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moisture stress

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Catalogue: Broadacre Field Crops DAFF QLD
Photograph of Cotton aphids showing variations in colour - some yellow and some black.. A wide range of aphid species can affect field crops... Often occurring in colonies, aphids suck on sap, causing loss of vigour, and in some cases yellowing, stunting or distortion of plant parts...
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Catalogue: Broadacre Field Crops DAFF QLD
Photograph of Cotton aphids showing variations in colour - some yellow and some black.. A wide range of aphid species can affect field crops... Often occurring in colonies, aphids suck on sap, causing loss of vigour, and in some cases yellowing, stunting or distortion of plant parts...
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Catalogue: Broadacre Field Crops DAFF QLD
Photograph of Cotton aphids showing variations in colour - some yellow and some black.. A wide range of aphid species can affect field crops... Often occurring in colonies, aphids suck on sap, causing loss of vigour, and in some cases yellowing, stunting or distortion of plant parts...
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Catalogue: GRDC Updates
Adapting our current practices and varieties to focus on managing the three key phases of crown rot (survival, infection and yield loss) will determine the impact this disease has on your crops in the future... Yield achievement in the presence of crown rot (Figure 2) is perhaps a more useful means of comparing varieties rather than the extent of yield loss associated with infection (Figure 1) as a variety with the smallest yield loss may not always be the highest yield achiever... The agronomy of durum production has not been extensively evaluated in such a western environment due to limited commercial production in the region primarily based around concerns over the high susceptibility of this crop to crown rot...
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Catalogue: GRDC Media
Mr Clark says growers could face production falls of 20 per cent if glyphosate resistance reaches a level where tillage becomes a regular part of the farming system once more... "GRDC has funded a major new five-year research project on integrated weed management (IWM) for northern region weeds to follow-on from the current projects on herbicide resistance, fleabane control and delivering applied solutions in central Queensland," Mr Clark said... An excellent time to monitor for glyphosate resistance is after plants have been treated with glyphosate under ideal conditions as this is a time when a large majority of susceptible plants will die and any resistant individuals are more obvious, he said...
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Catalogue: Ground Cover
The race to get the winter wheat in and up is an increasing challenge for Western Australian grower Nick Gillett, who farms 9000 hectares at Bencubbin, north-east of Perth... Farm owners: Nick and Tryphena Gillett Location: Bencubbin, Western Australia Farm size: 9000 hectares of arable land Farm manager: Nick Gillett Rainfall: 310 millimetres (growing season: 225mm) Soil type: 50 per cent mallee; 30 per cent heavy clay; 20 per cent sand and gravel Soil pH: from 4.5 to 8.5 (continuous liming program to reach a minimum topsoil pH of 6) Crops: 5000ha wheat, 2000ha barley and 2000ha of fallow, canola and pasture.. Nick says dry conditions at season's end (late spring) can now be pretty much guaranteed, so for the farm to be profitable and sustainable, timely crop emergence under marginal conditions needs to be improved...
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Catalogue: Ground Cover
Farm owners: Nick and Tryphena Gillett Location: Bencubbin, Western Australia Farm size: 9000 hectares of arable land Farm manager: Nick Gillett Rainfall: 310 millimetres (growing season: 225mm) Soil type: 50 per cent mallee; 30 per cent heavy clay; 20 per cent sand and gravel Soil pH: from 4.5 to 8.5 (continuous liming program to reach a minimum topsoil pH of 6) Crops: 5000ha wheat, 2000ha barley and 2000ha of fallow, canola and pasture.. Nick says dry conditions at season's end (late spring) can now be pretty much guaranteed, so for the farm to be profitable and sustainable, timely crop emergence under marginal conditions needs to be improved... Yield data, collected since 2003 and from typical seasons, will be used for zoning, as will Precision SoilTech soil testing, nutrient analysis from CSBP (a division of Wesfarmers) and local knowledge, Nick says...
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Catalogue: GRDC Media
The prospect of wheat varieties carrying drought tolerance genes is exciting news for northern NSW grain grower Geoff O'Neill, of "Llano", Bellata... The ARC Centre of Plant Energy Biology at Australian National University has identified genes which influence how plants cope under moisture stress... The property receives an annual average rainfall of 590mm, and although it falls predominantly in summer, the most useful rain arrives during the winter months...
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Catalogue: GRDC Media
Drought tolerance genes to provide spring protection.. The ARC Centre of Plant Energy Biology at Australian National University has identified genes which influence how plants cope under moisture stress... "In years when the rainfall outlook is marginal, or our subsoil moisture is not ideal, having varieties with the ability to tolerate moisture stress will give us a lot more confidence to go ahead and plant."..
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Catalogue: GRDC Updates
Impact of crown rot on yield and quality is a balancing act between inoculum levels and soil water.. Table 1: Pratylenchus thornei tolerance, crown rot resistance ratings and yield of 10 bread wheat and 1 durum variety evaluated at Gurley in 2012... It is evident that varieties which have good levels of tolerance to Pt combined with some level of resistance to crown rot (even MS) had a significant improvement in yield in the presence of both of these diseases...
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