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Full-Text Articles in Life Sciences
Disease And Insect Resistance Screening Of The National Subterranean Clover Collection, D J. Gillespie, M J. Barbetti
Disease And Insect Resistance Screening Of The National Subterranean Clover Collection, D J. Gillespie, M J. Barbetti
Division of Plant Research : Technical Report Series
This project commenced in May 1981 primarily to identify sources of resistance to clover scorch (Kabatiella caulivora), root rots (Pythium, Fusarium and Rhizoctonia spp.), and bluegreen aphid (Acyrthospihon kondoi) in the National Subterranean Clover Collection. Screening for resistance to red legged earthmite (Halotydeus destructor) was initiated part way through the project. Since commencement approximately 5,250 introductions and crossbred clover shave been tested for resistance to clover scorch, 420 for resistance to rootrots, 690 for resistance to blue green aphid and 160 for resistance to redlegged earth mite (R.L.E.M.). A large number of clovers possessing resistance to clover scorch have been …
Factors Affecting Frost Damage To Wheat In Western Australia, S P. Loss
Factors Affecting Frost Damage To Wheat In Western Australia, S P. Loss
Division of Plant Research : Technical Report Series
It may at first seem strange that precious research funds are being channelled into a project concerned with frost damage in a country where high temperatures and moisture stress limit the growth of plants for a large portion of the year. But cereal crops are only grown in the temperate zones of the continent during winter and spring when they may be exposed to low diurnal temperatures. In many areas cold damage is irregular and rare,however it limits yields not only by causing actual damage but also by restricting the most effective period for flowering. For muck of the Australian …
The Esperance Rotation Trial, Effect Of Rotations On Crop Yields And Soil Fertility, I C. Rowland
The Esperance Rotation Trial, Effect Of Rotations On Crop Yields And Soil Fertility, I C. Rowland
Division of Plant Research : Technical Report Series
This report sets out and summarises data from the Esperance rotation trial.This long-term trial, situated on the Esperance Downs Research Station, looks at various aspects of rotations based on subterranean clover pasture with cereals or sweet lupins as a crop. Data included are yields of the crops both grain and dry matter at anthesis or mid-pod fill also nitrogen content at these two times; pasture production and composition in Spring; clover seed production; weed counts in the crop; soil measurements of total soil nitrogen,organic carbon, mineral nitrogen, pH and extractable potassium are done at thestart of each season.The trial, on …
Climate Of The Ord River Irrigation Area Western Australia, Implications For Crop Production, Rob J. Delane
Climate Of The Ord River Irrigation Area Western Australia, Implications For Crop Production, Rob J. Delane
Division of Plant Research : Technical Report Series
Management should be aimed at early planting to take advantage of higher soil and air temperatures, promoting rapid canopy closure, high final dry matter production and earlier calendar maturity. This will aid in attaining high yields, good grain quality, and low risk of harvesting delays or crop damage due to rain. However, early dry season planting is hindered by late maturation of some wet season crops, and excessive weed growth and slow soil drying following the wet season. The development (or adaption) of improved crop rotations, improved land utilisation and reduced tillage techniques will likely bring forward dry season planting …