, saying weather damaged grain was more susceptible to poor germination, low vigour and degradation during storage and handling... "Some Western Australian growers forced to retain weather damaged seed from the previous harvest reported that these crops had poor vigour during the difficult start to the growing season in 2012," he said...
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Catalogue: GRDC Publications
The benefits improve crop health and crop competitive ability against weeds and the effectiveness of pre-emergent herbicides... When used as a post-emergent product, little of the herbicide gets to the roots and the control of established weeds is often very poor... benefits arise when the weed is prevented from setting seed as there are no increases to the seedbank and, as a consequence, fewer weeds in the future...
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Catalogue: GRDC Final Reports
For weeds such as ryegrass, wild oats, and wild radish, this weed seed can be herbicide resistant and it is possible for growers to unwittingly introduce resistance to crop fields... In 2006 a field experiment was established to evaluate the evolution of resistance to diclofop-methyl... Clethodim is widely used to control otherwise resistant ryegrass clethodim resistance is increasing in ryegrass populations (Owen et al. 2007)...
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Catalogue: GRDC Updates
The important factors in getting pre-emergent herbicide to work effectively while minimising crop damage are: to understand the position of the weed seeds in the soil; the soil type (particularly amount of organic matter and crop residue on the surface); the solubility of the herbicide; and its ability to be bound by the soil... Weed seeds will most likely absorb herbicide if the herbicide is at or below the seed in the soil profile... Triallate needs to be situated at or above the weed seed to be effective...
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Catalogue: GRDC Media
Pre-emergent herbicides typically have more variables that can affect efficacy than post-emergent chemistries and if not applied strategically, can result in poor crop emergence... Knife-point and press wheel seeders have been widely adopted and more recently, disc seeders have also been utilised... Research associate from the University of Adelaide's School of Agriculture, Food and Wine, Dr Sam Kleemann told advisors and growers attending the recent GRDC Grain Research Updates in Coonabarabran and Warren that the physical separation of crop seed and herbicide was imperative if crop damage was to be avoided...
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Catalogue: GRDC Media
Pre-emergent herbicides typically have more variables that can affect efficacy than post-emergent chemistries and if not applied strategically, can result in poor crop emergence... Knife-point and press wheel seeders have been widely adopted and more recently, disc seeders have also been utilised... Research associate from the University of Adelaide's School of Agriculture, Food and Wine, Dr Sam Kleemann told advisors and growers attending the recent GRDC Grain Research Updates in Coonabarabran and Warren that the physical separation of crop seed and herbicide was imperative if crop damage was to be avoided...
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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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Catalogue: GRDC Media
Precision seeding technology shows promise.. DAFWA researcher Martin Harries at a precision seeding trial site at Ogilvie in August, 2015, showing no significant difference between the biomass of canola seeded at 2.5kgha, left, and 0.5kg/ha, right... DAFWA researcher Martin Harries said precision planters were usually used for coarse grains such as corn or soybeans or in horticulture, but previous WA and Canadian studies had shown that yields for canola and lupins could also be improved when plants were sown more uniformly using this technology...
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