Detecting the Seeds of Nassella neesiana in Large Round Hay Bales, by Means of Non-Destructive Core Sampling

Weller, Sandra, Florentine, Singarayer, Sillitoe, James, Grech, Charles, McLaren, David and Chauhan, Bhagirath Singh (2015) Detecting the Seeds of Nassella neesiana in Large Round Hay Bales, by Means of Non-Destructive Core Sampling. PLoS One, 10 9: e0137343-e0137343. doi:10.1371/journal.pone.0137343

Author Weller, Sandra
Florentine, Singarayer
Sillitoe, James
Grech, Charles
McLaren, David
Chauhan, Bhagirath Singh
Title Detecting the Seeds of Nassella neesiana in Large Round Hay Bales, by Means of Non-Destructive Core Sampling
Journal name PLoS One   Check publisher's open access policy
ISSN 1932-6203
Publication date 2015-09-01
Year available 2015
Sub-type Article (original research)
DOI 10.1371/journal.pone.0137343
Open Access Status DOI
Volume 10
Issue 9
Start page e0137343
End page e0137343
Total pages 15
Place of publication San Francisco, CA United States
Publisher Public Library of Science
Language eng
Formatted abstract
In the last three decades or so there has been a significant increase in fodder trading, both in terms of the quantity of fodder traded and in terms of its economic value to the industry. Often, this fodder type may be supplied free of charge to graziers in distress due to circumstances that follow natural disasters such as bushfires, drought, and flood. However, because of the obvious urgency arising from these situations, it is suspected that much relief fodder may unintentionally pose an elevated risk for dispersal of weeds since it may be supplied from pasture not normally used for trade in fodder, and therefore is of unknown quality. Previous destructive method to detect weed propagules in bales of fodder are cumbersome, time consuming and of limited ecological and statistical value. Therefore, objective of this paper was to development of a convenient method to assess round pasture hay bales for the presence of weed propagules, to prevent unintentional spread of noxious species in hay bales. To examine this objective known quantity of seeds were added in a series of distributions to bales of seed free pasture hay, and a positive correlation for the amount of seed added per bale with that recovered in core samples was observed. Whilst the number of seeds detected per bale varied according to the distribution of seeds within the bales and the number of cores analysed, the absolute detection of seeds suggests that this sampling method is worthy of further examination. In addition, a pragmatic estimation of bale remnants after stock feeding has been investigated to more closely estimate the potential size of the remaining seed bank. The authors propose that development of this approach is timely, in the light of future climatic uncertainty driving extreme weather events that increase the need for relief fodder, which can be a potential vector for the spread of noxious weed seeds.
Keyword Dispersal
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2016 Collection
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Created: Sun, 04 Oct 2015, 10:24:06 EST by System User on behalf of Qld Alliance for Agriculture and Food Innovation