Variation in wheat protein content : the effect of environment

Over the past 20 years, the average protein content of WesternAustralian wheat has ranged from 9.3 to 12.0 per cent, with a mean level of 10.4 per cent. At most grain receival points, in any one season, individual loads can often vary in protein content by as much as 5 per cent protein or more. Rainfall and soil fertility account for much of this variation

High-Speed Real-Time Simulators for Engineering Design

The use of computer simulations is now an established technique in engineering design. Many of these simulations are used to predict the expected behavior of systems that are not yet built, or of existing systems in modes of operation, such as catastrophic failure, in which it is not feasible to test the real system. Another use of computer simulations is for training and testing purposes in which the simulation is interfaced to real hardware, software and/or a human operator and is required to operate in real-time. Examples are plant simulators for operator training or simulated environments for testing hardware or software components. The primary requirement of a real-time simulation is that it must complete all the calculations necessary to update the simulator outputs as well as all the necessary data I/O within the allotted frame time. Many real-time simulations use frame times in the range of a few milliseconds and greater.There is an increasing number of applications, for example in power electronics and automotive systems, in which much shorter frame rates are required. This paper reviews some of these applications and the approaches to real-time simulation that can achieve frame times in the range 5 to 100 microseconds.

Rapeseed. 4. Grain quality

RAPESEED is capturing an increasing share of the world edible oilseed market. It competes with other oilseeds such as soyabeans, peanuts, sunflower and safflower seed. If Western Australia is to share in these markets it is essential that only high quality seed is produced

Grow barley for malt or feed

MALTING barley can be grown in certain areas receiving more than 13 inches annual rainfall, and farmers have to make a choice between growing barley for malt or feed in these areas

Lupin wild types introduced into Western Australia to 1973

Collection site data, preliminary rating of field characteristics and disease reactions, and measurements of seed protein oil contents

Trends in wheat protein/yield relationships

The major concern of wheat breeders in WesternAustralia has been to increase grain yield while maintaining quality at an acceptable level. There has been no concious effort to select for protein content. It is of interrest, therefore, to compare the relationship between yield and protein of varieties which have been prominent in Western Australia at various times, to see what effects yield increases have had on protein content and the extent of any variation which might exist

Tincurrin : a new biscuit wheat

Although a demand has existed both locally and overseas for soft wheat suitable for biscuits, cakes and various confectioneries, production has been very limited. In 1978 farmers in the soft wheat area will be able to grow the higher yielding variety Tincurrin. It is recommended for general sowing to replace all varieties grown at present in the soft wheat areas as defined.Exceptions may prevail in areas prone to rust snd septoria problems

Barley staining

GRAIN discolouration or staining is a quality defect in W.A. barley which substantially reduces the marketable value oi the crop. It also causes heavy losses to individual growers whose grain is docked or rejected