Seed development in Malva parviflora: Onset of germinability, dormancy and desiccation tolerance

Michael, Pippa J., Steadman, Kathryn J. and Plummer, Julie A. (2007) Seed development in Malva parviflora: Onset of germinability, dormancy and desiccation tolerance. Australian Journal of Experimental Agriculture, 47 6: 683-688. doi:10.1071/EA06078

Author Michael, Pippa J.
Steadman, Kathryn J.
Plummer, Julie A.
Title Seed development in Malva parviflora: Onset of germinability, dormancy and desiccation tolerance
Journal name Australian Journal of Experimental Agriculture   Check publisher's open access policy
ISSN 0816-1089
Publication date 2007
Sub-type Article (original research)
DOI 10.1071/EA06078
Volume 47
Issue 6
Start page 683
End page 688
Total pages 6
Editor C. A. Anderson
Place of publication Collingwood
Publisher CSIRO Publishing
Collection year 2008
Language eng
Subject C1
270402 Plant Physiology
770804 Control of pests and exotic species
Abstract Seed development was examined in Malva parviflora. The first flower opened 51 days after germination; flowers were tagged on the day that they opened and monitored for 33 days. Seeds were collected at 12 stages during this period and used to determine moisture content, germination of fresh seeds and desiccation tolerance (seeds dried to 10% moisture content followed by germination testing). Seed moisture content decreased as seeds developed, whereas fresh (max. 296 mg) and dry weight (max. 212 mg) increased to peak at 12-15 and similar to 21 days after flowering (DAF), respectively. Therefore, physiological maturity occurred at 21 DAF, when seed moisture content was 16-21%. Seeds were capable of germinating early in development, reaching a maximum of 63% at 9 DAF, but germination declined as development continued, presumably due to the imposition of physiological dormancy. Physical dormancy developed at or after physiological maturity, once seed moisture content declined below 20%. Seeds were able to tolerate desiccation from 18 DAF; desiccation hastened development of physical dormancy and improved germination. These results provide important information regarding M. parviflora seed development, which will ultimately improve weed control techniques aimed at preventing seed set and further additions to the seed bank.
Keyword Agriculture, Multidisciplinary
small-flowered mallow
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
2008 Higher Education Research Data Collection
School of Pharmacy Publications
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 18 Feb 2008, 17:15:53 EST