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nematode coring

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
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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