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Micropropagation and Reintroduction of Hill’s Thistle (Cirsium hillii. (Canby) Fernald) to its Natural Habitat in Bruce Peninsula National Park

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Title: Micropropagation and Reintroduction of Hill’s Thistle (Cirsium hillii. (Canby) Fernald) to its Natural Habitat in Bruce Peninsula National Park
Author: Sheikholeslami, Bita
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Saxena, Praveen
Abstract: Hill’s thistle (Cirsium hillii. (Canby) Fernald) is a perennial endemic to The Great Lakes region of North America. Hill’s thistle is listed as threatened in Canada where it is found in unique alvar habitats. Reintroduction of Hill’s thistle through optimized micropropagation could ensure revival of its ecological biodiversity. The objective of this study was to micropropagate Hill’s thistle from seeds collected from the Bruce Peninsula National Park and to reintroduce micropropagated plants back to their natural habitat. A Micropropagation protocol was developed from seeds and three hundred plants were micropropagated and reintroduced to Bruce Peninsula National Park. For the first transplant, 99% of the plants were alive in the fall and 99% of them overwintered and for the second transplant, 66.7% of the plants survived and 90% of them overwintered. This study confirms the benefits of using tissue culture techniques in conservation of Hill’s thistle and other species at risk.
URI: http://hdl.handle.net/10214/15854
Date: 2019-03


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