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Full-Text Articles in Life Sciences
Analysis Of Black Point In Wheat, J M. Wilson
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.
Residual Value Of Rock Phosphate Fertilizers, J W. Bowden, Michael D A Bolland
Residual Value Of Rock Phosphate Fertilizers, J W. Bowden, Michael D A Bolland
Technical Bulletins
The residual value of Christmas Island C-grade ore, 500 degrees C heated (calcined) C-grade ore (Calciphos), and superphosphate was measured in three experiments. Plant yield, and bicarbonate-soluble phosphorus extracted from the top 10 cm of soil were used to indicate the effectiveness of the four fertilizers. Using either of these indicators, superphosphate was the most effective fertilizer.
Wheat And Barley Experiments On The Kumarl Soils At Salmon Gums, D A. Collins, Michael D A Bolland, R D. Fletcher
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.
Continuous Cereal Cropping With Alternative Tillage Systems In Western Australia, R J. Jarvis, N D. Delroy, A P. Hamblin
Continuous Cereal Cropping With Alternative Tillage Systems In Western Australia, R J. Jarvis, N D. Delroy, A P. Hamblin
Technical Bulletins
In 1977, a ten year series of continuous cropping trials was commenced to compare the effect of four farm tillage systems. This bulletin reports the grain yield results for the first six years of these trials.
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Virus, Viroid, Mycoplasma And Rickettsial Diseases Of Plants In Western Australia, L K. Price, George Mclean
Technical Bulletins
Provides details of the virus, viroid, mycoplasma and rickettsial diseases recorded on plants in Western Australia. To establish these records, a range of tests have been used including sap transmission; leaf dip electron microscopy; aphid transmission and serology. The authenticity for each record is noted in the list of pathogens.
Response To Nitrogen Fertilisers Of Wheat, Oats, And Barley In Western Australia, M G. Mason, R N. Glencross
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
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.
Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing
Cereal, Pasture Legume And Water Supply Prospects At Forrestania : Results Of Experimental Work East Of Hyden, Western Australia, T E. Mcdowell, M G. Mason, J W. Gartrell, William J. Toms, I A F Laing
Technical Bulletins
The agricultural potential of the Forrestania area appears at least equal to that of much of the settled eastern wheatbelt. The scrubplain soils of the Forrestania area have an average yield potential of at least 1 000 kg/ha wheat and carrying capacity of 1.8 to 3.7 sheep per hectare on improved pastures. The use of clover ley rotations would maintain these levels of potential yield. Partial crop failures caused by adverse seasonal conditions could be expected 10 years in every 100.
Lupin Wild Types Introduced Into Western Australia To 1973, G B. Crosbie, John S. Gladstones
Lupin Wild Types Introduced Into Western Australia To 1973, G B. Crosbie, John S. Gladstones
Technical Bulletins
Collection site data, preliminary rating of field characteristics and disease reactions, and measurements of seed protein oil contents.
Annual Medicago Ecotypes From North West Libya, M Khalil, C M. Francis, N J. Trotman
Annual Medicago Ecotypes From North West Libya, M Khalil, C M. Francis, N J. Trotman
Technical Bulletins
Nine Medicago species were represented in collections from 10 sites in North West Libya. This report outlines species distribution, maturity characteristics and coumestrol content of the ecotypes collected. Medicago laciniata was the most common species collected but there appeared to be a relationship to soil type amongst other species. M. truncatula predominated on heavier textured soils but M. tornata and M. littoralis were more frequent on sandy soils. The Libyan ecotypes were typically early flowering with a rapid rate of burr maturation. They contained low to moderate levels of the plant oestrogen coumestrol in dry stems. Evaluation work was carried …