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Seed Germination Requirements Of Four Fire-Recruiter Chaparral Shrubs, Kati Mcclain
Seed Germination Requirements Of Four Fire-Recruiter Chaparral Shrubs, Kati Mcclain
Celebration of Scholarship 2012-2017
No abstract provided.
Seed Germination Requirements For Four Fire-Recruiter Chaparral Shrubs, Kati Mcclain
Seed Germination Requirements For Four Fire-Recruiter Chaparral Shrubs, Kati Mcclain
Senior Honors Projects
Wildfires are a natural part of chaparral ecosystems, as they are essential to vegetative regrowth and plant recruitment. For many chaparral species, fire stimulates germination of dormant seeds in the seed bank. This study explored fire-related cues necessary for seed to break dormancy, germinate, and emerge in four chaparral species (Ceanothus cuneatus, C. jepsonii, Arctostaphylos manzanita, A. viscida). Seed were exposed to various treatments mimicking wildfire conditions, including boiling water and charred wood (charate), as well as physical scarification by concentrated acid, and monitored for germination. Our data indicate that Ceanothus seed require heat cues to germinate, but fire-related chemical …