Abstract
Reducing the number of viable weed seeds entering a field is critical to successful weed management. Viable seeds can result from weed survivors that reach maturity, or can be imported into the field via livestock, grain, fodder, or machinery. Few reports exist on the survival of seeds in silage, or the consequence of feeding the silage to livestock. Seeds from five grass weeds, six broadleaf weeds and three pasture species were ensiled, underwent 48 hour in sacco digestion or both. Seeds germination was determined after incubation at diurnally fluctuating temperatures of 25/15 C.Tetrazolium staining was used to determine the viability of ungerminated seed. Seed germination and viability were compared with untreated seeds. Seed from all grass weeds except annual ryegrass were rendered unviable after being ensiled, whereas some broadleaf weed seeds remained viable. Digestion had a similar effect as ensilage on reducing seed viability, except for silverleaf nightshade and prairie ground cherry where no reduction in viability was observed. The viability of marshmallow seed and the three pasture species was not significantly reduced by either ensilage or digestion. Ensile or digestion can provide non-chemical options for effective weed management for certain weed species.
Original language | English |
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Title of host publication | Proceedings of the 18th Australasian Weeds Conference (2012) |
Subtitle of host publication | Developing Solutions to Evolving Weed Problems |
Editors | Valerie Eldershaw |
Place of Publication | Melbourne |
Publisher | Weed Society of Victoria |
Pages | 219-221 |
Number of pages | 3 |
ISBN (Print) | 9780646586700 |
Publication status | Published - 2012 |
Event | 18th Australian Weeds Conference: Developing Solutions to Evolving Weed Problems - The Sebel, Albert Park, Melbourne, Australia Duration: 08 Oct 2012 → 11 Oct 2012 Conference number: 18th https://caws.org.nz/old-site/awc_contents.php?yr=2012 |
Conference
Conference | 18th Australian Weeds Conference |
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Abbreviated title | Developing Solutions to Evolving Weed Problems |
Country/Territory | Australia |
City | Melbourne |
Period | 08/10/12 → 11/10/12 |
Internet address |