Publication Date
1990
Document Type
Report
DPIRD Collections
Grains and field crops
Abstract
Trial 88WH47
Control of doublegee in pasture.
Location: Wongan Hills.
To assess the effects of repeated pre-emergence and post - emergence applications of herbicides upon survival and seed production by doublegee. To measure the effects of herbicides upon pasture composition and the sizes of doublegee seed banks.
Trial 89MC2, 89WH7, 89EC1
Simulated invasion by doublegee.
Location: Manjimup, Wongan Hills and East Chapman.
In spite of the significance of weed invasion to the overall problem of weed management, almost nothing is known about factors which influence invasion. The aim of this study was to assess the relative importance of seed number and seed burial to colonization success in doublegee.
Trial 88PE100,
Changes in germination potential of doublegee seeds during field storage.
Little is known about the fate of newly produced doublegee seeds. The course of after-ripening and/or the imposition of dormancy may influence whether a seed germinates or becomes part of a persistent seed bank.
Trial 89WH89
Dispersal and burial of doublegee seeds.
Location: Wongan Hills.
Previous studies have indicated that the fate of doublegee seeds depends to a large extent upon their degree of burial. This study aims to quantify aspects of seed movement and burial under field conditions.
Number of Pages
11
Keywords
Western Australia, Doublegee ecology.
Recommended Citation
Panetta, F D. (1990), Ecology and control of doublegee.. Department of Primary Industries and Regional Development, Western Australia, Perth. Report.
