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Soil seed bank longevity information for weed eradication target species

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Brooks, S. J. and Setter, S. D. (2012) Soil seed bank longevity information for weed eradication target species. Pakistan Journal of Weed Science Research, 18 . pp. 73-83.



The longevity of seed in the soil is a key determinant of the cost and length of weed eradication programs. Soil seed bank information and ongoing research have input into the planning and reporting of two nationally cost shared weed eradication programs based in tropical north Queensland. These eradication programs are targeting serious weeds such as Chromoleana odorata, Mikania micrantha, Miconia calvescens, Clidemia hirta and Limnocharis flava. Various methods are available for estimating soil seed persistence. Field methods to estimate the total and germinable soil seed densities include seed packet burial trials, extracting seed from field soil samples, germinating seed in field soil samples and observations from native range seed bank studies. Interrogating field control records can also indicate the length of the control and monitoring periods needed to exhaust the seed bank. Recently, laboratory tests which rapidly age seed have provided an additional indicator of relative seed persistence. Each method has its advantages, drawbacks and logistical constraints.

Item Type:Article
Business groups:Biosecurity Queensland
Subjects:Science > Invasive Species > Plants > Eradication and containment
Live Archive:18 Jul 2013 06:55
Last Modified:29 Jan 2024 03:17

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