Browsing Open Theses & Dissertations by Thesis Supervisor "Higgins, Colleen M."
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Impacts of Soil Origin and Fire on Arbuscular Mycorrhizal Fungi Associated With Hawkweeds and Tall Tussock
(Auckland University of Technology, 2021)New Zealand’s tussock grasslands have faced ongoing plant invasions of the hawkweeds Pilosella officinarum and Hieracium lepidulum. Plant invasions may be facilitated through plant-soil feedbacks, whereby a plants growth ... -
Population Analysis and Subgroup Diagnosis of Lettuce necrotic yellows virus in New Zealand
(Auckland University of Technology, 2021)Lettuce is a key economic crop in New Zealand (NZ). However, recently NZ has experienced increased crop losses of up to 50 %. These losses were due to necrosis symptoms on leaves, which were strongly associated with the ...