Life Sciences Commons^™

Seed Phosphorus : Its Effect On Plant Production, Mike Bolland, Mike Riley, Brett Thomson, Blakely Paynter, Mike Baker

Journal of the Department of Agriculture, Western Australia, Series 4

The amount of phosphorus in the seed of annual crop and pasture species influences production of plants grown from that seed. It appears the more phosphorus there is in the seed, the better the potential yield irrespective of whether fertilizer phosphorus is applied to the soil or not. This article discusses the influence of phosphorus concentration in the seed of annual crop and pasture species on subsequent production. It also explains the difference between phosphorus concentration and phosphorus content in the seed

Coping With Brown Spot And Root Rots Of Lupins, Mark Sweetingham

Journal of the Department of Agriculture, Western Australia, Series 4

There is increasing concern that brown spot and root diseases may limit the long term viability of lupin cultivation in close rotations in the agricultural areas of Western Australia. Research has found several useful strategies to reduce the impact of brown spot and Pleiochaeta root rot so that losses can be kept to a minimum. Rhizoctonia has proved more difficult to combat. Although less widespread than Pleiochaeta, it has caused severe losses and appears to be increasing in incidence, particularly in the northern wheatbelt. Research has vastly expanded our knowledge of the strains of Rhizoctonia present in our soils and …

Waterlogging : How It Reduces Plant Growth And How Plants Can Overcome Its Effects, Tim Setter, Bob Belford

Journal of the Department of Agriculture, Western Australia, Series 4

Lack of oxygen is the major cause of limited plant growth in waterlogged soils. When soils become waterlogged less gas diffuses to and from the roots through the soil pores; there are changes in concentrations of mineral elements in soil solutions; and toxic products of roots and soil microorganisms begin to accumulate. These changes adversely affect germination, growth and development of plants.

Plant Growth And Survival In Saline, Waterlogged Soils, Ed Barrett-Lennard, Neil Davidson, Richard Galloway

Journal of the Department of Agriculture, Western Australia, Series 4

Waterlogged soils in Western Australia are often salt-affected. Recent research has shown that the interaction between waterlogging and salinity has a far greater adverse effect on plant groivth and survival than either of these two factors individually. The consequences of the combined effects of salt and waterlogging for most plant species are increased salt uptake, reduced growth, chlorosis (yellowing of leaves), defoliation, and death. Salt sensitive agricultural species (nonhalophytes) are more severely affected by this interaction than salt tolerant species (halophytes).

Export Oaten Hay For The Japanese Market, Mick Poole, Rob Nussey

Journal of the Department of Agriculture, Western Australia, Series 4

Western Australian hay producers have a foothold in the lucrative Japanese market for forage products. The industry hopes to export about 30,000 tonnes in 1990-91.

The Extent And Cost Of Waterlogging, Don Mcfarlane, Buddy Wheaton

Journal of the Department of Agriculture, Western Australia, Series 4

Waterlogging is an underrated and not widely recognized problem in our cropping areas. Before we can tackle the problem through drainage and alternative cropping systems, we need to know its extent and how much crop yield is lost. The effect of waterlogging on pasture growth is also poorly known.

Wheat Quality For The Japanese Flour Milling And Noodle Industries, Graham Crosbie, Dianne Miskelly, Tim Dewan

Journal of the Department of Agriculture, Western Australia, Series 4

About one-third of Australia's wheat production is used in the manufacture of Asian noodles. Japan is one of our most important noodle wheat markets. In that country much of the 900,000 to 1,000,000 tonnes of Australian wheat bought each year is used for noodle production. About 70 per cent of this wheat is Australian Standard White (ASW)from Western Australia. ASWis highly regarded for its suitability for the production of white, Japanese-style noodles. The remainder comprises mainly Australian Prime Hard (APH) which is valued for the production of yellow, Chinese-style noodles and for various breads. This article discusses quality aspects associated …

The Segregation Of Wheat For Noodles, Graham Crosbie

Journal of the Department of Agriculture, Western Australia, Series 4

The Western Australian segregation of wheat of selected varieties to cater for the requirements of the established Japanese noodle wheat market and an emerging market for this type of wheat in South Korea started in the 1989-90 season. In this article, Graham Crosbie, who pressed strongly for this segregation, explains the background behind its introduction and the need to ensure its success.

Causes Of Waterlogging, Jim Cox, Don Mcfarlane

Journal of the Department of Agriculture, Western Australia, Series 4

Waterlogging is highly variable, both between years and within paddocks. This residts in uncertainty as to whether a paddock should be cropped in a particular year, and whether different management should be used on waterlogged areas within a paddock

A study has determined what are the most important causes of waterlogged soils.