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Plant Sciences

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Department of Primary Industries and Regional Development, Western Australia

Technical Bulletins

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Wheat

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Analysis Of Black Point In Wheat, J M. Wilson Oct 1993

Analysis Of Black Point In Wheat, J M. Wilson

Technical Bulletins

Fungal staining (black point) of wheat can reduce the quality of grain. The most serious problem is a discolouration of products. Discolouration is a consequence of infection by microorganisms. The most likely cause in Western Australia is a species of the common fungus Alternaria. Infection and discolouration occur between flowering and grain maturity, and the optimum environmental conditions are probably consecutive days of high relative humidity together with warm temperatures.


Wheat And Barley Experiments On The Kumarl Soils At Salmon Gums, D A. Collins, Michael D A Bolland, R D. Fletcher Jan 1987

Wheat And Barley Experiments On The Kumarl Soils At Salmon Gums, D A. Collins, Michael D A Bolland, R D. Fletcher

Technical Bulletins

The water-holding capacity of these soils, and their location in a low rainfall area combine to make them marginal for producing grain. In contrast to sowing wheat on ley pasture, mechanically fallowing the year before planting markedly improved grain yields by 1.3 to 4 times.


Response To Nitrogen Fertilisers Of Wheat, Oats, And Barley In Western Australia, M G. Mason, R N. Glencross Jan 1980

Response To Nitrogen Fertilisers Of Wheat, Oats, And Barley In Western Australia, M G. Mason, R N. Glencross

Technical Bulletins

Trials were mainly sited in areas normally receiving more than 450 mm average annual rainfall. Response curves were fitted to each set of data and then averaged to give overall response curves for each crop. There was little difference between the crops in absolute or percentage response to nitrogen fertiliser but the nitrogen fertiliser rate required for maximum yield was highest for wheat and lowest for oats.


Nitrogen Fertilisers For Rape (Brassica Campestris And B Napus) And Wheat In Western Australia, M G. Mason Jan 1979

Nitrogen Fertilisers For Rape (Brassica Campestris And B Napus) And Wheat In Western Australia, M G. Mason

Technical Bulletins

Absolute yield increases tended to be greater for wheat than rape at 63 per cent of the nitrogen responsive sites, but percentage yield increases and rate of N for maximum yield tended to be greater for rape than for wheat. When average response curves over all trials were considered, there was little difference between the two crops in terms of percentage responsiveness and N rate for maximum yield in areas with less than 460 mm average rainfall, but in higher rainfall areas the response to N was higher.