Thigmo What? Thigmomorphogeneiss! How Trees Respond to Wind
Date/Time/Session: 5/10/2017, 10:30:00 AM, “Plans” Breakout
Presentation Length: 50 mins
Presented by: Frank W. Telewski
Overview of Presentation:
Trees have to perceive and respond to wind or loading due to ice and snow accumulation in order to resist and/or deflect the mechanical loading imposed by these physical forces. The physiological response of trees to this type of mechanical loading is known as thigmomorphogenesis. Trees can alter their growth in response to mechanical loading in a number of ways to ensure they won’t fail under prevailing conditions. They do so by altering their morphology (height, trunk diameter, and/or crown shape), anatomy (production of new wood cells), and mechanical properties of their trunks and branches. This talk will introduce the participant to aspects of tree perception and physiological response to mechanical loading and how the alterations in tree growth and structure improve their ability to resist future loading. They will also learn how trees respond to gravity (gravitropism) and how this response is different from thigmomorphogenesis. Allowing and providing for trees to perceive and respond to mechanical loads is a critical consideration in tree care. This includes all aspects of tree care from nursery production, landscape installation, and pruning practices.
Dr. Telewski is currently Professor of Plant Biology and Director of the W. J. Beal Botanical Garden and Campus Arboretum at Michigan State University. He has published over 50 peer reviewed articles and book chapters on tree physiology, ecology, dendrochronology, and biomechanics. He is internationally recognized for his work in tree biomechanics and tree growth responses to wind and given numerous talks to national and international chapters of the ISA and nursery groups .