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Duggin, John A
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Given Name
John A
John
Surname
Duggin
UNE Researcher ID
une-id:jduggin
Email
jduggin@une.edu.au
Preferred Given Name
John
School/Department
Administration
1 results
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- PublicationGermination response to temperature of 'Phyla canescens' (lippia)(Weed Management Society of South Australia, 2006)
;MacDonald, Matthew Scott; ; ;Julien, Mic H'Phyla canescens' (Kunth) Greene (Verbenaceae) is an introduced invasive herb of floodplain pastures and wetlands in the Murray-Darling Basin. Its germination response to 81 constant and alternating temperatures was studied using a two-way thermogradient plate. The experiment was repeated for seed aged four months and 16 months, as well as seed collected from a population in another catchment. Germination prediction surfaces were generated using Geographical Information Systems-based techniques. All seed batches exhibited a 'homothermophobic' response, in which virtually no seed germinated at constant temperatures. The ecological significance of the homothermophobic germination response is discussed.