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Catalogue: GRDC Media
New research has revealed that hybrid canola varieties are potentially a profitable break crop option for Western Australia's low rainfall zones and that growers in these areas can make savings by delaying decisions about nitrogen applications for these varieties in particular... DAFWA senior research officer Mark Seymour said the results, presented at this year's Regional Crop Update at Salmon Gums, indicated that hybrid RR lines could provide opportunities for growers in the region to use low rates of nitrogen at seeding and then add more nitrogen, as needed, to reach optimal yield... Mr Seymour said the trial highlighted the importance of assessing the nitrogen status of the crop and ensuring that canola was not over-fertilised in low rainfall areas, as the reduction of oil content levels with increased nitrogen could also lead to big discounts...
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Catalogue: GRDC Final Reports
Chickpea itself has no close wild relatives within its species, Cicer arietinum , and earlier attempts to cross chickpea with distant relatives using conventional hybridisation methods were unsuccessful... We conclude that barriers to wide crosses in chickpea using conventional methods occur after fertilisation, leading to abortion of the hybrid seed before maturity... The success of the project in achieving confirmed hybrids of chickpea X C. bijugum in tissue culture, which have never been achieved using conventional methods, has created much interest among chickpea breeders and researchers and we have been encouraged to continue the research...
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Catalogue: GRDC Final Reports
The new knowledge and protocols developed in this project are already showing their value and benefiting research outcomes of legume improvement programs in Australia... It is recommended that all accessions of this species are evaluated for desirable traits in Australia... The objective of the project was to develop protocols, based on tissue culture technology, to access desirable genes in chickpea's wild relatives...
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Catalogue: Broadacre Field Crops DAFF QLD
As moisture conditions become more limiting, the earlier-maturing hybrids will have greater yield reliability... Slower-maturing hybrids will generally give higher yields than quick-maturing hybrids when moisture and nutrients are not limiting... There are some hybrids that produce poor quantities of pollen (and are more susceptible to the disease) if flowering during cool conditions...
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Catalogue: Broadacre Field Crops DAFF QLD
As moisture conditions become more limiting, the earlier-maturing hybrids will have greater yield reliability... Slower-maturing hybrids will generally give higher yields than quick-maturing hybrids when moisture and nutrients are not limiting... There are some hybrids that produce poor quantities of pollen (and are more susceptible to the disease) if flowering during cool conditions...
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Catalogue: Broadacre Field Crops DAFF QLD
As moisture conditions become more limiting, the earlier-maturing hybrids will have greater yield reliability... Slower-maturing hybrids will generally give higher yields than quick-maturing hybrids when moisture and nutrients are not limiting... There are some hybrids that produce poor quantities of pollen (and are more susceptible to the disease) if flowering during cool conditions...
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Catalogue: GRDC 2014 Research Summaries
Midge resistance was first incorporated into lines in the mid 1980's and today almost 100% of the hybrids commercially available in the marketplace have some level of midge resistance... The test hybrids are then given a resistance rating (a measurement of the amount of grain lost, per visiting female midge per day) from 1 (nil resistance) to 8+ (current maximum resistance commercially available)... The MR ratings, along with other crop information (e.g. crop densities, midge numbers, current market value of grain and cost of chemical control); can then be used in the online Economic Threshold Calculator to assist growers in managing their crops ...
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Catalogue: GRDC Updates (North)
Corn developmental stages used in this article are based upon the Iowa State Publication "How a Corn Plant Develops" (Ritchie et al., 1997)... The paper provides an illustration of the application of these tools to example farms and farming systems on the Atherton Tableland... of application improves penetration into the canopy - 8 km/hr is the maximum..
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Catalogue: GRDC Updates (South)
Corn developmental stages used in this article are based upon the Iowa State Publication "How a Corn Plant Develops" (Ritchie et al., 1997)... The paper provides an illustration of the application of these tools to example farms and farming systems on the Atherton Tableland... of application improves penetration into the canopy - 8 km/hr is the maximum..
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Catalogue: Broadacre Field Crops DAFF QLD
Honeydew oozing on a grain sorghum head caused by Claviceps africana (ergot)... Crops at greatest risk are: forage sorghums heads on ratoon crops flowering late in the season tillers on late-flowering plants crops in which pollination has been affected by a cold snap before or at flowering... To minimise the risk of ergot contamination, growers should: sow at recommended times ensure even flowering (use press wheels, high-germination seed, accurate seed depth control; good crop nutrition, wide row spacing (90-100 cm), especially with hybrids that tiller heavily, and consider pre-harvest kill-off of tillers using glyphosate herbicide) graze forage sorghum heavily to delay flowering until after grain sorghum has flowered...
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