EconPapers    
Economics at your fingertips  
 

Secondary dormancy of seeds in relation to the Bromus tectorum-Pyrenophora semeniperda pathosystem

Katie Karen Hawkins, Phil Allen and Susan Meyer
Additional contact information
Katie Karen Hawkins: Department of Plant and Wildlife Sciences, Brigham Young University, Provo, USA
Phil Allen: Department of Plant and Wildlife Sciences, Brigham Young University, Provo, USA
Susan Meyer: Shrub Sciences Laboratory, Provo, USA

Plant Protection Science, 2013, vol. 49, issue SpecialIssue, S11-S14

Abstract: Bromus tectorum is a highly invasive annual grass. The fungal pathogen Pyrenophora semeniperda can kill a large fraction of B. tectorum seeds. Outcomes in this pathosystem are often determined by the speed of seed germination. In this paper we extend previous efforts to describe the pathosystem by characterising secondary dormancy acquisition of B. tectorum. In the laboratory approximately 80% of seeds incubated at -1.0 MPa became dormant. In the field, seeds were placed in the seed bank in late autumn, retrieved monthly and dormancy status determined. The field study confirmed the laboratory results; ungerminated seeds became increasingly dormant. Our data suggest that secondary dormancy is much more likely to occur at xeric sites.

Keywords: biological control; invasive annual grass (search for similar items in EconPapers)
Date: 2013
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://pps.agriculturejournals.cz/doi/10.17221/30/2013-PPS.html (text/html)
http://pps.agriculturejournals.cz/doi/10.17221/30/2013-PPS.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:49:y:2013:i:specialissue:id:30-2013-pps

DOI: 10.17221/30/2013-PPS

Access Statistics for this article

Plant Protection Science is currently edited by Ing. Eva Karská, (Executive Editor PPS)

More articles in Plant Protection Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().

 
Page updated 2025-03-19
Handle: RePEc:caa:jnlpps:v:49:y:2013:i:specialissue:id:30-2013-pps