Teaching botany on the sunny side of the tree: promoting investigative studies of plant ecophysiology through observations and experiments on sun and shade leaves

Abstract

Investigations on sun and shade leaves allow students to compare plant growth patterns in different environments and to appreciate plants as slow-motion combatants for light as a resource Plants can respond developmental^ to many environmental stimuli. Sun and shade leaves are an example of an acclimation to light intensity. This paper describes how this phenomenon can be used as a stimulating vehicle for teaching plant ecophysiology to undergraduates. Detailed protocols for investigations are outlined, with an appendix relating to studies in schools. We also provide representative data and introduce topics for classroom or tutorial discussion.