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intolerant wheat variety

Catalogue: GRDC Publications
" Goondiwindi GRDC Grains Research Update Day 1 - Tuesday 4 th March Time Topic Speaker (s) 10:00 AM James Clark (Chair Northern Welcome Panel GRDC) 10:10 AM General plenary (Supported by North West Local Land Services) 10:10 AM 10:40 AM.. Overall, both models are acceptable for modelling soil evaporation over a range of soils and seasons provided accurate soil physical properties and starting water states are known... Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)...
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Catalogue: GRDC Publications
Nematodes reduce yields in intolerant wheat cultivars Nematodes reduce the amount of water available for plant growth Nematodes impose early stress that reduces yield potential despite the availability of water and nutrients Maintaining a low nematode population improves crop yields.. Overall, populations increased five times compared to before planting the summer crops, but remained below 250/kg soil (Figure 4)... Data is presented as an average of the added CR and no added CR treatments for this site...
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Catalogue: Ground Cover
Crown rot is a priority wheat disease in the northern grains region... Crown rot infection requires moist soil, and the past few years have caused problems for growers by increasing the disease's prevalence... Crown rot "We spend most of our time trying to minimise crown rot inoculum levels soil water is by far the biggest factor in the impact of this disease on profitability," Dr Simpfendorfer says...
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Catalogue: GRDC Factsheets
Root-lesion nematodes (RLN; Pratylenchus crop plants and cause yield loss... 486 varieties across a wide range of crops have been assessed for resistance to the four main RLN species... Weeds can play an important role in the increase or persistence of nematodes in cropping soils...
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Catalogue: GRDC Updates
Although the trials were not designed to focus on nematodes, a convincing trend was apparent after 2008 that indicated the root lesion nematode Pratylenchus thornei (Pt) was having a frequent and large impact on wheat variety yield... During 2007 & 2008 a common series of 5 bread wheat varieties, 4 barley varieties and 1 durum were evaluated in all 18 trials (NB only 17 yield results are presented as barley varieties were heavily damaged by emus at 1 site in 2008)... 2. Less apparent range in variety Pt tolerance than seen for bread wheat Figure 5 shows the variety yield performance compared to EGA Wylie for all wheat varieties evaluated in both 2008 and 2009...
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Catalogue: GRDC Updates
There are consistent varietal differences in Pt resistance within wheat and chickpea varieties.. Yield losses in chickpeas of up to 20% have also been measured in DAFF QLD trials.. Recent research has shown that in addition to resistant crops, there are consistent and useful levels of difference in resistance within key 'susceptible' crops such as wheat and chickpeas...
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Catalogue: GRDC Updates
During 2007 & 2008 a common series of 5 bread wheat varieties, 4 barley varieties and 1 durum were evaluated in all 18 trials (NB only 17 yield results are presented as barley varieties were heavily damaged by emus at 1 site in 2008)... Ten trials had no Pt detected with 7 sites having Pt present ( Pt were present at 5 of 10 sites in 2007 and 2 of 7 sites in 2008, PreDicta B Pt levels ranged from 1000-7000/kg soil in 2007 and 4000-5000/kg soil in 2008)... 2. Less apparent range in variety Pt tolerance than seen for bread wheat Figure 5 shows the variety yield performance compared to EGA Wylie for all wheat varieties evaluated in both 2008 and 2009...
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Catalogue: Ground Cover
Still time to save Central Queensland from nematodes.. "The other good news is that only five per cent of the paddocks sampled in CQ had RLN populations above the wheat-damage threshold of 2000 per kilogram of soil," Mr Robinson says... Prevention measures "Continuing to grow susceptible varieties of crops such as wheat, barley, chickpeas, mungbeans or soybeans can quickly increase the RLN population to damaging levels and help them spread across paddocks and the region," Mr Robinson says "Replacing these with resistant and tolerant varieties - such as the wheat varieties LongReach Gauntlet , Sunmate and Suntop - and rotating with tolerant crops such as sorghum, maize, sunflowers and cotton for two or more consecutive seasons, will reduce P. thornei populations...
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Catalogue: Ground Cover
Still time to save Central Queensland from nematodes.. "The other good news is that only five per cent of the paddocks sampled in CQ had RLN populations above the wheat-damage threshold of 2000 per kilogram of soil," Mr Robinson says... Prevention measures "Continuing to grow susceptible varieties of crops such as wheat, barley, chickpeas, mungbeans or soybeans can quickly increase the RLN population to damaging levels and help them spread across paddocks and the region," Mr Robinson says "Replacing these with resistant and tolerant varieties - such as the wheat varieties LongReach Gauntlet , Sunmate and Suntop - and rotating with tolerant crops such as sorghum, maize, sunflowers and cotton for two or more consecutive seasons, will reduce P. thornei populations...
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